Metadata: Identification_Information: Citation: Citation_Information: Originator: R.W. Graymer Originator: D.L. Jones Originator: E.E. Brabb Publication_Date: 1996 Title: Preliminary geologic map emphasizing bedrock formations in Alameda County, California: A digital database Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 96-252 Online_Linkage: http://pubs.usgs.gov/of/1996/of96-252/ Description: Abstract: This Open-File report is a digital geologic map database of the Alameda County, California. Purpose: The data are released in a preliminary digital form to provide an opportunity for regional planners, local, state, and federal agencies, teachers, consultants, and others interested in geologic data to have the new data long before a traditional paper map is published. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1996 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: The authors currently plan to produce a second version of the geologic map of Alameda County that would include subdivided Quaternary units and enhanced stratigraphic description and nomenclature, both as a digital product and as a traditional paper map. The timing of release of these products, and indeed whether they will be produced at all, depends on a variety of factors, including funding, outside author control. Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -122.38 East_Bounding_Coordinate: -121.38 North_Bounding_Coordinate: 38.0 South_Bounding_Coordinate: 37.38 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: geology Theme_Keyword: geologic maps Theme_Keyword: bedrock geologic units Theme_Keyword: geologic structure Theme_Keyword: geospatial datasets Theme: Theme_Keyword_Thesaurus: National Geologic Map Database Catalog themes, augmented Theme_Keyword: 3400 - Graphical Theme_Keyword: 3100 - Vector Theme_Keyword: 3420 - PostScript Theme_Keyword: 3110 - ESRI Theme_Keyword: 3111 - coverage Theme_Keyword: 1100 - Geology Theme_Keyword: 1101 - General Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Categories Theme_Keyword: geoscientificInformation Place: Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4 Place_Keyword: f06001 = Alameda Access_Constraints: none Use_Constraints: none Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Graymer, Russell W Contact_Organization: USGS-GEO-WRG-NGM Contact_Address: Address_Type: mailing and physical address Address: Mail Stop 975, USGS 345 Middlefield Road City: Menlo Park State_or_Province: CA Postal_Code: 94025 Country: US Contact_Voice_Telephone: 650-329-4988 Contact_Electronic_Mail_Address: rgraymer@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/1996/of96-252/almap.pdf Browse_Graphic_File_Description: 5.5 megabyte pdf representation of the geologic map sheet. Browse_Graphic_File_Type: PDF Data_Set_Credit: We are grateful to Kristin R. McDougall, William V. Sliter, David Bukry, John A. Barron, and William P. Elder of the U.S. Geological Survey for the paleontologic determinations necessary to help establish the ages of rocks in Alameda County. Scott D. Hill, Superintendent of Watershed, kindly provided access to lands owned by the East Bay Regional Park District. Leo T. Bauer, Alameda Division Manager, provided access to lands owned by the San Francisco Water Department. G. Doug Myron, U.S. Geological Survey, arranged for access to some of the private land in the study area. Carl M. Wentworth, Todd T. Fitzgibbon, and Geoffrey A. Phelps graciously provided assistance with Alacarte and ARC/INFO. James J. Lienkaemper shared some of his knowledge of the creeping strand of the Hayward fault, and David. H. Oppenheimer provided maps showing the location of epicenters. Larry J. Dickerson and John M. Parker, U.S. Geological Survey volunteers, provided extensive support in the field. We are grateful to AmeriCorps for sponsoring Dickerson, Parker, and Brabb. Native_Data_Set_Environment: 7.0.3 Data_Quality_Information: Logical_Consistency_Report: This digital map database, compiled from previously open-filed U.S. Geological Survey reports (Graymer and others, 1994), other published and unpublished data (see Sources of Data in algeo.txt), and substantial new mapping by the authors in about two- thirds of the county, represents the general distribution of rocks and geologic structures in Alameda County. Completeness_Report: Provides only current information on the stratigraphy and structural geology of the area covered. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Graymer, R.W. Originator: Jones, D.L. Originator: Brabb, E.E Publication_Date: 1994 Title: Preliminary geologic map emphasizing bedrock formations in Contra Costa County, California Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 94-622 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1994 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Graymer and others (1994) Source_Contribution: Made a geologic map of the area. Process_Step: Process_Description: The geologic map information was digitized from stable originals of the geologic maps at 1:24,000 scale for newly mapped areas and 1:62,500 scale for the rest of the county. The author manuscripts (ink on mylar) were scanned using a Tektronix 4991 monochrome scanner with a resolution of 304.8 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 a contact or fault as appropriate, and scanning artifacts visible at 1:50,000 were removed. Base Map layers were prepared from scale-stable printing negatives of the U.S. Geological Survey San Francisco (1978 edition), Stockton (1989 edition), and San Jose (1978 edition) 1:100,000 topographic maps, which have a 50 meter contour interval. Scanned and vectorized images were transformed from scanner coordinates to projection coordinates with digital tics placed by hand at map corners. The images were then trimmed interactively by hand using ALACARTE to conform to the area of the geologic coverages, and the four portions were combined. Small mismatches at the boundaries caused by slight differences in the original scans remain in the three base map coverages. These base map layers are digital images but no information other than location is attached to the lines. Process_Date: 1994-1996 Process_Step: Process_Description: Creation of original metadata record Process_Date: 20000817 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jennifer Lenz Contact_Organization: US Geological Survey Contact_Address: Address_Type: mailing Address: 12201 Surise Valley Drive, Mail Stop 918 City: Reston State_or_Province: VA Postal_Code: 20192 Country: USA Contact_Voice_Telephone: 703-648-6974 Contact_Facsimile_Telephone: 703-648-6560 Contact_Electronic_Mail_Address: pschweitzer@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Entity point SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Complete Chain SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 10 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -123 Latitude_of_Projection_Origin: 0.0 False_Easting: 0.0 False_Northing: -500000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: Coordinate pair Planar_Distance_Units: meters Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: AL_AS.AAT Entity_Type_Definition: Index map of Assemblages in Alameda County, linear features Entity_Type_Definition_Source: OFR-96-252 Attribute: Attribute_Label: LTYPE Attribute_Definition: Line type Attribute_Definition_Source: OFR-96-252 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: contact, certain Enumerated_Domain_Value_Definition: Observed contact Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, approx. located Enumerated_Domain_Value_Definition: Fault whose position is not precisely known Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, certain Enumerated_Domain_Value_Definition: Observed fault Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, concealed Enumerated_Domain_Value_Definition: Concealed fault whose position is inferred Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: map boundary, Enumerated_Domain_Value_Definition: Boundary of mapped area Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: water boundary, Enumerated_Domain_Value_Definition: Boudary of bodies of water Detailed_Description: Entity_Type: Entity_Type_Label: AL_UM-FLT.AAT Entity_Type_Definition: Map of faults and fold axes in Alameda County with additional database items containing fault name Entity_Type_Definition_Source: OFR-96-252 Attribute: Attribute_Label: LTYPE Attribute_Definition: Line type Attribute_Definition_Source: OFR-96-252 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: f.a., anticline, approx. located Enumerated_Domain_Value_Definition: Anticlinal fold axis whose position is not precisely known Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: f.a., anticline, certain Enumerated_Domain_Value_Definition: Observed anticlinal fold axis Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: f.a., anticline, concealed Enumerated_Domain_Value_Definition: Concealed anticlinal fold axis whose position is inferred Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: f.a., overturned syncline, approx. 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water boundary, Enumerated_Domain_Value_Definition: Boundary of a body of water Detailed_Description: Entity_Type: Entity_Type_Label: AL_UM-PY.PAT Entity_Type_Definition: Geologic map units Entity_Type_Definition_Source: OFR-96-252 Attribute: Attribute_Label: PTYPE Attribute_Definition: Polygon type Attribute_Definition_Source: OFR-96-252 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qar Enumerated_Domain_Value_Definition: Artificial deposits (Holocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qu Enumerated_Domain_Value_Definition: Surficial deposits, undivided (Holocene and Pleistocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qls Enumerated_Domain_Value_Definition: Landslide deposits (Holocene and Pleistocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qt Enumerated_Domain_Value_Definition: Terrace deposits (Holocene(?) and Pleistocene) Attribute_Domain_Values: Enumerated_Domain: 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Enumerated_Domain_Value_Definition: Franciscan melange (Late Jurassic and/or Early Cretaceous) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: KJfe Enumerated_Domain_Value_Definition: Eylar Mountain terrane of Crawford (1976) (Late Jurassic and/or Early Cretaceous) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: KJfg Enumerated_Domain_Value_Definition: Franciscan greenstone (Late Jurassic and/or Early Cretaceous) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tbp Enumerated_Domain_Value_Definition: Bald Peak Basalt (late Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tst Enumerated_Domain_Value_Definition: Siesta Formation (late Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tmb Enumerated_Domain_Value_Definition: Moraga Formation (late Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tor Enumerated_Domain_Value_Definition: Orinda Formation (late Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tcc Enumerated_Domain_Value_Definition: Claremont Chert (middle to late Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tush Enumerated_Domain_Value_Definition: Unnamed gray mudstone (early Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tsm Enumerated_Domain_Value_Definition: Unnamed glauconitic mudstone (Oligocene(?) and Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tes Enumerated_Domain_Value_Definition: Unnamed mudstone (Eocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ta Enumerated_Domain_Value_Definition: Unnamed glauconitic sandstone (Paleocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: QTl Enumerated_Domain_Value_Definition: Livermore gravels (Pliocene and Pleistocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tmll Enumerated_Domain_Value_Definition: Lower member - Mullholland Formation of Ham (1952) (late Miocene and Pliocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tus Enumerated_Domain_Value_Definition: Unnamed sedimentary and volcanic rocks (late Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tn Enumerated_Domain_Value_Definition: Neroly Sandstone (late Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tbr Enumerated_Domain_Value_Definition: Briones Formation (middle and late Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tbi Enumerated_Domain_Value_Definition: I member - Briones Formation (middle and late Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tbg Enumerated_Domain_Value_Definition: G member - Briones Formation (middle and late Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tbgc Enumerated_Domain_Value_Definition: Conglomerate-G member - Briones Formation (middle and late Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tbgl Enumerated_Domain_Value_Definition: Limestone-G member - Briones Formation (middle and late Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tbf Enumerated_Domain_Value_Definition: F member - Briones Formation (middle and late Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tbe Enumerated_Domain_Value_Definition: E member - Briones Formation (middle and late Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tbd Enumerated_Domain_Value_Definition: D member - Briones Formation (middle and late Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tro Enumerated_Domain_Value_Definition: Rodeo Shale, Hambre Sandstone, Tice Shale, and Oursan Sandstone, undivided (middle Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tr Enumerated_Domain_Value_Definition: Rodeo Shale (middle Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Th Enumerated_Domain_Value_Definition: Hambre Sandstone (middle Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tt Enumerated_Domain_Value_Definition: Tice Shale (middle Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: To Enumerated_Domain_Value_Definition: Oursan Sandstone (middle Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tcs Enumerated_Domain_Value_Definition: Claremont Shale (middle Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ts Enumerated_Domain_Value_Definition: Sobrante Sandstone (middle Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ku Enumerated_Domain_Value_Definition: Unnamed sedimentary rocks (Late Cretaceous, Cenomanian and Turonian) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: QTl Enumerated_Domain_Value_Definition: Livermore gravels (Pliocene and Pleistocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tgvt Enumerated_Domain_Value_Definition: Green Valley and Tassajara Formations of Conduit (1938), undivided (Pliocene and Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tn Enumerated_Domain_Value_Definition: Neroly Sandstone (late Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tc Enumerated_Domain_Value_Definition: Cierbo Sandstone (late Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kss Enumerated_Domain_Value_Definition: Unnamed sandstone (Late Cretaceous, Campanian and Maastrichtian) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kslt Enumerated_Domain_Value_Definition: Unnamed siltstone (Late Cretaceous, Campanian) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ku Enumerated_Domain_Value_Definition: Unnamed mudstone (Late Cretaceous, Cenomanian and Turonian) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Jb Enumerated_Domain_Value_Definition: Massive basalt and diabase - Coast Range ophiolite (Jurassic) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Jgb Enumerated_Domain_Value_Definition: Gabbro and diabase - Coast Range ophiolite (Jurassic) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: sp Enumerated_Domain_Value_Definition: Serpentinite - Coast Range ophiolite (Jurassic) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tol Enumerated_Domain_Value_Definition: Oro Loma Formation of Briggs (1953) (Pliocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tn Enumerated_Domain_Value_Definition: Neroly Sandstone (late Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tc Enumerated_Domain_Value_Definition: Cierbo Sandstone (late Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kel Enumerated_Domain_Value_Definition: Unit E, lower member (Late Cretaceous) - Great Valley sequence Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kcu Enumerated_Domain_Value_Definition: Upper member, Unit C - Sandstone and shale (Late Cretaceous) - Great Valley sequence Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kcm Enumerated_Domain_Value_Definition: Middle member, Unit C - Sandstone and shale (Late Cretaceous) - Great Valley sequence Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kcl Enumerated_Domain_Value_Definition: Lower member, Unit C - Sandstone and shale (Late Cretaceous) - Great Valley sequence (Cretaceous) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kbsh Enumerated_Domain_Value_Definition: Unit B, shale member (Late Cretaceous) - Great Valley sequence Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: QTi Enumerated_Domain_Value_Definition: Irvington Gravels of Savage (1951) (Pliocene(?) and Pleistocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tv Enumerated_Domain_Value_Definition: Unnamed volcanic rocks (late Miocene and/or Pliocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tsh Enumerated_Domain_Value_Definition: Unnamed shale, sandstone, chert and dolomite (early Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ttls Enumerated_Domain_Value_Definition: Gray, algal limestone - Tolman Formation of Hall (1958) (Eocene?) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tts Enumerated_Domain_Value_Definition: Dark gray to dark greenish-gray - Tolman Formation of Hall (1958) (Eocene?) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tps Enumerated_Domain_Value_Definition: Unnamed siltstone and sandstone (Paleocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kp Enumerated_Domain_Value_Definition: Pinehurst Shale (Late Cretaceous, Campanian) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kr Enumerated_Domain_Value_Definition: Redwood Canyon Formation (Late Cretaceous, Campanian) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ksc Enumerated_Domain_Value_Definition: Shephard Creek Formation (Late Cretaceous, Campanian) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kcv Enumerated_Domain_Value_Definition: Unnamed sandstone, conglomerate, and shale of the Castro Valley area (Late Cretaceous, Turonian and younger(?)) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ko Enumerated_Domain_Value_Definition: Oakland Sandstone (Late Cretaceous, Cenomanian and/or Turonian) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kjm Enumerated_Domain_Value_Definition: Joaquin Miller Formation (Late Cretaceous, Cenomanian) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ksh Enumerated_Domain_Value_Definition: Unnamed shale (Early Cretaceous) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ks Enumerated_Domain_Value_Definition: Unnamed sandstone and shale (Cretaceous) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: KJk Enumerated_Domain_Value_Definition: Knoxville Formation (Late Jurassic and Early Cretaceous) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Jsv Enumerated_Domain_Value_Definition: Keratophyre and quartz keratophyre (Late Jurassic) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Jpb Enumerated_Domain_Value_Definition: Pillow basalt, basalt breccia, and minor diabase - Coast Range ophiolite (Jurassic) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Jb Enumerated_Domain_Value_Definition: Massive basalt and diabase - Coast Range ophiolite (Jurassic) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Jgb Enumerated_Domain_Value_Definition: Gabbro - Coast Range ophiolite (Jurassic) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tss Enumerated_Domain_Value_Definition: Unnamed sandstone (late Miocene and/or Pliocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ks Enumerated_Domain_Value_Definition: Unnamed sandstone and shale (Cretaceous) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ttem Enumerated_Domain_Value_Definition: Temblor Sandstone (middle Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tn Enumerated_Domain_Value_Definition: Neroly Sandstone (late Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tte Enumerated_Domain_Value_Definition: Tesla Formation (Eocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ksuh Enumerated_Domain_Value_Definition: Unnamed shale (Late Cretaceous) - Great Valley sequence Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ksus Enumerated_Domain_Value_Definition: Unnamed sandstone (Late Cretaceous) - Great Valley sequence Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ksu Enumerated_Domain_Value_Definition: Unnamed sandstone and shale (Late Cretaceous) - Great Valley sequence Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kkh Enumerated_Domain_Value_Definition: Horsetown Formation of Huey (1948) (Early Cretaceous) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fs Enumerated_Domain_Value_Definition: Franciscan metagrawake and shale (Lower Tertiary? and Upper Cretaceous) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fc Enumerated_Domain_Value_Definition: Franciscan chert (Lower Tertiary? and Upper Cretaceous) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fg Enumerated_Domain_Value_Definition: Franciscan greenstone (Lower Tertiary? and Upper Cretaceous) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: H2O Enumerated_Domain_Value_Definition: Surface Water Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tsms Enumerated_Domain_Value_Definition: Brown siltstone and fine-grained sandstone (Oligocene(?) and Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kfgm Enumerated_Domain_Value_Definition: Fine grained quartz diorite Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kd Enumerated_Domain_Value_Definition: Great Valley sequence, Unit D - Sandstone (Late Cretaceous) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kds Enumerated_Domain_Value_Definition: Great Valley sequence, Unit D - Shale Member (Late Cretaceous) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tccs Enumerated_Domain_Value_Definition: Claremont Formation, Sandstone and Siltstone Member (middle Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kcus Enumerated_Domain_Value_Definition: Great Valley sequence, Upper Member Unit C - Sandstone (Late Cretaceous) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: gb Enumerated_Domain_Value_Definition: Gabbro Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tmls Enumerated_Domain_Value_Definition: Sandstone Marker Beds of the Mullholland Formation of Ham (1952) (late Miocene and Pliocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tusl Enumerated_Domain_Value_Definition: Unnamed conglomerate, sandstone, siltstone, and limestone (late Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tgvtt Enumerated_Domain_Value_Definition: Green Valley and Tassajara Formation - Tuff Marker Bed (Pliocene and Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kc Enumerated_Domain_Value_Definition: Unnamed pebble to boulder conglomerate (Late Cretaceous, Cenomanianand and Turonian) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: KJkc Enumerated_Domain_Value_Definition: Pebble to cobble conglomerate of the Knoxville Formation (Late Jurassic and Early Cretaceous) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Torv Enumerated_Domain_Value_Definition: Orinda Formation, Plagioclase porphyrytic dacite (Late Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tlp Enumerated_Domain_Value_Definition: Unnamed freshwater limestone (Pliocene(?)) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tnc Enumerated_Domain_Value_Definition: Neroly Sandstone, locally mapped pebble conglomerate (late Miocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fl Enumerated_Domain_Value_Definition: Franciscan marble (Late Jurassic and/or Early Cretaceous) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: sc Enumerated_Domain_Value_Definition: Silica-carbonate rock, a subunit of serpentinite Detailed_Description: Entity_Type: Entity_Type_Label: AL_UM-PY.AAT Entity_Type_Definition: Linear geologic features Entity_Type_Definition_Source: OFR-96-252 Attribute: Attribute_Label: LTYPE Attribute_Definition: Line type Attribute_Definition_Source: OFR-96-252 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: contact, certain Enumerated_Domain_Value_Definition: Observed contact Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: contact, concealed Enumerated_Domain_Value_Definition: Concealed contact whose position is inferred Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: contact, approx. located Enumerated_Domain_Value_Definition: Contact whose position is not precisely known Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: contact, inferred Enumerated_Domain_Value_Definition: Contact whose position is inferred Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, certain Enumerated_Domain_Value_Definition: Observed fault Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, approx. located Enumerated_Domain_Value_Definition: Fault whose position is not precisely known Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, concealed Enumerated_Domain_Value_Definition: Concealed fault whose position is inferred Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, concealed, queried Enumerated_Domain_Value_Definition: Concealed fault whose position is inferred and questionable Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, inferred Enumerated_Domain_Value_Definition: Fault whose position is inferred Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, inferred, queried Enumerated_Domain_Value_Definition: Fault whose position is inferred and questionable Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: s.s. fault, r.l., approx. located Enumerated_Domain_Value_Definition: Right-lateral strike-slip fault whose position is not precisely known Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: s.s. fault, r.l., certain Enumerated_Domain_Value_Definition: Observed right-lateral strike-slip fault Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: s.s. fault, r.l., concealed Enumerated_Domain_Value_Definition: Concealed right-lateral strike-slip fault whose position is inferred Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: thrust fault, approx. located Enumerated_Domain_Value_Definition: Thrust fault whose position is not precisely known Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: thrust fault, certain Enumerated_Domain_Value_Definition: Observed thrust fault Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: thrust fault, concealed Enumerated_Domain_Value_Definition: Concealed thrust fault whose position is inferred Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: thrust fault, concealed, queried Enumerated_Domain_Value_Definition: Concealed thrust fault whose position is questionable Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: tuff bed Enumerated_Domain_Value_Definition: Location of a tuff bed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: water boundary Enumerated_Domain_Value_Definition: Boundary of a body of water Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: map boundary Enumerated_Domain_Value_Definition: Boundary of mapped area Detailed_Description: Entity_Type: Entity_Type_Label: AL_UM-PY.PAT Entity_Type_Definition: Geologic map units at specific locations (same attributes as polygon coverage AL_UM-PY.PAT) Entity_Type_Definition_Source: OFR-96-252 Detailed_Description: Entity_Type: Entity_Type_Label: AL_UM-SR.AAT Entity_Type_Definition: Fold axes Entity_Type_Definition_Source: OFR-96-252 Attribute: Attribute_Label: LTYPE Attribute_Definition: Line type Attribute_Definition_Source: OFR-96-252 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: f.a., anticline, approx. located Enumerated_Domain_Value_Definition: Anticlinal fold axis whose position is not precisely known Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: f.a., anticline, certain Enumerated_Domain_Value_Definition: Observed anticlinal fold axis Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: f.a., anticline, concealed Enumerated_Domain_Value_Definition: Concealed anticlinal fold axis whose position is inferred Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: f.a., overturned syncline, approx. Enumerated_Domain_Value_Definition: Overturned synclinal fold axis whose position is not precisely known Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: f.a., syncline, approx. located Enumerated_Domain_Value_Definition: Synclinal fold axis whoes position is not precisely known Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: f.a., syncline, certain Enumerated_Domain_Value_Definition: Observed synclinal fold axis Detailed_Description: Entity_Type: Entity_Type_Label: AL_UM-SR.PAT Entity_Type_Definition: strike and dip information Entity_Type_Definition_Source: OFR-96-252 Attribute: Attribute_Label: PTTYPE Attribute_Definition: Point type Attribute_Definition_Source: OFR-96-252 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: approx bedding Enumerated_Domain_Value_Definition: Bedding orientation that is not precise Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: bedding Enumerated_Domain_Value_Definition: Bedding orientation Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: bedding w/tops Enumerated_Domain_Value_Definition: Bedding with tops orientation Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: crumpled bedding Enumerated_Domain_Value_Definition: Crumpled bedding orientation Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: flat bedding Enumerated_Domain_Value_Definition: Bedding whose dip is zero Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: foliation Enumerated_Domain_Value_Definition: Foliation orientation Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: foliation and bedding Enumerated_Domain_Value_Definition: Foliation and bedding orientation Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: joint Enumerated_Domain_Value_Definition: Joint orientation Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: ot bedding Enumerated_Domain_Value_Definition: Overturned bedding orientation Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: ot bedding w/tops Enumerated_Domain_Value_Definition: Overturned bedding with tops orientation Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: vert bedding Enumerated_Domain_Value_Definition: Bedding orientation whose dip is 90 degrees Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: vert bedding w/tops Enumerated_Domain_Value_Definition: Bedding with tops orientation whose dip is 90 degrees Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: vert foliation Enumerated_Domain_Value_Definition: Foliation orientation whose plunge is 90 degrees Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: vert foliation and bedding Enumerated_Domain_Value_Definition: Foliation and bedding orientation whose dip and plunge are 90 dgrees Overview_Description: Entity_and_Attribute_Overview: >Coverage FAULT.AAT - fault name >Attribute name - FNAME > >Fault names include: >Arroyo Aguague fault >Calaveras fault >Chabot fault >Dresser fault >Greenville fault >Hayward fault >Las Positas fault >Mill Creek fault >Miller Creek fault >Mission fault >Moraga fault >Palomares fault >Pirate Creek fault >Sheridan Creek fault >South Las Positas fault >Stonybrook fault >Verona fault >Warm Springs fault >Williams fault Entity_and_Attribute_Detail_Citation: For more information view the file aldb.txt. Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: USGS Information Services Contact_Address: Address_Type: mailing Address: Box 25286, Denver Federal Center City: Denver State_or_Province: Colorado Postal_Code: 80255-0046 Country: USA Contact_Voice_Telephone: 1-888-ASK-USGS Contact_Facsimile_Telephone: 1-303-202-4695 Contact_Electronic_Mail_Address: infoservices@usgs.gov Resource_Description: US Geological Survey Open-File Report 96-252 Distribution_Liability: This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. This database, identified as "Preliminary geologic map emphasizing bedrock formations in Alameda County, California: A digital database," has been approved for release and publication by the Director of the USGS. Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ARCE Format_Version_Number: 6.x Format_Information_Content: Faults, depositional contacts, and rock unit identities, Fold axes, strike and dip information, and base maps File_Decompression_Technique: gzip and tar Transfer_Size: Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/1996/of96-252/al_g1.tar.Z Fees: none Metadata_Reference_Information: Metadata_Date: 20160205 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