Entry_ID: (required) Entry_Title: Geologic maps and structure sections of the southwestern Santa Clara Valley and southern Santa Cruz Mountains, Santa Clara and Santa Cruz Counties, California Group: Data_Set_Citation Originator(s): McLaughlin, R.J.; Clark, J.C.; Brabb, E.E.; Helley, E.J.; Colón, C.J.; Valin, Z.C.; Wentworth, C.M.; Minnick, J.L.; May, T.E.; Randolph, C.R.; Gerhardt, Lisa; Nelson, C.E.; Showalter, Patrick; Lindquist, T.A. Title: Geologic maps and structure sections of the southwestern Santa Clara Valley and southern Santa Cruz Mountains, Santa Clara and Santa Cruz Counties, California Publication: U.S. Geological Survey Miscellaneous Field Studies Report Publication_Date: 2001 Publication_Place: Menlo Park, CA Publisher: U.S. Geological Survey Edition: 1.0 Data_Presentation_Form: map URL: http://pubs.usgs.gov/mf/2002/2373/ End_Group Keyword: geology Keyword: bedrock geology Keyword: surficial geology Keyword: geologic history Keyword: Franciscan complex Keyword: Coast Range ophiolite Keyword: Great Valley sequence Keyword: stratigraphic assemblages Keyword: geologic structures Keyword: San Andreas fault Keyword: Zayante fault Keyword: Sargent fault Keyword: Berrocal fault Keyword: Sierra Azul fault Keyword: Aldercroft fault Keyword: Coast Range fault Keyword: Monte Vista fault Keyword: San Jose fault Keyword: Hayward fault Keyword: Shannon fault zone Keyword: Lexington fault zone Keyword: Piercy fault zone Keyword: Hayward-Calaveras fault system Keyword: Soda Springs fault Keyword: Hooker Gulch fault Keyword: San Gregorio fault Keyword: Santa Cruz fault block Keyword: Ben Lomond fault block Keyword: La Honda fault block Keyword: New Almaden fault block Keyword: Sierra Azul fault block Keyword: Santa Teresa Hills fault block Keyword: Permanente terrane Keyword: Loma Prieta earthquake Keyword: San Francisco earthquake of 1906 Keyword: Mine dump Keyword: Gravel pit Keyword: Percolation pond Keyword: Artificial fill Keyword: Stream channel deposits Keyword: Alluvial fan deposits (Holocene) Keyword: Basin deposits Keyword: Levee deposits Keyword: Floodplain deposits Keyword: Alluvium, undivided Keyword: Landslide deposits, undivided Keyword: Alluvial terrace deposits, undivided Keyword: Marine terrace deposits Keyword: Aromas Sand Keyword: Dune deposits Keyword: Fluvial deposits Keyword: Alluvial fan deposits (Pleistocene) Keyword: Older alluvium, undivided Keyword: Older floodplain deposits Keyword: Santa Clara Formation Keyword: Fluvial deposits, undivided Keyword: Silica-carbonate rock Keyword: Unnamed sandstone Keyword: Monterey Shale Keyword: Temblor Sandstone Keyword: Volcanic and intrusive rocks Keyword: Serpentinized ultramafic rocks Keyword: Franciscan Complex Keyword: Melange of the Central belt Keyword: Blueschist blocks Keyword: Amphibolite blocks Keyword: Chert blocks Keyword: Basaltic volcanic rock blocks Keyword: Conglomerate block Keyword: Metadiorite block Keyword: Permanente terrane Keyword: Foraminiferal limestone Keyword: Volcanic rocks Keyword: Siliceous radiolarian-bearing tuff Keyword: Marin Headlands terrane Keyword: Sandstone (Upper and (or) Lower Cretaceous) Keyword: Radiolarian chert Keyword: Basaltic volcanic rocks Keyword: Shale and sandstone of Highland Way Keyword: Sandstone and shale of Loma Chiquita Ridge Keyword: Siliceous mudstone Keyword: Sandstone and mudstone Keyword: Mottled mudstone and sandstone of Mount Chual Keyword: Sandstone lenses Keyword: Limestone Keyword: Great Valley Sequence Keyword: Sandstone and shale Keyword: Conglomerate (Upper Cretaceous) Keyword: Mudstone (Lower Cretaceous and Upper Jurassic) Keyword: Sedimentary serpentinite Keyword: Altered tuff of Mount Umunhum Keyword: Diabase breccia of Mount Umunhum Keyword: Coast Range Ophiolite Keyword: Quartz-keratophyre breccia and siliceous tuff Keyword: Basalt, andesite and dacite Keyword: Intrusive complex Keyword: Gabbro cumulates