Entry_ID: (required) Entry_Title: Geologic map and digital database of the San Rafael Mtn. 7.5- minute Quadrangle, Santa Barbara County, California Group: Data_Set_Citation Originator(s): Vedder, J.G.; Stanley, R.G.; Graham, S.E.; Valin, Z.C. Title: Geologic map and digital database of the San Rafael Mtn. 7.5- minute Quadrangle, Santa Barbara County, California Publication: U.S. Geological Survey Open-File Report Publication_Date: 2001 Publication_Place: Menlo Park, CA Publisher: U.S. Geological Survey Edition: 1.0 Data_Presentation_Form: geologic map URL: http://geopubs.wr.usgs.gov/open-file/of01-290 End_Group Keyword: geology Keyword: bedrock geology Keyword: surficial geology Keyword: geologic history Keyword: Franciscan complex Keyword: geologic structures Keyword: Big Pine fault Keyword: Hildreth fault Keyword: Little Pine fault Keyword: Mission Pine anticline Keyword: Hurricane Deck Syncline Keyword: Camuesa fault Keyword: geologic map Keyword: digital database Keyword: Landslide deposits Keyword: Young alluvium Keyword: Old alluvium Keyword: Paso Robles(?) Formation Keyword: Careaga Sandstone Keyword: Unnamed sandstone intrusive into the Monterey Formation Keyword: Unnamed intrusive and extrusive rocks Keyword: Monterey Formation Keyword: Hurricane Deck Formation of Thomas and others (1988) Keyword: Unnamed mudstone Keyword: Unnamed sandstone Keyword: Vaqueros(?) Formation Keyword: Simmler(?) Formation Keyword: Mudstone and subordinate sandstone Keyword: Sandstone and subordinate mudstone and conglomerate Keyword: Mudstone and subordinate sandstone Keyword: Sandstone, mudstone, and subordinate conglomerate Keyword: Sandstone and subordinate mudstone Keyword: Mudstone and subordinate sandstone Keyword: Espada Formation of Dibblee (1950, 1966) Keyword: Franciscan Complex Keyword: Serpentinite Keyword: Mesozoic Keyword: Jurassic Keyword: Cretaceous Keyword: Cenozoic Keyword: Tertiary Keyword: Paleocene Keyword: Oligocene Keyword: Miocene Keyword: Pliocene Keyword: Quaternary Keyword: Pleistocene Keyword: Holocene Group: Temporal_Coverage Start_date: 2001 Stop_date: 2001 End_Group Data_Set_Progress: Complete Group: Spatial_Coverage Southernmost_Latitude: 34.62498399 Northernmost_Latitude: 34.74999996 Westernmost_Longitude: -119.8749999 Easternmost_Longitude: -119.74990599 End_Group Location: United States of America Location: California Location: Santa Barbara County Group: Data_Resolution Latitude_Resolution: 1.0 Longitude_Resolution: 1.0 End_Group 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 1:24,000 means that higher resolution information is not present in the dataset. Plotting at scales larger than 1:24,000 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. Originating_Center: (required) Group: Data_Center Data_Center_Name: U.S. Geological Survey Dataset_ID: USGS Open-File Report 01-290 Group: Data_Center_Contact Last_name: Coordinator First_name: Database Group: Address 345 Middlefield Rd., M/S 975 Menlo Park, CA 94025 USA End_Group End_Group End_Group Storage_Medium: SunOS, 5.5.1, sun4u UNIX, ARC/INFO version 7.2.1 Group: Distribution Distribution_Media: online Distribution_Format : Arc/Info export Distribution_Size: 11.3 megabytes Fees: none End_Group Group: Multimedia_Sample URL: http://geopubs.wr.usgs.gov/open-file/of01-290/images/srm.gif Format: GIF Group: Description Reduced-size image of the entire map sheet, 205x202 pixels, 32-bit RGB true color. End_Group End_Group Group: Reference End_Group Group: Summary This database and accompanying plot files depict the distribution of geologic materials and structures at a regional (1:24,000) scale. The report is intended to provide geologic information for the regional study of materials properties, earthquake shaking, landslide potential, mineral hazards, mineral and energy resources, 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 substituted for comprehensive maps that systematically identify and classify landslide hazards. 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 (srm_expl.txt, srm_expl.pdf), 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 1:24,000 or smaller. 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 COVERAGE (ARC/INFO vector data) format. Coverages are stored in uncompressed ARC export format (ARC/INFO version 8.0. 2). 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 7.2.1 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 1:24,000 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 some scanning artifacts visible at 1:24,000 were removed. 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 Open-File Report. These files are described in the explanatory pamphlets (srm.ps, srm.pdf, and srm.txt). The base map layers used in the preparation of the geologic map plotfiles were scanned from a scale-stable version of the USGS 1:24,000 topographic maps of the San Rafael Mtn. (1959, photorevised 1988) 7.5-minute quadrangle. The map has a 40 foot contour interval. End_Group Group: DIF_Author Last_name: Stanley First_name: Richard Middle_name: G Email: rstanley@usgs.gov Phone: 650-329-4918 Group: Address Mail Stop 969 Bldg 15, McKelvey Building Menlo Park, CA 94025 USA End_Group End_Group DIF_Revision_Date: 20011011 Science_Review_Date: