Metadata: Identification_Information: Citation: Citation_Information: Originator: Blake, M.C., Jr. Originator: Graymer, R.W. Originator: Jones, D.L. Originator: Soule, A. Publication_Date: 1999 Title: Digital geologic map and map database of parts of Marin, San Francisco, Alameda, Contra Costa, and Sonoma Counties, California Edition: 1.0 Geospatial_Data_Presentation_Form: geologic map Series_Information: Series_Name: U.S. Geological Survey Miscellaneous Field Studies Map Issue_Identification: MF-2337 Publication_Information: Publication_Place: Menlo Park, CA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/mf/2000/2337/ Description: Abstract: This digital map database, compiled from previously published and unpublished data, and new mapping by the authors, represents the general distribution of bedrock and surficial deposits in the mapped area. Together with the accompanying text file (mageo.txt, mageo.pdf, or mageo.ps), it provides current information on the geologic structure and stratigraphy of the area covered. The database delineates map units that are identified by general age and lithology following the stratigraphic nomenclature of the U.S. Geological Survey. The scale of the source maps limits the spatial resolution (scale) of the database to 1:62,500 or smaller. Purpose: This database and accompanying plot files depict the distribution of geologic materials and structures at a regional (1:62,500) scale. The report is intended to provide geologic information for the regional study of materials properties, earthquake shaking, landslide potential, mineral hazards, seismic velocity, and earthquake faults. In addition, the report contains new information and interpretations about the regional geologic history and framework. However, the regional scale of this report does not provide sufficient detail for site development purposes. In addition, this map does not take the place of fault-rupture hazard zones designated by the California State Geologist (Hart and Bryant, 1997). Similarly, the database cannot be used to identify or delineate landslides in the region. Supplemental_Information: The databases in this report were compiled in ARC/INFO, a commercial Geographic Information System (Environmental Systems Research Institute, Redlands, California), with version 3.0 of the menu interface ALACARTE (Fitzgibbon and Wentworth, 1991, Fitzgibbon, 1991, Wentworth and Fitzgibbon, 1991). The files are in either GRID (ARC/INFO raster data) format or COVERAGE (ARC/INFO vector data) format. Coverages are stored in uncompressed ARC export format (ARC/INFO version 7.x). ARC/INFO export files (files with the .e00 extension) can be converted into ARC/INFO coverages in ARC/INFO (see below) and can be read by some other Geographic Information Systems, such as MapInfo via ArcLink and ESRI's ArcView (version 1.0 for Windows 3.1 to 3.11 is available for free from ESRI's web site: http://www.esri.com). The digital compilation was done in version 7.1.1 of ARC/INFO with version 3.0 of the menu interface ALACARTE (Fitzgibbon and Wentworth, 1991, Fitzgibbon, 1991, Wentworth and Fitzgibbon, 1991). The geologic map information was digitized from stable originals of the geologic maps at 1:62,500 scale. The author manuscripts (pen on mylar) were scanned using a Altek monochrome scanner with a resolution of 800 dots per inch. The scanned images were vectorized and transformed from scanner coordinates to projection coordinates with digital tics placed by hand at quadrangle corners. The scanned lines were edited interactively by hand using ALACARTE, color boundaries were tagged as appropriate, and scanning artifacts visible at 1:24,000 were removed. Revisions: 8/31/99 This is the pre-release version of the report. There have been no revisions to any part of the report. Data Revision List > File Report Version Last Update > Last Updated > > mamap.ps 1.0 > maexpl.ps 1.0 > mageo.ps 1.0 > mamap.pdf 1.0 > maexpl.pdf 1.0 > mageo.pdf 1.0 > ma-geol.e00 1.0 > ma-strc.e00 1.0 > ma-blks.e00 1.0 > ma-altr.e00 1.0 > ma-quad.e00 1.0 > ma-corr.e00 1.0 > ma-so.e00 1.0 > ma-terr.e00 1.0 > mageo.txt 1.0 > mafig1.tif 1.0 > mafig2.tif 1.0 > madb.ps 1.0 > madb.pdf 1.0 > madb.txt 1.0 > import.aml 1.0 > mageol.met 1.0 Reviews_Applied_to_Data: This report has undergone two scientific peer reviews, one digital database review, one review for conformity with geologic names policy, and review of the plotfiles for conformity with USGS map standards. Related_Spatial_and_Tabular_Data_Sets: This report consists of a set of geologic map database files (Arc/Info coverages) and supporting text and plotfiles. In addition, the report includes two sets of plotfiles (PostScript and PDF format) that will generate map sheets and pamphlets similar to a traditional USGS Miscellaneous Field Studies Report. These files are described below: > ARC/INFO Resultant Description of Coverage > export file Coverage > ----------- ----------- -------------------------------- > ma-geol.e00 ma-geol/ Polygon and line coverage showing faults, > depositional contacts, and rock units > in the map area. > > ma-strc.e00 ma-strc/ Point and line coverage showing strike and dip > information and fold axes. > > ma-blks.e00 ma-blks/ Point coverage showing location of high-grade > blocks in Franciscan rock units. > > ma-altr.e00 ma-altr/ Polygon coverage showing areas of hydrothermal > alteration. > > ma-quad.e00 ma-quad/ Line coverage showing index map of quadrangles > in the map area. Lines and annotation only. > > ma-corr.e00 ma-corr/ Polygon and line coverage of the correlation > table for the units in this map database. > This database is not geospatial. > > ma-so.e00 ma-so/ Line coverage showing sources of data index > map for this map database. > > ma-terr.e00 ma-terr/ Polygon and line coverage of the index map of > tectonostratigraphic terranes in the map area. > (Terranes are described in mageo.txt, > mageo.ps, or mageo.pdf). ASCII text files, including explanatory text, ARC/INFO key files, PostScript and PDF plot files, and a ARC Macro Language file for conversion of ARC export files into ARC coverages: > mageo.ps A PostScript plot file of a report containing > detailed unit descriptions and geological > information, plus sources of data and references > cited, with two figures. > > mageo.pdf A PDF version of mageo.ps. > > mageo.txt A text-only file containing an unformatted > version of mageo.ps without figures. > > mafig1.tif A TIFF file of Figure 1 from mageo.ps > > mafig2.tif A TIFF file of Figure 2 from mageo.ps > > madb.ps A PostScript plot file of a pamphlet containing > detailed information about the contents and > availability of this report. > > madb.pdf A PDF version of madb.ps. > > madb.txt A text-only file containing an unformatted > version of madb.ps. > > import.aml ASCII text file in ARC Macro Language to convert > ARC export files to ARC coverages in ARC/INFO. > > mamap.ps A PostScript plottable file containing an image > of the geologic map and base maps at a scale of > 1:62,500, along with a simple map key. > > maexpl.ps A PostScript plot file containing an image of > the explanation sheet, including terrane map, > index maps, correlation chart, and unit > descriptions. > > mamap.pdf A PDF file containing an image of the geologic > map and base maps at a scale of 1:62,500, along > with a simple map key. > > maexpl.pdf A PDF file containing an image of the > explanation sheet, including terrane map, index > maps, correlation chart, and unit descriptions. Base maps Base Map layers used in the preparation of the geologic map plotfiles were derived from published digital maps (Aitken, 1997), The base map digital files are not included in the digital database package. Other_References_Cited: Aitken, D.S., 1997, A digital version of the 1970 U.S. Geological Survey topographic map of the San Francisco Bay region, three sheets, 1:125,000 scale: U.S. Geological Survey Open-File Report 97-500. Armstrong, C. F., and Gallagher, Kathy, 1977, Fossils from the Franciscan assemblage, Alcatraz Island: California Geology, v. 30, p. 134. Bailey, E. H., Blake, C. M., and Jones, D. L., 1970, On-land Mesozoic oceanic crust in California Coast Ranges: U.S. Geol. Prof. Paper 700-C; C70-C81. Bailey, E. H., Irwin, W. P., and Jones, D. L., 1964, Franciscan and related rocks and their significance in the geology of western California: Calif. Div. Mines and Geology, Bull. 183, 177 p. Berkland, J. O., 1964, Swelling vermiculite clay in the Franciscan Formation ofnorthern California--Its role in possible chemical stabilization of mobileslopes: Paper presented to the National Convention of the Assoc. of Engineering Geologists, Sacramento, CA, 6 p. Berkland, J. O., 1969, Geology of the Novato quadrangle, Marin Co., CA: Unpublished M.S. thesis, San Jose State University, San Jose, CA. Blake, M. C., Jr., Bartow, J. A., Frizzell, V. A., Jr., Schlocker, Julius, Sorg, Dennis, Wentworth, C. M., and Wright, R. H., 1974, Preliminary geologic map of Marin and San Francisco Counties and parts of Alameda, Contra Costa, and Sonoma Counties, California: U. S. Geol. Survey Map MF-574. Blake, M. C., Jr., Howell, D. G., and Jayko, A. S., 1984, Tectonostratigraphic terranes of the San Francisco Bay Region, in Blake, M. C., ed., 1984, Franciscan Geology of Northern California: Pacific Section S.E.P.M., Vol. 43, p. 5-22. Blake, M. C., Jr., Howell, D. G., and Jones, D. L., 1982, Preliminary tectonostratigraphic terrane map of California: U. S. Geol. Survey Open-File Report 82-593, 9 p., 3 maps, scale 1: 750, 000. Blake, M. C., Jr., Irwin, W. P., and Coleman, R. G., 1967, Upside-down metamorphic zonation, blueschist facies, along a regional thrust in California and Oregon: U. S. Geol. Survey Prof. Paper 575C, p. 1-9. Blake, M. C., Jr., and Jones, D. L., 1974, Origin of Franciscan melanges in northern California: S.E.P.M., Special Paper No. 19, p. 255-263. Blake, M.C., Jr., and Wentworth, C.M., 1999, Structure and metamorphism of the Franciscan Complex, Mt. Hamilton area, Northern California: International rgGeology Review, v. 41, p. 417-424. Bonilla, M. G., 1971, Preliminary geolgic map of the San Francisco South quadrangle and part of the Hunters Point quadrangle, California: U.S. Geol. Survey Misc. Field Studies Map MF-311, (1:24,000). Brown, R. D., Jr., 1970, Faults that are historically active or that show evidence of geologically young surface displacement, San Francisco Bay Region: A progress report: Oct. 1970, U.S. Geol. Survey Open File Map, (1:250,000). Brown, R. D., and Wolfe, E. W., 1970, Map showing recently active breaks along the San Andreas fault between Pt. Delgada and Bolinas Bay, California: U.S. Geol. Survey Open File Map, (1:48,000). Brabb, E.E., Graymer, R.W., and Jones, D.L., 1998, Geology of the Palo Alto 30 X 60 minute quadrangle, California: A digital database: U.S. Geological Survey Open-File Report 98-348, includes plotfiles for 2 sheets, scale 1:100,000, database description pamphlet, 9 pp, geologic description and interpretation pamphlet, 16 p. Budding, K.E., Schwartz, D.P., and Oppenheimer, D.H., 1991, Slip rate, earthquake recurrence, and seismogenic potential of the Rodgers Creek fault zone, Northern California; initial results: Geophysical Research Letters, v. 18, no. 3, p. 447-450. Clague, J. J., 1969, The landslides in the southeast part of Point Reyes National Seashore: unpublished University of California at Berkeley M.A. thesis. Clark, J.C., and Brabb, E.E., 1997, Geology of Point Reyes National Seashore and vicinity: a digital database: U.S. Geological Survey Open-File Report 97-456. Clark, J. C., Wahrhaftig, Clyde, and Brabb, E. E., 1991, San Francisco to Point Reyes: Both sides of the San Andreas fault, in Sloan, D., and Wagner, D. L., eds., Geologic Excursions in Northern California: California Division of Mines and Geology, Special Publication 109, p. 11-23. Coleman, R.G., 1996, [abs.], Prospecting for ophiolites in the California continental margin: Eos, Transactions of the American Geophysical Union, v. 77, no. 46, p. 743. Coleman, R. G., and Lee, D. F., 1963, Glaucophane-bearing metamorphic rock types of the Cazadero area, California: Jour. Petrology, v. 4, pt. 2., p. 260-301. Crawford, K.E., 1976, Reconnaissance geologic map of the Eylar Mountain quadrangle, Santa Clara and Alameda Counties, California: U.S. Geological Survey Miscellaneous Field Studies Map MF-764, scale 1:24,000. Curry, F. B., Cox, Allan, and Engebretson, D. C., 1984, Paleomagnetism of Franciscan rocks in the Marin Headlands, in Blake, M. C., Jr., ed., Franciscan Geology of Northern California: Pacific Section S.E.P.M., Vol. 43, p. 89-98. Curtis, G. H., Evernden, J. F., and Lipson, J., 1958, Age determinations of some granitic rocks in California by the potassium-argon method: California Division of Mines Spec. Rpt. 54, 16 p. Drinkwater, J.L., Sorg, D.H., and Russell, P.C., 1992, Geologic map showing ages and mineralization of the Quien Sabe Volcanics, Mariposa Peak quadrangle, west-central California: U.S. Geological Survey Miscellaneous Field Studies Map MF-2200, 1 sheet, scale 1:24,000. Evarts, R.C., 1977, The geology and petrology of the Del Puerto ophiolite, Diablo Range, central California Coast Ranges, in Coleman, R.G., and Irwin, W.P., eds., North American ophiolites: Bulletin, Oregon Department of Geology and Mineral Industries, v. 95, p. 121-139. Fitzgibbon, T.T., 1991, ALACARTE installation and system manual (version 1.0): U.S. Geological Survey Open-File Report 91-587B. Fitzgibbon, T.T., and Wentworth, C.M., 1991, ALACARTE user interface - AML code and demonstration maps (version 1.0): U.S. Geological Survey Open-File Report 91-587A. Fox, K.F., Jr., Fleck, R.J., Curtis, G.H., and Meyer, C.E., 1985a, Implications of the northwestwardly younger age of the volcanic rocks of west central California: Geological Society of America Bulletin, v. 96, p. 647-654. Fox, K.F., Jr., Fleck, R.J., Curtis, G.H., and Meyer, C.E., 1985b, Potassium-argon and fission track ages of the Sonoma Volcanics in an area north of San Pablo Bay, California: U.S. Geological Survey Miscellaneous Field Studies Map MF-1753, 9 p., 1 sheet, scale 1:125,000. Galloway, A.J., 1966, Point Reyes Peninsula and San Andreas fault zone, in Bailey, E.H., ed., Geology of Northern California: California Division of Mines and Geology Bulletin 190, p. 429-440. Gluskoter, H. J., 1962, Geology of a portion of western Marin County, California: Unpublished Ph.D. thesis, University of California, Berkeley, CA, 184 p. Gluskoter, H. J., 1969, Geology of a portion of western Marin County, California: California Division of Mines Map Sheet 11, (1:48,000). Graymer, R.W., 1999, Offset history of the Hayward fault zone, San Francisco Bay region, California [abs.]: Geological Society of America Abstracts with Programs, v. Graymer, R.W., Jones, D.L., and Brabb, E.E., 1996, Preliminary geologic map emphasizing bedrock formations in Alameda County, California: A digital database: U.S. Geological Survey Open-File Report 96-252, includes plotfiles for 2 sheets, scale 1:75,000, database description pamphlet, 14 p., geologic description and interpretation pamphlet, 33 p. Graymer, R.W., Jones, D.L., and Brabb, E.E., 1999, Geology of the Cordelia and the northern part of the Benicia 7.5 minute quadrangles, California: A Digital Map Database: U.S. Geological Survey Open-File Report 99-162, includes plotfiles for one sheet, scale 1:24,000, database description pamphlet, 11 p., geologic description and interpretation pamphlet, 8 p. Grimsich, J.L., Scott, G.R., Swisher, C.C., III, and Curtis, G.H., 1996, Paleomagnetism and 40Ar/39Ar dating of the Miocene Contra Costa Group, Berkeley Hills, California [abs.]: EOS, Transactions, American Geophysical Union, v. 77, no. 46, p. 165. Gromme, Sherman, 1984, Paleomagnetism of Franciscan basalt, Marin County, California, revisited, in Blake, M. C., Jr., ed., Pacific Section S.E.P.M., Vol. 43, p. 113-119. Hagstrum, J. T., and Murchey, B. L., 1993, Deposition of Franciscan Complex cherts along the paleoequator and accretion to the American margin at tropical paleolatitudes: Geol Soc. America, Bull., v. 105, p. 766-778. Harms, T.A., Jayko, A.S., and Blake, M.C., Jr., 1992, Kinematic evidence for extensional unroofing of the Franciscan complex along the Coast Range fault, northern Diablo Range, California: Tectonics, v. 11, p. 228-241. Hart, E.W., and Bryant, W.A., 1997, Fault-rupture hazard zones in California: California Division of Mines and Geology Special Publication 42, revised 1997, 38 p. Irwin, W.P., 1973, Ophiolite belts in the Klamath Mountains: U.S. Geological Survey Professional Paper 850, 60 p. James, E. W., Kimbrough, D. L., and Mattinson, J. M., 1993, Evaluation of displacements of pre-Tertiary rocks on the northern San Andreas fault using U-Pb zircon dating, initial Sr, and common Pb isotopic ratios, in Powell, R. E., Weldon, R. J. II, and Matti, J. C., eds., The San Andreas fault system; displacement, palinspastic reconstructions, and geologic evolution: Geol. Soc. America Memoir 178, p. 257-271. Jayko, A. S., and Blake, M. C., Jr., 1984, Sedimentary petrology of graywacke of the Franciscan Complex in the northern San Francisco Bay Area, California, in Blake, M. C., Jr., ed., Franciscan Geology of Northern California: Pacific Section S.E.P.M., Vol. 43, p. 121-134. Jayko, A. S., and Blake, M. C., Jr., 1993, Northward displacement of forearc slivers in the Coast Ranges of California and southwest Oregon during the late Mesozoic and early Cenozoic,in Dunn, G., and McDougall, K., eds., 1993, Mesozoic Paleogeography of the Western United States-II, Pacific Section SEPM, Book 71, p. 19-36. Jones, D.L., 1987, Extensional faults in collisional settings; comparison of California and Japan [abs.]: Geological Society of America Abstracts with Programs, v. 19, no. 7, p. 720. Jones, D.L., and Curtis, G.H., 1991, Guide to the geology of the Berkeley Hills, central Coast Ranges, California, in Sloan, D., and Wagner, D.L., eds., Geologic Excursions in Northern California: San Francisco to the Sierra Nevada, California Division of Mines and Geology Special Publication 109, p. 63-74. Jones, D. L., Graymer, R. W., Wang, C., McEvilly, T. V., and Lomax, A, 1994, Neogene transpressive evolution of the California Coast Ranges: Tectonics, v. 13, p. 561-574. Karl, S. M., 1984, Sedimentologic, diagenetic, and geochemical analysis of Upper Mesozoic ribbon cherts from the Franciscan assemblage at the Marin Headlands, California, in Blake, M. C., Jr., ed., 1984, Franciscan Geology of Northern California: Pacific Section S.E.P.M., Vol. 43, p. 71-88. Krueger, S.W., and Jones, D.L., 1989, Extensional fault uplift of regional Franciscan blueschists due to subduction shallowing during the Laramide Orogeny: Geology, v. 17, p. 1157-1159. Lawson, A. C., 1914, Description of the San Francisco District: U. S. Geol. Survey Folio 193. Lawson, A.C., and others, 1908, The California earthquake of April 18, 1906--Report of the State Earthquake Investigation Commission: Carnegie Inst. Washington, Pub. 87, v. 1, 451 p. Leith, C.J., 1949, Geology of the Quien Sabe quadrangle: California: California Division of Mines Bulletin 147, 60 p. Lindquist, T.A., and Morganthaler, J.D., 1991, Radiometric ages of rocks in the San Francisco-San Jose quadrangles, California: Calif. Div. of Mines and Geol. Map No. 5, scale 1:250,000. McLaughlin, R. J., Sliter, W. V., Sorg, D. H., Russell, P. C., and Sarna-Wojcicki, A. M., 1996, Large-scale right-slip displacement on the East San Francisco Bay Region fault system: Implications for location of late Miocene to Pliocene Pacific plate boundary: Tectonics, v. 15, p. 1-18. Mankinen, E.A., 1972, Paleomagnetism and potassium-argon ages of the Sonoma Volcanics, California: Geological Society of America Bulletin, v. 83, p. 2063-2072. Morse, R.R., and Bailey, T.L., 1935, Geological observations in the Petaluma district, California: Geological Society of America Bulletin, v. 46, p. 1437-1456. Murchey, B. M., 1984, Stratigraphy and lithostratigraphy of chert in the Franciscan Complex, Marin Headlands, California, in Blake, M. C., Jr., ed., 1984, Franciscan Geology of Northern California: Pacific Section S.E.P.M., Vol. 43, p. 51-70. Murchey, B. M., and Blake, M. C., Jr., 1993, Evidence for subduction of a major ocean plate along the California margin during the Middle to early Late Jurassic, in Dunn, G., and McDougall, K., eds., Mesozoic Paleogeography of the Western United States-II, Pacific Section SEPM Book 71, p. 1-18. Murchey, B. M., and Jones, D. L., 1984, Age and significance of chert in the Franciscan Complex in the San Francisco Bay Region, in Blake, M. C., Jr., ed., Franciscan Geology of Northern California: Pacific Section S.E.P.M., Vol. 43, p. 23-30. Murray, R.W., Bucholtz-tenBrink, M.R., Jones, D.L., Gerlach, D.C., Russ, G.P., III, 1990, Rare earth elements as indicators of different marine depositional environments in chert and shale: Geology, v. 18, no. 3, p. 268-271. Nichols, D. R., and Wright, N. A., 1971, Preliminary map of historic margins of marshland, San Francisco Bay, California: U.S. Geol. Survey Open File Map (1:125,000). Osuch, L.T., 1970, Geology of the Three Sisters quadrangle, California: Berkeley, University of California, M.S. thesis, 55 p. O'Rourke, J. T., 1969, Geology of the San Anselmo Area: unpublished map, City of San Anselmo Planning Department, (1:480). Page, B.M., 1966, Geology of the Coast Ranges of California, in Bailey, E.H., ed., Geology of Northern California: California Division of Mines and Geology Bulletin 190, p. 255-276. ______1970, Time of completion of underthrusting of Franciscan beneath Great Valley rocks west of Salinian block, California: Geological Society of America Bulletin, v. 81, no. 9, p. 2825-2833. Radbruch, D. H., 1957, Areal and engineering geology of the Oakland west quadrangle, California: U.S. Geol. Survey Misc. Geol. Inv. Map I-239, scale 1:24,000. Ross, D. C., 1972, Petrographic and chemical reconnaissance study of some granitic and gneissic rocks near the San Andreas fault from Bodega Head to Cajon Pass, California: U.S. Geol. Survey Prof. Paper 698. Sarna-Wojcicki, A.M., 1976, Correlation of Late Cenozoic tuffs in the central Coast Ranges of California by means of trace- and minor-element chemistry: U.S. Geological Survey Professional Paper 972, 30 p. Schlocker, Julius, 1974, Geology of the San Francisco North Quadrangle, California: U. S. Geol. Survey Prof. Paper 782, 109 p. Schlocker, J., Bonilla, M. G., and Radbruch, D. H., 1958, Geology of the San Francisco North quadrangle, California: U.S. Geol. Survey Misc. Geol. Inv. Map I-272, scale 1:24,000. Shervais, J. V., 1989, Geochemistry of igneous rocks from Marin Headlands, in Wahrhaftig, C. and Sloan, D., eds., Geology of San Francisco and Vicinity: 28th International Geol. Congress Field Trip Guidebook T105, Amer. Geophys. Union, p. 40-41. Sliter, W. V., 1984, Foraminifers from Cretaceous limestone of the Franciscan Complex, northern California, in Blake, M. C., Jr., ed., Franciscan Geology of Northern California: Pacific Section S.E.P.M., Vol. 43, p. 149-162. Sliter, W. V., McDougall, Kristin, Murchey, B. M., and Kohnen, E. V., 1993, Mesozoic and Cenozoic microfossils from geologic units within the San Jose 1:100,000 quadrangle, California: U. S. Geol. Survey Open-File report 93-344, map scale 1: 100, 000. Swanson, S. E., and Schiffman, P., 1979, Textural evolution and metamorphism of pillow basalts from the Franciscan Complex, western Marin County, California: Contr. to Mineralogy and Petrology, v. 69, no. 3, p. 291-299. Taliaferro, N.L., 1948, Geologic map of the Hollister quadrangle, California: California Division of Mines Bulletin 143, scale 1:62,500. Tarduno, J. A., McWilliams, M., Debiche, M. G., Sliter, W. V., and Blake, M. C., Jr., 1985, Franciscan Complex Calera limestones--Accreted remnants of Farallon plate ocean plateaus: Nature, v. 317, p. 345- 347. Ver Planck, W. E., 1953, Mines, mineral resources and mineral industries of Marin Co., California: California Journal of Mines and Geology, v. 51, no. 3, p. 221-289. Wahrhaftig, Clyde, 1984, Structure of the Marin Headlands block, California: A progress report, in Blake, M. C., Jr., ed., 1984, Franciscan Geology of Northern California: Pacific Section S.E.P.M., Vol. 43, p. 31-50. Wakabayashi, John, 1992, Nappes, tectonics of oblique plate convergence, and metamorphic evolution related to 140 million years of continuous subduction, Franciscan Complex, California: Journal of Geology, v. 100, p. 19-40. Wentworth, C.M., Blake, M.C., Jr., Jones, D.L., Walter, A.W., and Zoback, M.D., 1984, Tectonic wedging associated with emplacement of the Franciscan Assemblage, California Coast Ranges, in , Blake, M.C., Jr., ed., Franciscan geology of Northern California: Pacific Section, Society of Economic Paleontologists and Mineralogists, Book 43, p. 163-174. Wentworth, C.M., Blake, M.C., Jr., McLaughlin, R.J., and Graymer, R.W., 1998a, Preliminary geologic map of the San Jose 30 X 60 minute quadrangle, California: A digital map image: U.S. Geological Survey Open-File Report 98-795, includes plotfiles for 2 sheets, scale 1:100,000, database description pamphlet, 6 pp, geologic description and interpretation pamphlet, 47 p. Wentworth, C. M., Jones, D. L., and Brabb, E. E., 1998b, Geology and regional correlation of the Cretaceous and Paleogene rocks of the Gualala block, California, in Elder, W.P., ed., Geology and tectonics of the Gualala block, Northern California: Pacific Section, Society of Economic Paleontologists and Mineralogists, Book 84, p. 3-26. Wright, R.H., 1974, Map showing the distribution of potassium feldspar and fossils in Mesozoic rocks of Marin and San Francisco Counties, and parts of Alameda, Contra Costa, and Sonoma Counties, California: U.S. Geological Survey Miscellaneous Field Studies Map MF-573, 1 sheet, scale 1:125,000. Wright, R.H., 1984, Geology of the Nicasio Reservoir terrane, Marin County, California, in Blake, M.C., Jr., ed., Franciscan geology of Northern California: Pacific Section, Society of Economic Paleontologists and Mineralogists, Book 43, p. 99-111. Youngman, M.R., 1986, K-Ar and 40Ar/39Ar geochronology, geochemistry, and structural reinterpretation of the southern Sonoma Volcanic field, Sonoma County, California: Berkeley, University of California, M.S. thesis, 92 p., 1 plate. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1999 Currentness_Reference: The date given is the publication date. The information in the report is the most up-to-date available at the time of publication. Status: Progress: Pre-Publication Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -122.9902372 East_Bounding_Coordinate: -122.24855051 North_Bounding_Coordinate: 38.2626288 South_Bounding_Coordinate: 37.73826442 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: structural geology Theme_Keyword: stratigraphy Theme_Keyword: faulting (geologic) Theme_Keyword: folding (geologic) Theme_Keyword: geologic maps Theme_Keyword: bedrock geologic units Theme_Keyword: surficial geologic units Theme_Keyword: geospatial datasets Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Categories Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: none Theme_Keyword: geology Theme_Keyword: bedrock geology Theme_Keyword: surficial geology Theme_Keyword: geologic history Theme_Keyword: Franciscan complex Theme_Keyword: Coast Range ophiolite Theme_Keyword: Great Valley complex Theme_Keyword: terranes Theme_Keyword: geologic structures Theme_Keyword: Hayward fault Theme_Keyword: Rodgers Creek fault Theme_Keyword: Tolay fault Theme_Keyword: San Andreas fault Theme_Keyword: Miocene volcanics Theme_Keyword: Sonoma Volcanics Theme_Keyword: fault offset Place: Place_Keyword_Thesaurus: none Place_Keyword: United States of America Place_Keyword: California Place_Keyword: Marin County Place_Keyword: San Francisco County Place_Keyword: Alameda County Place_Keyword: Contra Costa County Place_Keyword: Sonoma County Stratum: Stratum_Keyword_Thesaurus: None Stratum_Keyword: Artificial fill Stratum_Keyword: Artificial fill over marine and marsh deposits Stratum_Keyword: Beach sand Stratum_Keyword: Dune sand Stratum_Keyword: Marine and marsh deposits Stratum_Keyword: Landslide deposits Stratum_Keyword: Alluvium Stratum_Keyword: Slope debris and ravine fill Stratum_Keyword: Undifferentiated surficial deposits Stratum_Keyword: Volcanic gravel Stratum_Keyword: Older beach deposits Stratum_Keyword: Older alluvium Stratum_Keyword: Marine and stream terrace deposits Stratum_Keyword: Millerton Formation Stratum_Keyword: Colma Formation Stratum_Keyword: Merced Formation Stratum_Keyword: Wilson Grove Formation Stratum_Keyword: Petaluma Formation Stratum_Keyword: Siltstone and claystone member Stratum_Keyword: Gray claystone member Stratum_Keyword: Sonoma Volcanics Stratum_Keyword: Rhyolite lava flows Stratum_Keyword: Rhyolite plugs and dikes Stratum_Keyword: Andesite to basalt lava flows Stratum_Keyword: Pumiceous ash flow tuff Stratum_Keyword: Unnamed sandstone Stratum_Keyword: Monterey Shale Stratum_Keyword: Franciscan Complex Stratum_Keyword: Sandstone and shale Stratum_Keyword: Massive sandstone Stratum_Keyword: Thin-bedded shale Stratum_Keyword: Limestone and chert Stratum_Keyword: Greenstone Stratum_Keyword: Chert Stratum_Keyword: Graywacke Stratum_Keyword: Diabase Stratum_Keyword: Metagraywacke Stratum_Keyword: Chert Stratum_Keyword: Greenstone and chert Stratum_Keyword: Greenstone Stratum_Keyword: Meta-greenstone Stratum_Keyword: Metachert Stratum_Keyword: Meta-greenstone and metachert Stratum_Keyword: Greenstone Stratum_Keyword: Metamorphic rocks, gneissic Stratum_Keyword: Massive serpentinite Stratum_Keyword: Melange Stratum_Keyword: Great Valley Complex Stratum_Keyword: Undivided sandstone, shale, and conglomerate Stratum_Keyword: Novato Conglomerate Stratum_Keyword: Sandstone and claystone Stratum_Keyword: Serpentinite Stratum_Keyword: Silica-carbonate rock Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: Mesozoic Temporal_Keyword: Jurassic Temporal_Keyword: Cretaceous Temporal_Keyword: Cenozoic Temporal_Keyword: Tertiary Temporal_Keyword: Neogene Temporal_Keyword: Miocene Temporal_Keyword: Pliocene Temporal_Keyword: Quaternary Temporal_Keyword: Pleistocene Temporal_Keyword: Holocene Theme: Theme_Keyword_Thesaurus: National Geologic Map Database Catalog themes, augmented Theme_Keyword: 1100 - Geology Theme_Keyword: 1101 - General Place: Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4 Place_Keyword: f06041 = Marin Place_Keyword: f06001 = Alameda Place_Keyword: f06013 = Contra Costa Place_Keyword: f06075 = San Francisco Place_Keyword: f06097 = Sonoma Access_Constraints: None Use_Constraints: Uses of this digital geologic map should not violate the spatial resolution of the data. Although the digital form of the data removes the constraint imposed by the scale of a paper map, the detail and accuracy inherent in map scale are also present in the digital data. The fact that this database was edited for a scale of 1:62,500 means that higher resolution information is not present in the dataset. Plotting at scales larger than 1:62,500 will not yield greater real detail, although it may reveal fine-scale irregularities below the intended resolution of the database. Similarly, where this database is used in combination with other data of higher resolution, the resolution of the combined output will be limited by the lower resolution of these data. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: USGS Western Geologic Mapping Team Contact_Person: Database coordinator Contact_Address: Address_Type: mailing address Address: 345 Middlefield Road, MS 975 City: Menlo Park State_or_Province: CA Postal_Code: 94025 Country: USA Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/mf/2000/2337/images/mf2337h.jpg Browse_Graphic_File_Description: Image of entire map Browse_Graphic_File_Type: JPEG Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/mf/2000/2337/mf2337f.pdf Browse_Graphic_File_Description: A PDF representation of the geologic map and base maps at a scale of 1:62,500 (Sheet 1). 4.6 megabytes. Browse_Graphic_File_Type: PDF Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/mf/2000/2337/mf2337g.pdf Browse_Graphic_File_Description: A PDF representation of the pamphlet accompanying the map, which contains textual and diagrammatic explanations of the geology, the map, and the database. 140 kilobytes. Browse_Graphic_File_Type: PDF Data_Set_Credit: We would like to acknowledge our many colleagues at the USGS, University of California, and Stanford University for their many contributions over the years. We would especially like to acknowledge R.C. Jachens and E.E. Brabb for many organizational efforts, participation in the new mapping, ideas about regional structure, and insightful review of our draft manuscript. We are grateful to the following U.S. Geological Survey paleontologists who have examined our fossils and provided ages necessary to establish the stratigraphic sequence and structure: David Bukry (Cretaceous and Tertiary nannoplankton), Kristin McDougall (Tertiary foraminifers), William Sliter (deceased - Cretaceous and Eocene foraminifers), John Barron (Tertiary diatoms), Charles Powell, II (Tertiary mollusks), and Bonita Murchey (Mesozoic radiolaria). We are also very grateful to managers and staff of Chevron, EXXON, UNOCAL, ARCO, and Shell Petroleum Companies who have provided reports, maps, picked slides, and residues for about 25,000 microfossil localities in the San Francisco Bay Region. Native_Data_Set_Environment: SunOS, 5.5.1, sun4u UNIX, ARC/INFO version 7.2.1 Data_Quality_Information: Logical_Consistency_Report: Polygon and chain-node topology present Completeness_Report: The report is intended to describe completely the bedrock geology at 1:62,500 scale. Geologic information only mappable at larger scale has been omitted. In addition, landslide deposits are for the most part not recorded. Further, Quaternary surficial deposits in many areas have been intentionally undifferentiated. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Well located data items are intended to have a horizontal positional accuracy within .2 mm at 1:62,500 scale, or within 12.5 meters on the ground. The general positional accuracy of each line in the database is indicated within the LTYPE field in the Arc Attribute Table (see below). Points in the database are generally considered to be well located. The position of each data item is derived from the USGS topographic base map, and therefore additional inaccuracies arising from inaccuracies in the base map may also be encountered. See Aitken (1997) for information regarding the horizontal positional accuracy of the basemaps. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: No vertical positional data recorded. See Aitken (1997) for information regarding the vertical positional accuracy of the basemaps used to create the plotfiles of the geologic maps. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Fox, K.F., Jr Title: unpublished geologic map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1971 Source_Currentness_Reference: date of mapping Source_Citation_Abbreviation: Fox, unpublished Source_Contribution: Source map for region 1 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Brown, R.D., Jr Publication_Date: 1970 Title: Faults that are historically active or that show evidence of geologically young surface displacement, San Francisco Bay Region: A progress report Series_Information: Series_Name: U.S. Geological Survey Open-File Report Source_Scale_Denominator: 250000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1970 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Brown, 1970 Source_Contribution: Source map for region 1 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Weaver Publication_Date: 1949 Title: (Weaver, 1949, region 2) Source_Scale_Denominator: 62500 Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1949 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: (Weaver, 1949, region 2) Source_Contribution: Source map for region 2 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Louke, G. Publication_Date: unpublished Title: unpublished geologic investigations Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1968 Ending_Date: 1970 Source_Currentness_Reference: date of mapping Source_Citation_Abbreviation: Louke, unpublished (region 2) Source_Contribution: Source map for region 2 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Bartow, J.A. Title: unpublished photogeology and field reconnaissance Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1972 Source_Currentness_Reference: date of study Source_Citation_Abbreviation: Bartow, unpublished Source_Contribution: Source map for region 2 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Nichols, D.R. Originator: Wright, N.A. Publication_Date: 1971 Title: Preliminary map of historic margins of marshland, San Francisco Bay, California Series_Information: Series_Name: U.S. Geological Survey Open-File Report Source_Scale_Denominator: 125,000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1971 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Nichols and Wright, 1971 Source_Contribution: Source map for region 3 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Rose, R.L. Title: unpublished geologic investigations Type_of_Source_Media: paper Source_Citation_Abbreviation: Rose, unpublished Source_Contribution: Source map for region 4 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Bartow, J.A Title: unpublished geologic investigations Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1970 Source_Currentness_Reference: date of study Source_Citation_Abbreviation: Bartow, unpublished (region 4) Source_Contribution: Source map for region 4 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Blake, M.C., Jr. Originator: Wright, R.H. Title: unpublished geologic investigations Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1970 Ending_Date: 1971 Source_Currentness_Reference: date of study Source_Citation_Abbreviation: Blake and Write, unpublished (region 4) Source_Contribution: Source map for region 4 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Wentworth, C.M. Title: unpublished photogeology Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1971 Source_Currentness_Reference: date of study Source_Citation_Abbreviation: Wentworth, unpublished (region 4) Source_Contribution: Source map for region 4 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Berkland, J.O. Publication_Date: 1969 Title: Geology of the Novato quadrangle, Marin County, California Source_Scale_Denominator: 24000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1969 Source_Currentness_Reference: date of publication Source_Citation_Abbreviation: Berkland, 1969 Source_Contribution: Source map for region 5 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Berkland, J.O. Title: unpublished geologic investigations Type_of_Source_Media: paper Source_Citation_Abbreviation: Berkland, unpublished (region 5a) Source_Contribution: Source map for region 5a (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: O'Rourke, J.T. Publication_Date: 1969 Title: Geology of the San Anselmo Area Source_Scale_Denominator: 480 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1969 Source_Currentness_Reference: date of study Source_Citation_Abbreviation: O'Rourke, 1969 Source_Contribution: Source map for region 6 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Blake, M.C., Jr. Originator: Wright, R.H. Title: minor unpublished geologic investigations Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1971 Source_Currentness_Reference: date of study Source_Citation_Abbreviation: Blake and Wright, unpublished (region 6) Source_Contribution: Source map for region 6 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Rice, S. Title: unpublished geologic investigations Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1970 Ending_Date: 1971 Source_Currentness_Reference: date of study Source_Citation_Abbreviation: Rice, unpublished (region 7) Source_Contribution: Source map for region 7 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Wahrhaftig, C. Publication_Date: 1984 Title: Structure of the Marin Headlands block, California: A progress report Series_Information: Series_Name: Pacific Section, SEPM Issue_Identification: 43 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1984 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wahrhaftig, 1984 Source_Contribution: Source map for region 7 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Wahrhaftig, C. Publication_Date: 1989 Title: (Wahrhaftig, 1989, region 7) Source_Citation_Abbreviation: Wahrhaftig, 1989 Source_Contribution: Source map for region 7 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Blake, M.C., Jr. Originator: Wright, R.H. Title: minor unpublished geologic investigations Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1970 Ending_Date: 1971 Source_Currentness_Reference: date of study Source_Citation_Abbreviation: Blake and Wright, unpublished (region 7) Source_Contribution: Source map for region 7 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Schlocker, J. Title: unpublished geologic investigations Type_of_Source_Media: paper Source_Citation_Abbreviation: Schlocker, unpublished (region 8) Source_Contribution: Source map for region 8 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Wahrhaftig, C. Publication_Date: 1984 Title: Structure of the Marin Headlands block, California: A progress report Series_Information: Series_Name: Pacific Section, SEPM Issue_Identification: 43 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1984 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wahrhaftig, 1984 Source_Contribution: Source map for region 8 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Wahrhaftig, C. Publication_Date: 1989 Title: (Wahrhaftig, 1989, region 8) Source_Citation_Abbreviation: Wahrhaftig, 1989 Source_Contribution: Source map for region 8 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Galloway, A.J. Title: Geology of the Point Reyes Peninsula, Marin County, California Series_Information: Series_Name: California Division of Mines and Geology Special Report Type_of_Source_Media: paper Source_Citation_Abbreviation: Galloway, CA DM Spec. Rpt. Source_Contribution: Source map for region 9 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Gluskoter, H. J. Publication_Date: 1969 Title: Geology of a portion of western Marin County, California Series_Information: Series_Name: California Division of Mines and Geology Map Issue_Identification: 11 Source_Scale_Denominator: 48000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1969 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Gluskoter, 1969 Source_Contribution: Source map for region 9 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Bartow Title: unpublished geologic investigation Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1970 Ending_Date: 1971 Source_Currentness_Reference: date of study Source_Citation_Abbreviation: Bartow, unpublished (region 9) Source_Contribution: Source map for region 9 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Clague, J. J. Publication_Date: 1969 Title: The landslides in the southeast part of Point Reyes National Seashore Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1969 Source_Currentness_Reference: thesis date Source_Citation_Abbreviation: Clague, 1969 Source_Contribution: Source map for region 10 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Wright, R.H. Originator: Blake, M.C., Jr. Title: unpublished geologic investigations Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1970 Ending_Date: 1971 Source_Currentness_Reference: date of study Source_Citation_Abbreviation: Wright and Blake, unpublished (region 11) Source_Contribution: Source map for region 11 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Sorg, D. Title: unpublished geologic investigations Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1971 Source_Currentness_Reference: date of study Source_Citation_Abbreviation: Sorg, unpublished (region 12) Source_Contribution: Source map for region 12 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Gluskoter, H. J. Publication_Date: 1969 Title: Geology of a portion of western Marin County, California Series_Information: Series_Name: California Division of Mines and Geology Map Issue_Identification: 11 Source_Scale_Denominator: 48000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1969 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Gluskoter, 1969 Source_Contribution: Source map for region 12 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Wright, R.H. Originator: Blake, M.C., Jr. Title: unpublished geologic investigations Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1970 Ending_Date: 1971 Source_Currentness_Reference: date of study Source_Citation_Abbreviation: Wright and Blake, unpublished (region 12) Source_Contribution: Source map for region 12 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Gluskoter, H. J. Publication_Date: 1969 Title: Geology of a portion of western Marin County, California Series_Information: Series_Name: California Division of Mines and Geology Map Issue_Identification: 11 Source_Scale_Denominator: 48000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1969 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Gluskoter, 1969 Source_Contribution: Source map for region 13 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Wahrhaftig, C. Publication_Date: 1970 Title: (Wahrhaftig, 1970, region 13) Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1970 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wahrhaftig, 1970 Source_Contribution: Source map for region 13 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Wright, R.H. Originator: Blake, M.C., Jr. Title: unpublished geologic investigations Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1970 Ending_Date: 1971 Source_Currentness_Reference: date of study Source_Citation_Abbreviation: Wright and Blake, unpublished (region 13) Source_Contribution: Source map for region 13 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Brown, R.D. Originator: Wolfe, E.W. Publication_Date: 1970 Title: Map showing recently active breaks along the San Andreas fault between Pt. Delgada and Bolinas Bay, California Series_Information: Series_Name: U.S. Geological Survey Open-File Report Source_Scale_Denominator: 48000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1970 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Brown and Wolfe, 1970 Source_Contribution: Source map for region 14 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Bartow, J.A. Title: field reconnaissance Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1971 Source_Currentness_Reference: date of study Source_Citation_Abbreviation: Bartow, unpublished (region 15) Source_Contribution: Source map for region 15 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Wright, R.H. Originator: Blake, M.C., Jr. Title: unpublished geologic investigations Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1970 Ending_Date: 1971 Source_Currentness_Reference: date of study Source_Citation_Abbreviation: Wright and Blake, unpublished (region 15) Source_Contribution: Source map for region 15 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Weaver Publication_Date: 1949 Title: (Weaver, 1949, region 16) Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1949 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Weaver, 1949 Source_Contribution: Source map for region 16 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Blake, M.C., Jr. Originator: Wright, R.H. Title: unpublished geologic investigations Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1970 Source_Currentness_Reference: date of study Source_Citation_Abbreviation: Blake and Wright, unpublished (region 16) Source_Contribution: Source map for region 16 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Blake, M.C., Jr. Title: unpublished geologic investigations Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1971 Source_Currentness_Reference: date of study Source_Citation_Abbreviation: Blake, unpublished (region 16) Source_Contribution: Source map for region 16 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Lawson, A. C. Publication_Date: 1914 Title: San Francisco Folio Series_Information: Series_Name: U.S. Geological Survey Atlas Folio Issue_Identification: 193 Source_Scale_Denominator: 62500 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1914 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Lawson, 1914 Source_Contribution: Source map for region 17 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Blake, M.C., Jr. Originator: Wright, R.H. Title: unpublished geologic investigations Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1970 Ending_Date: 1971 Source_Currentness_Reference: date of study Source_Citation_Abbreviation: Blake and Wright, unpublished (region 17) Source_Contribution: Source map for region 17 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Schlocker, J. Originator: Bonilla, M. G. Originator: Radbruch, D. H. Publication_Date: 1958 Title: Geology of the San Francisco North quadrangle, California Series_Information: Series_Name: U.S. Geological Survey Miscellaneous Investigations Series Map Issue_Identification: I-272 Source_Scale_Denominator: 24000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1958 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Schlocker, Bonilla, and Radbruch, 1958 Source_Contribution: Source map for region 18 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Blake, M.C., Jr. Title: unpublished geologic investigations Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1971 Source_Currentness_Reference: date of study Source_Citation_Abbreviation: Blake, unpublished (region 18) Source_Contribution: Source map for region 18 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Alfors, J. Title: unpublished geologic investigations Type_of_Source_Media: paper Source_Citation_Abbreviation: Alfors, unpublished (region 19) Source_Contribution: Source map for region 19 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Rice, S. Title: unpublished geologic investigations Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1970 Source_Currentness_Reference: date of study Source_Contribution: Source map for region 19 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Blake, M.C., Jr. Title: unpublished geologic investigations Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1971 Source_Currentness_Reference: date of study Source_Contribution: Source map for region 19 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Brown, R.D. Originator: Wolfe, E.W. Publication_Date: 1970 Title: Map showing recently active breaks along the San Andreas fault between Pt. Delgada and Bolinas Bay, California Series_Information: Series_Name: U.S. Geological Survey Open-File Report Source_Scale_Denominator: 48000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1970 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Brown and Wolfe, 1970 Source_Contribution: Source map for region 20 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Blake, M.C., Jr. Originator: Helley, E.J. Originator: Lajoie, K.R. Title: unpublished geologic investigations Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1971 Source_Currentness_Reference: date of study Source_Contribution: Source map for region 20 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Radbruch, D.H. Publication_Date: 1957 Title: Areal and engineering geology of the Oakland west quadrangle, California Series_Information: Series_Name: U.S. Geological Survey Miscellaneous Investigations Series Map Issue_Identification: I-239 Source_Scale_Denominator: 24000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1957 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Radbruch, 1957 Source_Contribution: Source map for region 21 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Blake, M.C., Jr. Title: unpublished geologic investigations Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1971 Source_Currentness_Reference: date of study Source_Contribution: Source map for region 21 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Gluskoter, H. J. Publication_Date: 1969 Title: Geology of a portion of western Marin County, California Series_Information: Series_Name: California Division of Mines and Geology Map Issue_Identification: 11 Source_Scale_Denominator: 48000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1969 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Gluskoter, 1969 Source_Contribution: Source map for region 22 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Blake, M.C., Jr. Originator: Wright, R.H. Title: unpublished geologic investigations Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1970 Source_Currentness_Reference: date of study Source_Contribution: Source map for region 22 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Blake, M.C., Jr. Title: unpublished geologic investigations Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1971 Source_Currentness_Reference: date of study Source_Contribution: Source map for region 22 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Source_Information: Source_Citation: Citation_Information: Originator: Bonilla, M. G. Publication_Date: 1971 Title: Preliminary geolgic map of the San Francisco South quadrangle and part of the Hunters Point quadrangle, California Series_Information: Series_Name: U.S. Geological Survey Miscellaneous Field Studies Map Issue_Identification: MF-311 Source_Scale_Denominator: 24000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1971 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Bonilla, 1971 Source_Contribution: Source map for region 23 (see coverage ma-so or Sheet 2 plotfile maexpl.ps or maexpl.pdf) Process_Step: Process_Description: Creation of original metadata record Process_Date: 20000315 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: R.W. Graymer Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: Mailing Address: 345 Middlefield Rd., M/S 975 City: Menlo Park State_or_Province: CA Postal_Code: 94025 Country: USA Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 3123 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 6813 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 3124 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Lambert Conformal Conic Lambert_Conformal_Conic: Standard_Parallel: 37.06666666666 Standard_Parallel: 38.43333333333 Longitude_of_Central_Meridian: -120.5 Latitude_of_Projection_Origin: 36.5 False_Easting: 0.00000 False_Northing: 0.00000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 1.0 Ordinate_Resolution: 1.0 Planar_Distance_Units: METERS Geodetic_Model: Horizontal_Datum_Name: Unknown Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.98 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: MA-GEOL.PAT Entity_Type_Definition: polygon attribute table Entity_Type_Definition_Source: ARC/INFO Attribute: Attribute_Label: PTYPE Attribute_Definition: Labels of geologic units and areas of water. Attribute_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qaf Enumerated_Domain_Value_Definition: Artificial fill Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qmf Enumerated_Domain_Value_Definition: Artificial fill over marine and marsh deposits Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qs Enumerated_Domain_Value_Definition: Beach sand Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qd Enumerated_Domain_Value_Definition: Dune sand Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qm Enumerated_Domain_Value_Definition: Marine and marsh deposits Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qls Enumerated_Domain_Value_Definition: Landslide deposits Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qal Enumerated_Domain_Value_Definition: Alluvium Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qsr Enumerated_Domain_Value_Definition: Slope debris and ravine fill Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qu Enumerated_Domain_Value_Definition: Undifferentiated surficial deposits Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qr Enumerated_Domain_Value_Definition: Volcanic gravel Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qob Enumerated_Domain_Value_Definition: Older beach deposits Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qoal Enumerated_Domain_Value_Definition: Older alluvium Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qoal? Enumerated_Domain_Value_Definition: Older alluvium, identification uncertain Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qt Enumerated_Domain_Value_Definition: Marine and stream terrace deposits Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qmi Enumerated_Domain_Value_Definition: Millerton Formation Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qc Enumerated_Domain_Value_Definition: Colma Formation Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: QTm Enumerated_Domain_Value_Definition: Merced Formation Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Twg Enumerated_Domain_Value_Definition: Wilson Grove Formation Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tps Enumerated_Domain_Value_Definition: Petaluma Formation, siltstone and claystone member Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tpc Enumerated_Domain_Value_Definition: Petaluma Formation, gray claystone member Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tsv Enumerated_Domain_Value_Definition: Sonoma Volcanics Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tsr Enumerated_Domain_Value_Definition: Sonoma Volcanics, rhyolite lava flows Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tsri Enumerated_Domain_Value_Definition: Sonoma Volcanics, rhyolite plugs and dikes Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tsa Enumerated_Domain_Value_Definition: Sonoma Volcanics, andesite to basalt lava flows Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tsa? Enumerated_Domain_Value_Definition: Sonoma Volcanics, andesite to basalt lava flows, identification uncertain Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tst Enumerated_Domain_Value_Definition: Sonoma Volcanics, pumiceous ash flow tuff Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ts Enumerated_Domain_Value_Definition: Unnamed sandstone Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tm Enumerated_Domain_Value_Definition: Monterey shale Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kfs Enumerated_Domain_Value_Definition: Franciscan complex, sandstone and shale Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kfs? Enumerated_Domain_Value_Definition: Franciscan complex, sandstone and shale, identification uncertain Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kfss Enumerated_Domain_Value_Definition: Franciscan complex, massive sandstone Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kfsh Enumerated_Domain_Value_Definition: Franciscan complex, thin-bedded shale Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kfl Enumerated_Domain_Value_Definition: Franciscan complex, limestone and chert Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kfg Enumerated_Domain_Value_Definition: Franciscan complex, greenstone Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kfch Enumerated_Domain_Value_Definition: Franciscan complex, chert Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kfgwy Enumerated_Domain_Value_Definition: Franciscan complex, graywacke Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kfdb Enumerated_Domain_Value_Definition: Franciscan complex, diabase Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: KJfm Enumerated_Domain_Value_Definition: Franciscan complex, meta-graywacke Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: KJfch Enumerated_Domain_Value_Definition: Franciscan complex, chert Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: KJfgc Enumerated_Domain_Value_Definition: Franciscan complex, greenstone and chert Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Jfg Enumerated_Domain_Value_Definition: Franciscan complex, greenstone Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Jfmgs Enumerated_Domain_Value_Definition: Franciscan complex, meta-greenstone Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Jfmch Enumerated_Domain_Value_Definition: Franciscan complex, metachert Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Jfmgc Enumerated_Domain_Value_Definition: Franciscan complex, meta-greenstone and metachert Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Jfgs Enumerated_Domain_Value_Definition: Franciscan complex, greenstone Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Jfmg Enumerated_Domain_Value_Definition: Franciscan complex, metamorphic rocks, gneissic Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Jspm Enumerated_Domain_Value_Definition: Franciscan complex, massive serpentinite Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fsr Enumerated_Domain_Value_Definition: Franciscan complex, melange Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: KJgv Enumerated_Domain_Value_Definition: Great Valley complex, undivided sandstone, shale, and conglomerate Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kgvn Enumerated_Domain_Value_Definition: Great Valley complex, Novato Conglomerate Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: KJgvs Enumerated_Domain_Value_Definition: Great Valley complex, sandstone and claystone Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: sp Enumerated_Domain_Value_Definition: Great Valley complex, serpentinite Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: sc Enumerated_Domain_Value_Definition: Great Valley complex, silica-carbonate rock Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: water Enumerated_Domain_Value_Definition: water Enumerated_Domain_Value_Definition_Source: author Detailed_Description: Entity_Type: Entity_Type_Label: MA-GEOL.AAT Entity_Type_Definition: arc attribute table Entity_Type_Definition_Source: ARC/INFO Attribute: Attribute_Label: LTYPE Attribute_Definition: The type of lines used in the geology layer. Includes all faults, as well as lines bounding polygons that define geologic units. Attribute_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: contact, approx. located Enumerated_Domain_Value_Definition: Boundary between two mapped units that retains the original depositional or intrusive relationship (i.e. not faulted). The contact has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 2 mm at map scale (1:62,500) or within about 125 meters on the ground. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: contact, certain Enumerated_Domain_Value_Definition: Boundary between two mapped units that retains the original depositional or intrusive relationship (i.e. not faulted). The contact has been observed, so it is well-located as described in Positional_Accuracy. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: contact, concealed Enumerated_Domain_Value_Definition: Boundary between two mapped units that retains the original depositional or intrusive relationship (i.e. not faulted). The contact is obscured by overlying mapped units, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 2 mm at map scale (1:62,500) or within about 125 meters on the ground. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: contact, uncertain Enumerated_Domain_Value_Definition: Boundary between two mapped units that retains the original depositional or intrusive relationship (i.e. not faulted). The contact has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 10 mm at map scale (1:62,500) or within about 625 meters on the ground. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, active Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced and continues to experience relative offset between the rock bodies on either side of the fault. The fault has been observed, so it is well-located as described in Positional_Accuracy. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, active, approx. located Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced and continues to experience relative offset between the rock bodies on either side of the fault. The contact has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 2 mm at map scale (1:62,500) or within about 125 meters on the ground. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, approx. located Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced relative offset between the rock bodies on either side of the fault. The contact has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 2 mm at map scale (1:62,500) or within about 125 meters on the ground. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, certain Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced relative offset between the rock bodies on either side of the fault. The fault has been observed, so it is well-located as described in Positional_Accuracy. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, concealed Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced relative offset between the rock bodies on either side of the fault. The fault is obscured by overlying mapped units, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 10 mm at map scale (1:62,500) or within about 625 meters on the ground. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, inferred, queried Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced relative offset between the rock bodies on either side of the fault. The fault has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 10 mm at map scale (1:62,500) or within about 625 meters on the ground. The existence of the fault is inferred from structural and stratigraphic relationships observed elsewhere. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, uncertain Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced relative offset between the rock bodies on either side of the fault. The fault has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 10 mm at map scale (1:62,500) or within about 625 meters on the ground. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: map boundary, Enumerated_Domain_Value_Definition: Edge of the mapped area. Used primarily to bound polygons at the edge of the map database. The location of the boundary is well located as described in Positional_Accuracy Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: normal fault, approx. located Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced normal offset between the rock bodies on either side of the fault. The contact has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 2 mm at map scale (1:62,500) or within about 125 meters on the ground. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: normal fault, certain Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced normal offset between the rock bodies on either side of the fault. The fault has been observed, so it is well-located as described in Positional_Accuracy. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: normal fault, concealed Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced normal offset between the rock bodies on either side of the fault. The fault is obscured by overlying mapped units, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 10 mm at map scale (1:62,500) or within about 625 meters on the ground. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: normal fault, uncertain Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced normal offset between the rock bodies on either side of the fault. The fault has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 10 mm at map scale (1:62,500) or within about 625 meters on the ground. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: scratch boundary, Enumerated_Domain_Value_Definition: An arbitrary line with no geologic significance. Used primarily to divide polygons that would otherwise have more vertices than allowed by Arc/Info. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: scratch boundary, certain Enumerated_Domain_Value_Definition: An arbitrary line with no geologic significance. Used primarily to divide polygons that would otherwise have more vertices than allowed by Arc/Info. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: thrust fault, approx. located Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced thrust offset between the rock bodies on either side of the fault. The contact has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 2 mm at map scale (1:62,500) or within about 125 meters on the ground. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: thrust fault, certain Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced thrust offset between the rock bodies on either side of the fault. The fault has been observed, so it is well-located as described in Positional_Accuracy. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: thrust fault, concealed Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced thrust offset between the rock bodies on either side of the fault. The fault is obscured by overlying mapped units, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 10 mm at map scale (1:62,500) or within about 625 meters on the ground. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: thrust fault, concealed, queried Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced thrust offset between the rock bodies on either side of the fault. The fault is obscured by overlying mapped units, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 10 mm at map scale (1:62,500) or within about 625 meters on the ground. The existence of this fault has been inferred from probable stratigraphic and structural relationships observed at a regional scale. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: thrust fault, inferred Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced thrust offset between the rock bodies on either side of the fault. The fault has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 10 mm at map scale (1:62,500) or within about 625 meters on the ground. The existence of the fault is inferred from structural and stratigraphic relationships observed elsewhere. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: thrust fault, inferred, queried Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced thrust offset between the rock bodies on either side of the fault. The fault has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 10 mm at map scale (1:62,500) or within about 625 meters on the ground. The existence of this fault has been inferred from probable stratigraphic and structural relationships observed at a regional scale. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: thrust fault, uncertain Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced thrust offset between the rock bodies on either side of the fault. The fault has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 10 mm at map scale (1:62,500) or within about 625 meters on the ground. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: water boundary Enumerated_Domain_Value_Definition: The edge of a mapped body of water. This line is derived from the base map, and therefore is well-located as described in Positional_Accuracy. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: water boundary, Enumerated_Domain_Value_Definition: The edge of a mapped body of water. This line is derived from the base map, and therefore is well-located as described in Positional_Accuracy. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: water boundary, certain Enumerated_Domain_Value_Definition: The edge of a mapped body of water. This line is derived from the base map, and therefore is well-located as described in Positional_Accuracy. Enumerated_Domain_Value_Definition_Source: author Detailed_Description: Entity_Type: Entity_Type_Label: MA-STRC.PAT Entity_Type_Definition: Attribute table of MA-STRC. Entity_Type_Definition_Source: ARC/INFO Attribute: Attribute_Label: PTTYPE Attribute_Definition: The type of planar feature which was observed and the orientation of which was measured at this point. Attribute_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: approx bedding Enumerated_Domain_Value_Definition: Originally horizontal sedimentary layers were observed at this point. Because of poor exposure, weathering, indistinct layering, or some other factor, only the approximate orientation of the layers was measured. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: bedding Enumerated_Domain_Value_Definition: Originally horizontal sedimentary layers were observed at this point. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: bedding w/tops Enumerated_Domain_Value_Definition: Originally horizontal sedimentary layers were observed at this point. In addition, a geopedal indicator was observed that showed the beds were upright. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault dip Enumerated_Domain_Value_Definition: A fault plane or other evidence of the orientation of a fault plane was observed at this point. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: foliation Enumerated_Domain_Value_Definition: Metamorphic foliation was observed at this point. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: ot bedding Enumerated_Domain_Value_Definition: Originally horizontal sedimentary layers were observed at this point. Evidence that the beds are overturned was observed, although that observation may not have been made at this point. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: pillow lava Enumerated_Domain_Value_Definition: Originally sub-horizontal lobate structures formed in sub-aqueous lava flows were observed at this point. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: vert bedding Enumerated_Domain_Value_Definition: Originally horizontal sedimentary layers were observed at this point. These layers are now vertical. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: vert foliation Enumerated_Domain_Value_Definition: Vertical metamorphic foliation was observed at this point. Enumerated_Domain_Value_Definition_Source: author Attribute: Attribute_Label: DIP Attribute_Definition: The inclination of planar structures measured in degrees down from horizontal. Attribute_Definition_Source: author Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 90 Attribute_Units_of_Measure: degrees Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: STRIKE Attribute_Definition: The orientation of a horizontal line in an inclined planar structure measured in degrees clockwise from north. Attribute_Definition_Source: author Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 359 Attribute_Units_of_Measure: degrees Attribute_Measurement_Resolution: 1 Detailed_Description: Entity_Type: Entity_Type_Label: MA-STRC.AAT Entity_Type_Definition: Attribute table of MA-STRC. Entity_Type_Definition_Source: ARC/INFO Attribute: Attribute_Label: LTYPE Attribute_Definition: The type of fold axis or other structural linear feature that does not bound geologic units. Faults and contacts are described in a seperate coverage. Attribute_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (none) Enumerated_Domain_Value_Definition: No features of this type were recorded in this report Enumerated_Domain_Value_Definition_Source: author Detailed_Description: Entity_Type: Entity_Type_Label: MA-BLKS.PAT Entity_Type_Definition: Attribute table of MA-BLKS. Entity_Type_Definition_Source: ARC/INFO Attribute: Attribute_Label: PTTYPE Attribute_Definition: Type of melange block observed at this point Attribute_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: blk.h Enumerated_Domain_Value_Definition: High-grade metamorphic block Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: blk.l Enumerated_Domain_Value_Definition: Low-grade metamorphic block Enumerated_Domain_Value_Definition_Source: author Attribute: Attribute_Label: BKTYPE Attribute_Definition: More detailed information about the type of melange block observed at this point. Attribute_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: c Enumerated_Domain_Value_Definition: Chert (KJfch) Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: g Enumerated_Domain_Value_Definition: Greenstone (Jfgs) Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: h Enumerated_Domain_Value_Definition: Gneissic metamorphic rocks (Jfmg) Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n Enumerated_Domain_Value_Definition: Silica-carbonate rock (sc) Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: p Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: r Enumerated_Domain_Value_Definition: Metachert (Jfmch) Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: s Enumerated_Domain_Value_Definition: Serpentinite (sp) Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: u Enumerated_Domain_Value_Definition: Meta-greenstone (Jfmgs) Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: w Enumerated_Domain_Value_Definition: Graywacke (Jfgwy) Enumerated_Domain_Value_Definition_Source: author Detailed_Description: Entity_Type: Entity_Type_Label: MA-ALTR.PAT Entity_Type_Definition: Attribute table of MA-ALTR. Entity_Type_Definition_Source: ARC/INFO Attribute: Attribute_Label: PTYPE Attribute_Definition: Designates areas of hydrothermal alteration Attribute_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: ha Enumerated_Domain_Value_Definition: Hydrothermal alteration was observed in this area Enumerated_Domain_Value_Definition_Source: author Detailed_Description: Entity_Type: Entity_Type_Label: MA-ALTR.AAT Entity_Type_Definition: Attribute table of MA-ALTR. Entity_Type_Definition_Source: ARC/INFO Attribute: Attribute_Label: LTYPE Attribute_Definition: Type of line Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: scratch boundary, Enumerated_Domain_Value_Definition: The edge of mapped areas of hydrothermal alteration. This boundary is not well-located as described in Attribute_Accuracy, but the location is constrained to be within about 2 mm at map scale (1:62,500) or within about 125 meters on the ground. The contact is gradational. Enumerated_Domain_Value_Definition_Source: author Detailed_Description: Entity_Type: Entity_Type_Label: MA-QUAD.PAT Entity_Type_Definition: Attribute table of MA-QUAD. Entity_Type_Definition_Source: ARC/INFO Attribute: Attribute_Label: PTYPE Attribute_Definition: Used to delineate areas of water in the mapped area Attribute_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: water Enumerated_Domain_Value_Definition: Areas of water in the mapped area Enumerated_Domain_Value_Definition_Source: author Detailed_Description: Entity_Type: Entity_Type_Label: MA-QUAD.AAT Entity_Type_Definition: Attribute table of MA-QUAD. Entity_Type_Definition_Source: ARC/INFO Attribute: Attribute_Label: LTYPE Attribute_Definition: Type of line recorded in the quadrangle index coverage. Attribute_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: map boundary Enumerated_Domain_Value_Definition: Edge of the mapped area. The location of the boundary is well located as described in Positional_Accuracy Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: map boundary, Enumerated_Domain_Value_Definition: Edge of the mapped area. The location of the boundary is well located as described in Positional_Accuracy Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: quad, Enumerated_Domain_Value_Definition: Edge of a USGS 7.5 minute quadrangle in the map area. This line is derived from a 7.5 minute grid generated from latitude and longitude values and therefore should be precisely located. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: water boundary Enumerated_Domain_Value_Definition: The edge of a mapped body of water. This line is derived from the base map, and therefore is well-located as described in Positional_Accuracy. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: water boundary, Enumerated_Domain_Value_Definition: The edge of a mapped body of water. This line is derived from the base map, and therefore is well-located as described in Positional_Accuracy. Enumerated_Domain_Value_Definition_Source: author Detailed_Description: Entity_Type: Entity_Type_Label: MA-CORR.PAT Entity_Type_Definition: Attribute table of MA-CORR. Entity_Type_Definition_Source: ARC/INFO Attribute: Attribute_Label: PTYPE Attribute_Definition: Labels of geologic units and areas of water. Attribute_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qaf Enumerated_Domain_Value_Definition: Artificial fill Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qmf Enumerated_Domain_Value_Definition: Artificial fill over marine and marsh deposits Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qs Enumerated_Domain_Value_Definition: Beach sand Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qd Enumerated_Domain_Value_Definition: Dune sand Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qm Enumerated_Domain_Value_Definition: Marine and marsh deposits Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qls Enumerated_Domain_Value_Definition: Landslide deposits Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qal Enumerated_Domain_Value_Definition: Alluvium Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qsr Enumerated_Domain_Value_Definition: Slope debris and ravine fill Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qu Enumerated_Domain_Value_Definition: Undifferentiated surficial deposits Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qr Enumerated_Domain_Value_Definition: Volcanic gravel Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qob Enumerated_Domain_Value_Definition: Older beach deposits Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qoal Enumerated_Domain_Value_Definition: Older alluvium Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qt Enumerated_Domain_Value_Definition: Marine and stream terrace deposits Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qmi Enumerated_Domain_Value_Definition: Millerton Formation Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qc Enumerated_Domain_Value_Definition: Colma Formation Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: QTm Enumerated_Domain_Value_Definition: Merced Formation Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Twg Enumerated_Domain_Value_Definition: Wilson Grove Formation Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tps Enumerated_Domain_Value_Definition: Petaluma Formation, siltstone and claystone member Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tpc Enumerated_Domain_Value_Definition: Petaluma Formation, gray claystone member Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tsv Enumerated_Domain_Value_Definition: Sonoma Volcanics Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tsr Enumerated_Domain_Value_Definition: Sonoma Volcanics, rhyolite lava flows Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tsri Enumerated_Domain_Value_Definition: Sonoma Volcanics, rhyolite plugs and dikes Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tsa Enumerated_Domain_Value_Definition: Sonoma Volcanics, andesite to basalt lava flows Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tst Enumerated_Domain_Value_Definition: Sonoma Volcanics, pumiceous ash flow tuff Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ts Enumerated_Domain_Value_Definition: Unnamed sandstone Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tm Enumerated_Domain_Value_Definition: Monterey shale Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kfs Enumerated_Domain_Value_Definition: Franciscan complex, sandstone and shale Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kfss Enumerated_Domain_Value_Definition: Franciscan complex, massive sandstone Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kfsh Enumerated_Domain_Value_Definition: Franciscan complex, thin-bedded shale Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kfl Enumerated_Domain_Value_Definition: Franciscan complex, limestone and chert Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kfg Enumerated_Domain_Value_Definition: Franciscan complex, greenstone Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kfch Enumerated_Domain_Value_Definition: Franciscan complex, chert Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kfgwy Enumerated_Domain_Value_Definition: Franciscan complex, graywacke Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kfdb Enumerated_Domain_Value_Definition: Franciscan complex, diabase Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: KJfm Enumerated_Domain_Value_Definition: Franciscan complex, meta-graywacke Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: KJfch Enumerated_Domain_Value_Definition: Franciscan complex, chert Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: KJfgc Enumerated_Domain_Value_Definition: Franciscan complex, greenstone and chert Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Jfg Enumerated_Domain_Value_Definition: Franciscan complex, greenstone Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Jfmgs Enumerated_Domain_Value_Definition: Franciscan complex, meta-greenstone Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Jfmch Enumerated_Domain_Value_Definition: Franciscan complex, metachert Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Jfmgc Enumerated_Domain_Value_Definition: Franciscan complex, meta-greenstone and metachert Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Jfgs Enumerated_Domain_Value_Definition: Franciscan complex, greenstone Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Jfmg Enumerated_Domain_Value_Definition: Franciscan complex, metamorphic rocks, gneissic Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Jspm Enumerated_Domain_Value_Definition: Franciscan complex, massive serpentinite Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fsr Enumerated_Domain_Value_Definition: Franciscan complex, melange Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: KJgv Enumerated_Domain_Value_Definition: Great Valley complex, undivided sandstone, shale, and conglomerate Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kgvn Enumerated_Domain_Value_Definition: Great Valley complex, Novato Conglomerate Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: KJgvs Enumerated_Domain_Value_Definition: Great Valley complex, sandstone and claystone Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: sp Enumerated_Domain_Value_Definition: Great Valley complex, serpentinite Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: sc Enumerated_Domain_Value_Definition: Great Valley complex, silica-carbonate rock Enumerated_Domain_Value_Definition_Source: author Detailed_Description: Entity_Type: Entity_Type_Label: MA-CORR.AAT Entity_Type_Definition: Attribute table of MA-CORR. Entity_Type_Definition_Source: ARC/INFO Attribute: Attribute_Label: LTYPE Attribute_Definition: Type of line used in the correlation chart Attribute_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: box Enumerated_Domain_Value_Definition: Edge of a box in the correlation chart Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: box, Enumerated_Domain_Value_Definition: Edge of a box in the correlation chart Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: brack, Enumerated_Domain_Value_Definition: Bracket line in the correlation chart Enumerated_Domain_Value_Definition_Source: author Detailed_Description: Entity_Type: Entity_Type_Label: MA-SO.PAT Entity_Type_Definition: Attribute table of MA-SO. Entity_Type_Definition_Source: ARC/INFO Attribute: Attribute_Label: PTYPE Attribute_Definition: The index number of the area labeled that relates to the sources of data as shown in the explanation sheet plotfile (maexpl.ps or maexpl.pdf) or in Lineage:Source Information: above. Attribute_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Source region 1 Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 10 Enumerated_Domain_Value_Definition: Source region 10 Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 11 Enumerated_Domain_Value_Definition: Source region 11 Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 12 Enumerated_Domain_Value_Definition: Source region 12 Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 13 Enumerated_Domain_Value_Definition: Source region 13 Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 14 Enumerated_Domain_Value_Definition: Source region 14 Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 15 Enumerated_Domain_Value_Definition: Source region 15 Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 16 Enumerated_Domain_Value_Definition: Source region 16 Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 17 Enumerated_Domain_Value_Definition: Source region 17 Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 18 Enumerated_Domain_Value_Definition: Source region 18 Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 19 Enumerated_Domain_Value_Definition: Source region 19 Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: Source region 2 Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 20 Enumerated_Domain_Value_Definition: Source region 20 Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 21 Enumerated_Domain_Value_Definition: Source region 21 Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 22 Enumerated_Domain_Value_Definition: Source region 22 Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 3 Enumerated_Domain_Value_Definition: Source region 3 Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 4 Enumerated_Domain_Value_Definition: Source region 4 Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 5 Enumerated_Domain_Value_Definition: Source region 5 Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 5a Enumerated_Domain_Value_Definition: Source region 5a Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 6 Enumerated_Domain_Value_Definition: Source region 6 Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 7 Enumerated_Domain_Value_Definition: Source region 7 Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 8 Enumerated_Domain_Value_Definition: Source region 8 Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 9 Enumerated_Domain_Value_Definition: Source region 9 Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 9&14 Enumerated_Domain_Value_Definition: Sources from both region 9 and 14 Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: water Enumerated_Domain_Value_Definition: Region of open water with no mapped geology. Enumerated_Domain_Value_Definition_Source: author Detailed_Description: Entity_Type: Entity_Type_Label: MA-SO.AAT Entity_Type_Definition: Attribute table of MA-SO. Entity_Type_Definition_Source: ARC/INFO Attribute: Attribute_Label: LTYPE Attribute_Definition: Type of line used in the Sources of Data Index Map coverage Attribute_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: county, boundary Enumerated_Domain_Value_Definition: The boundary between counties in the index map area. This line is not well-located as described in Positional_Accuracy, and is included for general reference only. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: leader Enumerated_Domain_Value_Definition: A line included for plotting purposes only to allow the labeling of some small areas. This line is not well-located as described in Positional_Accuracy, and is included for general reference only. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: map boundary, Enumerated_Domain_Value_Definition: The edge of the index map area. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: source, boundary Enumerated_Domain_Value_Definition: The boundary between regions within which different sources of data were used to supplement new mapping by the authors. The sources are delineated in Source_Information as well as Sheet 2 plotfiles maexpl.ps and maexpl.pdf. This line is not well-located as described in Positional_Accuracy, and is included for general reference only. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: water boundary, Enumerated_Domain_Value_Definition: The edge of a mapped body of water. This line is not well-located as described in Positional_Accuracy, and is included for general reference only. Enumerated_Domain_Value_Definition_Source: author Detailed_Description: Entity_Type: Entity_Type_Label: MA-TERR.PAT Entity_Type_Definition: Attribute table of MA-TERR. Entity_Type_Definition_Source: ARC/INFO Attribute: Attribute_Label: PTYPE Attribute_Definition: Symbol for mapped tectonostratigraphic terrane and areas of water Attribute_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: H2O Enumerated_Domain_Value_Definition: water Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: KJfm? Enumerated_Domain_Value_Definition: Franciscan Complex, metasandstone of unknown terrane affinity Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Q Enumerated_Domain_Value_Definition: Area where terranes are covered with Quaternary surficial deposits Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: T Enumerated_Domain_Value_Definition: Area where terranes are covered with Tertiary overlap strata Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: cro Enumerated_Domain_Value_Definition: Great Valley Complex, Coast Range Ophiolite Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fai Enumerated_Domain_Value_Definition: Franciscan Complex, Alacatraz terrane Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fg Enumerated_Domain_Value_Definition: Franciscan Complex, greenstone of unknown terrane affinity Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fm Enumerated_Domain_Value_Definition: Franciscan Complex, melange or Central terrane Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fmh Enumerated_Domain_Value_Definition: Franciscan Complex, Marin Headlands terrane Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fmh? Enumerated_Domain_Value_Definition: Franciscan Complex, Marin Headlands terrane, identification uncertain. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fnq Enumerated_Domain_Value_Definition: Franciscan Complex, Novato Quarry terrane Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fnr Enumerated_Domain_Value_Definition: Franciscan Complex, Nicasio Reservoir terrane Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fpb Enumerated_Domain_Value_Definition: Franciscan Complex, Permanente terrane Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fsb Enumerated_Domain_Value_Definition: Franciscan Complex, San Bruno Mountain terrane Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fyb Enumerated_Domain_Value_Definition: Franciscan Complex, Yolla Bolly terrane Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fyb? Enumerated_Domain_Value_Definition: Franciscan Complex, Yolla Bolly terrane, identification uncertain Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: gvh Enumerated_Domain_Value_Definition: Great Valley Complex, Healdsburg terrane Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: s Enumerated_Domain_Value_Definition: Salinian Complex, undivided Enumerated_Domain_Value_Definition_Source: author Detailed_Description: Entity_Type: Entity_Type_Label: MA-TERR.AAT Entity_Type_Definition: Attribute table of MA-TERR. Entity_Type_Definition_Source: ARC/INFO Attribute: Attribute_Label: LTYPE Attribute_Definition: The type of line in the terrane map. Attribute_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: contact, approx. located Enumerated_Domain_Value_Definition: Boundary between two mapped units that retains the original depositional or intrusive relationship (i.e. not faulted). The contact has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 2 mm at map scale (1:62,500) or within about 125 meters on the ground. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: contact, certain Enumerated_Domain_Value_Definition: Boundary between two mapped units that retains the original depositional or intrusive relationship (i.e. not faulted). The contact has been observed, so it is well-located as described in Positional_Accuracy. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: contact, concealed Enumerated_Domain_Value_Definition: Boundary between two mapped units that retains the original depositional or intrusive relationship (i.e. not faulted). The contact is obscured by overlying mapped units, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 2 mm at map scale (1:62,500) or within about 125 meters on the ground. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, active Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced and continues to experience relative offset between the rock bodies on either side of the fault. The fault has been observed, so it is well-located as described in Positional_Accuracy. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, approx. located Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced relative offset between the rock bodies on either side of the fault. The contact has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 2 mm at map scale (1:62,500) or within about 125 meters on the ground. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, certain Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced relative offset between the rock bodies on either side of the fault. The fault has been observed, so it is well-located as described in Positional_Accuracy. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, concealed Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced relative offset between the rock bodies on either side of the fault. The fault is obscured by overlying mapped units, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 10 mm at map scale (1:62,500) or within about 625 meters on the ground. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, inferred Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced relative offset between the rock bodies on either side of the fault. The fault has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 10 mm at map scale (1:62,500) or within about 625 meters on the ground. The existence of the fault is inferred from structural and stratigraphic relationships observed elsewhere. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, low-angle thrust, approx. lo Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced thrust offset between the rock bodies on either side of the fault. The contact has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 2 mm at map scale (1:62,500) or within about 125 meters on the ground. The dip of the fault plane is less than 15 degrees. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, low-angle thrust, certain Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced thrust offset between the rock bodies on either side of the fault. The fault has been observed, so it is well-located as described in Positional_Accuracy. The dip of the fault plane is less than 15 degrees. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, uncertain Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced relative offset between the rock bodies on either side of the fault. The fault has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 10 mm at map scale (1:62,500) or within about 625 meters on the ground. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: leader Enumerated_Domain_Value_Definition: A line used in concert with annotation to indicate the identity of selected small areas. The line has no other geologic or geographic significance, and its position is arbitrary. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: map boundary, Enumerated_Domain_Value_Definition: Edge of the mapped area. Used primarily to bound polygons at the edge of the map database. The location of the boundary is well located as described in Positional_Accuracy Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: reverse fault, approx. located Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced reverse offset between the rock bodies on either side of the fault. The contact has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 2 mm at map scale (1:62,500) or within about 125 meters on the ground. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: reverse fault, certain Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced reverse offset between the rock bodies on either side of the fault. The fault has been observed, so it is well-located as described in Positional_Accuracy. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: reverse fault, concealed Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced reverse offset between the rock bodies on either side of the fault. The fault is obscured by overlying mapped units, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 10 mm at map scale (1:62,500) or within about 625 meters on the ground. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: reverse fault, inferred Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced reverse offset between the rock bodies on either side of the fault. The fault has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 10 mm at map scale (1:62,500) or within about 625 meters on the ground. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: reverse fault, inferred, queried Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced reverse offset between the rock bodies on either side of the fault. The fault has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 10 mm at map scale (1:62,500) or within about 625 meters on the ground. The existence of this fault is inferred from probable regional and structural relationships. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: scratch boundary, Enumerated_Domain_Value_Definition: An arbitrary line with no geologic significance. Used primarily to divide polygons that would otherwise have more vertices than allowed by Arc/Info. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: thrust fault, certain Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced thrust offset between the rock bodies on either side of the fault. The fault has been observed, so it is well-located as described in Positional_Accuracy. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: thrust fault, concealed Enumerated_Domain_Value_Definition: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced thrust offset between the rock bodies on either side of the fault. The fault is obscured by overlying mapped units, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 10 mm at map scale (1:62,500) or within about 625 meters on the ground. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: water boundary Enumerated_Domain_Value_Definition: The edge of a mapped body of water. This line is derived from the base map, and therefore is well-located as described in Positional_Accuracy. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: water boundary, Enumerated_Domain_Value_Definition: The edge of a mapped body of water. This line is derived from the base map, and therefore is well-located as described in Positional_Accuracy. Enumerated_Domain_Value_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: water boundary, certain Enumerated_Domain_Value_Definition: The edge of a mapped body of water. This line is derived from the base map, and therefore is well-located as described in Positional_Accuracy. Enumerated_Domain_Value_Definition_Source: author Overview_Description: Entity_and_Attribute_Overview: The databases in this report were compiled in ARC/INFO, a commercial Geographic Information System (Environmental Systems Research Institute, Redlands, California). Almost all the attributes in the various attribute tables of the coverages included in the report are set or calculated by Arc/Info. The exceptions are "coveragename"-ID, LTYPE, PTYPE, PTTYPE, BKTYPE, SAMPNO, STRIKE, and DIP. "coveragename"-ID is required by internal policy to be sequential. This ensures the highest compatibility of our databases with other GISs. Therefore "coveragename"-ID is calculated equal to "coveragename"#, which is a unique, sequential integer assigned by Arc/Info to each data record. LTYPE, PTYPE, and PTTYPE are author added items to the coverage AAT or PAT that are used to describe the type of line (LTYPE), area (PTYPE), or point (PTTYPE) being recorded. All coverages with AAT and PAT present include these items in the data structure, although in some cases these items are not used. Each has WIDTH 35, OUTPUT 35, TYPE C. BKTYPE is an author added item that contains information about the type of rock observed at a certain point. It has WIDTH 2, OUTPUT 2, TYPE C. This item is only recorded in the table MA-BLKS.PAT STRIKE and DIP are author added items to the coverage PAT that record information about the orientation of planar geologic structures. Both have WIDTH 3, OUTPUT 3, TYPE I. These items are only recorded in the table MA-STRC.PAT Entity_and_Attribute_Detail_Citation: This report, madb.txt, madb.pdf, or madb.ps AND mageo.txt, mageo.pdf, or mageo.ps Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Information Services Contact_Address: Address_Type: mailing address Address: Box 25248, Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80255-0286 Country: USA Contact_Voice_Telephone: 1-888-ASK-USGS Contact_Facsimile_Telephone: 1-303-202-4693 Resource_Description: USGS MF-2337 Distribution_Liability: Mention of commercial products or organizations is descriptive and does not constitute an endorsement by the government of those products or organizations. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ARCE Format_Version_Number: 7.x Format_Information_Content: Polygon, line, and point data with attributes File_Decompression_Technique: gzip -d and tar Transfer_Size: 5 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/mf/2000/2337/mf2337c.tgz Fees: none Metadata_Reference_Information: Metadata_Date: 20160613 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Peter N Schweitzer Contact_Organization: USGS Midwest Area Contact_Position: Collection manager, USGS Geoscience Data Clearinghouse, http://geo-nsdi.er.usgs.gov/ Contact_Address: Address_Type: mailing address Address: Mail Stop 954 12201 Sunrise Valley Dr City: Reston State_or_Province: VA Postal_Code: 20192-0002 Country: USA Contact_Voice_Telephone: 703-648-6533 Contact_Facsimile_Telephone: 703-648-6252 Contact_Electronic_Mail_Address: pschweitzer@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998