Keyword: Ultramafic cumulates Keyword: Serpentinized ultramafic rocks Keyword: Slate of Loma Prieta Peak Keyword: Diabase of Corralitos Creek Keyword: Purisima Formation Keyword: Santa Cruz Mudstone Keyword: Santa Margarita Sandstone Keyword: Monterey Formation Keyword: Lompico Sandstone Keyword: Lambert Shale Keyword: Vaqueros Formation Keyword: Basalt flows Keyword: Zayante Sandstone Keyword: San Lorenzo Formation Keyword: Rices Mudstone Member Keyword: Twobar Shale Member Keyword: Butano Sandstone Keyword: Undivided sandstone and shale Keyword: Mudstone (late Eocene) Keyword: Sandstone (middle Eocene or younger) Keyword: Conglomerate (middle Eocene or younger) Keyword: Granitic and metamorphic rocks Keyword: Mafic basement rocks Keyword: Diabase and gabbro of Morrell Cutoff Road and Laurel Creek Keyword: Mesozoic Keyword: Jurassic Keyword: Cretaceous Keyword: Cenozoic Keyword: Tertiary Keyword: Paleogene Keyword: Neogene Keyword: Paleocene Keyword: Eocene Keyword: Oligocene Keyword: Miocene Keyword: Pliocene Keyword: Quaternary Keyword: Pleistocene Keyword: Holocene Group: Temporal_Coverage Start_date: 1988 Stop_date: 1997 End_Group Data_Set_Progress: Complete Group: Spatial_Coverage Southernmost_Latitude: 36.99845865 Northernmost_Latitude: 37.25153532 Westernmost_Longitude: -121.99997057 Easternmost_Longitude: -121.54756309 End_Group Location: United States of America Location: California Location: Santa Clara County Location: Santa Cruz 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 Miscellaneous Field Studies Report MF-2373 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 : PDF Fees: None End_Group Group: Distribution Distribution_Media: online Distribution_Format : ArcInfo export Distribution_Size: 17 megabytes Fees: None End_Group Group: Multimedia_Sample URL: http://pubs.usgs.gov/mf/2002/2373/images/index.jpg Format: JPEG Group: Description Index map of 7.5' quadrangles in the 1:100,000 San Jose quadrangle. Area of report shown in red. 500x311 pixels, 32-bit RGB true color, 35 kbytes. End_Group End_Group Group: Multimedia_Sample URL: http://pubs.usgs.gov/mf/2002/2373/lgmap.pdf Format: PDF Group: Description PDF file containing an image of the entire geologic map and base maps of the Los Gatos quadrangle at a scale of 1:24,000 intended for viewing. 4 megabytes. End_Group End_Group Group: Multimedia_Sample URL: http://pubs.usgs.gov/mf/2002/2373/lpmap.pdf Format: PDF Group: Description PDF file containing an image of the geologic map and base maps of the Loma Prieta quadrangle at a scale of 1:24,000 intended for viewing. 2.7 megabytes. End_Group End_Group Group: Multimedia_Sample URL: http://pubs.usgs.gov/mf/2002/2373/lrmap.pdf Format: PDF Group: Description PDF file containing an image of the geologic map and base maps of the Laurel quadrangle at a scale of 1:24,000 intended for viewing. 3.9 megabytes. End_Group End_Group Group: Multimedia_Sample URL: http://pubs.usgs.gov/mf/2002/2373/sth-mhmap.pdf Format: PDF Group: Description PDF file containing an image of the geologic map and base maps of the Santa Teresa Hills and southwestern part of the Morgan Hill quadrangle at a scale of 1:24,000 intended for viewing. 3.9 megabytes. End_Group End_Group Group: Multimedia_Sample URL: http://pubs.usgs.gov/mf/2002/2373/mm-glmap.pdf Format: PDF Group: Description PDF file containing an image of the geologic map and base maps of the Mount Madonna and southwestern part of the Gilroy quadrangle at a scale of 1:24,000 intended for viewing. 3.2 megabytes. 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, 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 (scvmf.ps, scvmf.pdf, scvmf.txt), 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. End_Group Group: DIF_Author Last_name: Valin First_name: Z.C. Group: Address 345 Middlefield Rd., M/S 975 Menlo Park, CA 94025 USA End_Group End_Group DIF_Revision_Date: 20010720 Science_Review_Date: