Preliminary Geologic Description of the San Jose 30 X 60 Minute Quadrangle, California: A Digital Database

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Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Carl M. Wentworth
Originator: M. Clark Blake, Jr.
Originator: Robert J. McLaughlin
Originator: Russell W. Graymer
Publication_Date: 1998
Title:

Preliminary Geologic Description of the San Jose 30 X 60 Minute Quadrangle, California: A Digital Database

Geospatial_Data_Presentation_Form: map
Series_Information:

Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 98-0795

Online_Linkage: http://pubs.usgs.gov/of/1998/of98-795/

Description:

Abstract:

The San Jose 30 x 60-minute quadrangle straddles the California Coast Ranges southeast of San Francisco, and extends from west of the San Andreas fault near Santa Cruz on the southwest (long. -122°, lat. 37°) to the San Joaquin River in the Central Valley on the northeast (long. -121°, lat. 37.5°). The map is a new geologic compilation that is based on extensive previous work by many authors and a great deal of new mapping, largely at 1:24,000, much of which is previously unpublished.
This report presents the preliminary geologic map of the San Jose 30 x 60-minute quadrangle at a scale of 1:100,000, and consists of a spatial database of nine layers, two colored map sheets (geologic map and correlation diagram), and a descriptive text.

Supplemental_Information:

Geologic Database:
  a. of98-795_4a.e00.gz -- Geology (ARC export coverage)
  b. of98-795_4b.e00 --  Tectonic blocks (ARC export coverage)
  c. of98-795_4c.e00 -- Annotation (ARC export coverage)
  d. of97-744_4d.tar.gz -- Geology (ARCVIEW shape files)
  e. of97-744_4e.tar -- Tectonic blocks (ARCVIEW shape files)
  f. of97-744_4f.tar -- Annotation (ARCVIEW shape files)

Quadrangle Index Database:
  a. of98-795_5a.e00 -- ARC export coverage
  b. of98-795_5b.tar -- ARCVIEW shape files

Topographic Base Database:
  a. of98-795_6a.e00 -- Drainage (ARC export coverage)
  b. of98-795_6b.e00 -- Index contours (ARC export coverage)
  c. of98-795_6c.e00 -- Intermediate contours (ARC export coverage)
  d. of98-795_6d.e00 -- Culture (ARC export coverage)
  e. of98-795_6e.e00 -- Land (ARC export coverage)
  f. of98-795_6f.tar -- Drainage (ARCVIEW shape files)
  g. of98-795_6g.tar -- Index contours (ARCVIEW shape files)
  h. of98-795_6h.tar -- Intermediate contours (ARCVIEW shape files)
  i. of98-795_6i.tar -- Culture (ARCVIEW shape files)
  j. of98-795_6j.tar -- Land (ARCVIEW shape files)

Plot File of Geologic Map:
  a. of98-795_7a.ps -- PostScript file
  b. of98-795_7b.pdf -- PDF file

Plot File of Correlation Diagram:
  a. of98-795_8a.ps -- PostScript file
  b. of98-795_8b.pdf -- PDF file

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1998

Currentness_Reference: publication date

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -122.0
East_Bounding_Coordinate: -121.0
North_Bounding_Coordinate: 37.5
South_Bounding_Coordinate: 37.0

Access_Constraints: none
Use_Constraints: none
Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: geology
Theme_Keyword: geologic maps
Theme_Keyword: geologic structure
Theme_Keyword: bedrock geologic units
Theme_Keyword: surficial geologic units
Theme_Keyword: faulting (geologic)
Theme_Keyword: tectonic processes
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: 3112 - export
Theme_Keyword: 3113 - shape
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: f06087 = Santa Cruz
Place_Keyword: f06085 = Santa Clara
Place_Keyword: f06099 = Stanislaus
Place_Keyword: f06047 = Merced
Place_Keyword: f06001 = Alameda

Browse_Graphic:

Browse_Graphic_File_Name: http://pubs.usgs.gov/of/1998/of98-795/of98-795_7b.pdf
Browse_Graphic_File_Description:

A 17.6 megabyte PDF representation of the San Jose 30 X 60 Minute Quadrangle, California.

Browse_Graphic_File_Type: PDF

Native_Data_Set_Environment:

The geologic database was compiled in vector form over the past decade with versions 4 through 7.2.1 of ARC/INFO, a commercial Geographic Information System (Environmental Systems Research Institute [ESRI], Redlands, California), on UNIX computers using the menu interface ALACARTE (versions 1 through 3.5: Fitzgibbon and Wentworth, 1991; Fitzgibbon, 1991; Wentworth and Fitzgibbon, 1991).

Data_Quality_Information:

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Pike, R.J.
Originator: Acevedo, William
Originator: Showalter, P.K.
Publication_Date: 1992
Title:

Mapping topographic form by digital image-processing in the San Jose 1:100,000 sheet, California

Geospatial_Data_Presentation_Form: map
Series_Information:

Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 92-420

Source_Scale_Denominator: 100000
Type_of_Source_Media: paper
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1992

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Pike and others, 1992
Source_Contribution: delineation of landform types

Process_Step:

Process_Description:

The geologic database was compiled digitally in vector form as individual 7.5-minute quadrangles from source materials ranging in scale from 1:12,000 to 1:62,500. Much of the material was initially fitted to 1:24,000 topography in polyconic or California State Plane (zone 4) projection. These were converted to UTM (see below), and the larger resulting departures from the 1:100,000 base then refitted to that base. Some of the most detailed areas, particularly in the Santa Cruz Mountains and the Del Puerto Ophiolite, were simplified for smaller scale presentation. The geology layers for the 32 individual quadrangles were assembled into a single layer for the 1:100,000 map area and interior quadrangle boundaries were removed. The locations and identities of tectonic blocks in the Diablo Range were similarly compiled, both from mapped points and from areas too small to show at scale (diameter less than 100 m) or representing aggregates of blocks. The resulting spatial database and standard symbol sets in ALACARTE were then used to prepare the colored geologic map image presented here. Some of the details in the spatial database, although retained in the 1:100,00 image, are too small for legible portrayal at that scale.

Process_Step:

Process_Description: Creation of original metadata record
Process_Date: 20090608
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

Completeness_Report:

The mapped area includes geologic units which are questionable and are indicated with a question mark. Geologic units underlying bodies of water are not indicated in this report.

Logical_Consistency_Report:

The geologic database was compiled in vector form over the past decade from a large variety of sources. This geologic database is based on individual 7.5-minute quadrangles from source materials ranging in scale from 1:12,000 to 1:62,500.

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: 500000
False_Northing: 0.0

Geodetic_Model:

Horizontal_Datum_Name: NAD27
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206
Denominator_of_Flattening_Ratio: 294.98

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: OF98-795_4a.PAT or SJ-GEOL.PAT
Entity_Type_Definition: Geologic map of San Jose 30 X 60 Minute Quadrangle, California
Entity_Type_Definition_Source: OFR-98-0795

Attribute:

Attribute_Label: PTYPE
Attribute_Definition: Polygon type
Attribute_Definition_Source: OFR-98-795
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: af
Enumerated_Domain_Value_Definition: Artificial fill (Modern)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qhc
Enumerated_Domain_Value_Definition: Stream channel deposits (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qha
Enumerated_Domain_Value_Definition: Alluvium (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qls
Enumerated_Domain_Value_Definition: Landslide deposits (Quaternary)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qa
Enumerated_Domain_Value_Definition: Alluvium, undivided (Quaternary)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qc
Enumerated_Domain_Value_Definition: Colluvium (Quaternary)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qt
Enumerated_Domain_Value_Definition: Stream terrace deposits (Quaternary)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qpa
Enumerated_Domain_Value_Definition: Alluvium (upper Pleistocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qoa
Enumerated_Domain_Value_Definition: Older alluvium (lower-middle Pleistocene?)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qmt
Enumerated_Domain_Value_Definition: Marine terrace deposits (Pleistocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qar
Enumerated_Domain_Value_Definition: Aromas Sand (Pleistocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: QTn
Enumerated_Domain_Value_Definition: Nonmarine deposits (Pleistocene and Pliocene?)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: PP
Enumerated_Domain_Value_Definition: Percolation pond (Modern)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: GP
Enumerated_Domain_Value_Definition: gravel pit (Modern)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qhbm
Enumerated_Domain_Value_Definition: Bay Mud (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qhb
Enumerated_Domain_Value_Definition: Basin deposits (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qhfp
Enumerated_Domain_Value_Definition: Flood plain deposits (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qhl
Enumerated_Domain_Value_Definition: Levee deposits (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qhc
Enumerated_Domain_Value_Definition: Stream channel deposits (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qht
Enumerated_Domain_Value_Definition: Stream terrace deposits (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qhf1
Enumerated_Domain_Value_Definition: Younger Alluvial fan deposits (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qhf2
Enumerated_Domain_Value_Definition: Older Alluvial fan deposits (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qpf
Enumerated_Domain_Value_Definition: Alluvial fan deposits (Upper Pleistocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qof
Enumerated_Domain_Value_Definition: Alluvial fan deposits (middle to upper Pleistocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qhc
Enumerated_Domain_Value_Definition: Stream channel deposits (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qhcj
Enumerated_Domain_Value_Definition: Channel deposits of the San Joaquin River (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qhb
Enumerated_Domain_Value_Definition: Basin deposits of the San Joaquin River (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qhlj
Enumerated_Domain_Value_Definition: Levee deposits of the San Joaquin River (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qhr
Enumerated_Domain_Value_Definition: Basin rim and distal fan deposits (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qap
Enumerated_Domain_Value_Definition: Alluvium of Patterson (upper Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qfc
Enumerated_Domain_Value_Definition: Alluvial fan complex (Holocene and upper Pleistocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qsu
Enumerated_Domain_Value_Definition:

Upper member, Alluvial fan complex (Holocene and upper Pleistocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qsl
Enumerated_Domain_Value_Definition:

Lower member, Alluvial fan complex (Holocene and upper Pleistocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qlu
Enumerated_Domain_Value_Definition:

Upper member, Alluvium of Los Banos (upper and middle Pleistocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qlm
Enumerated_Domain_Value_Definition:

Middle member, Alluvium of Los Banos (upper and middle Pleistocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qll
Enumerated_Domain_Value_Definition:

Lower member, Alluvium of Los Banos (upper and middle Pleistocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tp
Enumerated_Domain_Value_Definition: Purisima Formation (Pliocene and Upper Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tsc
Enumerated_Domain_Value_Definition: Santa Cruz Mudstone (Upper Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tsm
Enumerated_Domain_Value_Definition: Santa Margarita Sandstone (Upper Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tm
Enumerated_Domain_Value_Definition: Monterey Formation (Middle Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tlo
Enumerated_Domain_Value_Definition: Lompico Sandstone (Middle and Lower Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tla
Enumerated_Domain_Value_Definition: Lambert Shale (Lower Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tvq
Enumerated_Domain_Value_Definition:

Vaqueros Sandstone and volcanic rocks (Lower Miocene and Oligocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tvz
Enumerated_Domain_Value_Definition: Zayante Sandstone (Lower Miocene and Oligocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tvb
Enumerated_Domain_Value_Definition:

Basalt, probably equivalent to basalt west of the map area dated at 23.7 Ma (Tuerner, 197; Fox and others, 1984)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tsr
Enumerated_Domain_Value_Definition:

Rices Mudstone Member, San Lorenzo Formation (Oligocene and Eocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tst
Enumerated_Domain_Value_Definition:

Twobar Shale Member, San Lorenzo Formation (Oligocene and Eocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tbu
Enumerated_Domain_Value_Definition: Sandstone and mudstone, undivided, Butano Sandstone (Eocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tbc
Enumerated_Domain_Value_Definition: Conglomerate, Butano Sandstone (Eocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Kgr
Enumerated_Domain_Value_Definition: Granitic and Metamorphic Rocks (Cretaceous and older)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: sc
Enumerated_Domain_Value_Definition: Silica-carbonate rock (Miocene?)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tme
Enumerated_Domain_Value_Definition:

Shale and sandstone of Highland Way (lower Miocene to lower Eocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tls
Enumerated_Domain_Value_Definition:

Sandstone and mudstone, Sandstone and shale of Loma Chiquita Ridge (Eocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tcm
Enumerated_Domain_Value_Definition:

Mottled mudstone and sandstone of Mount Chual (lower Eocene), Sandstone and shale of Loma Chiquita Ridge (Eocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Kus
Enumerated_Domain_Value_Definition: Sandstone and shale (Upper Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Kuc
Enumerated_Domain_Value_Definition: Conglomerate (Upper Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: KJs
Enumerated_Domain_Value_Definition: Mudstone (Lower Cretaceous and Upper Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Jsl
Enumerated_Domain_Value_Definition: Slate of Loma Prieta Peak (Jurassic?)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Jbk
Enumerated_Domain_Value_Definition:

Basalt, andesite, and quartz keratophyre (Upper to Middle Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Jic
Enumerated_Domain_Value_Definition: Intrusive complex (Upper Jurassic?)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Jdw
Enumerated_Domain_Value_Definition: Cumulate rocks (Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: QTsc
Enumerated_Domain_Value_Definition: Santa Clara Formation (Pleistocene and Pliocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: sc
Enumerated_Domain_Value_Definition: Silica Carbonate rock (Miocene?)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tms
Enumerated_Domain_Value_Definition: Monterey Shale (Middle to Lower Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tus
Enumerated_Domain_Value_Definition: Sandstone, Monterey Shale (Middle to Lower Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tts
Enumerated_Domain_Value_Definition: Temblor Sandstone (Middle Miocene to Oligocene?)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Ttv
Enumerated_Domain_Value_Definition: Dacitic volcanic and intrusive rocks (middle Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Jsp
Enumerated_Domain_Value_Definition: Serpentinized ultramafic rocks (Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fm
Enumerated_Domain_Value_Definition:

Melange of the Central Belt, Franciscan Complex (Lower Tertiary? and Upper Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fpl
Enumerated_Domain_Value_Definition: Foraminiferal Limestone (Upper to Lower Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fpv
Enumerated_Domain_Value_Definition: Basaltic volcanic rocks (Lower Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fms
Enumerated_Domain_Value_Definition: Graywacke of the Marin Headlands terrane (Lower Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fmc
Enumerated_Domain_Value_Definition:

Radiolarian chert of the Marin Headlands terrane (Lower Cretaceous to Lower Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fmv
Enumerated_Domain_Value_Definition:

Basaltic volcanic rocks of the Marin Headlands terrane (Lower Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: QTp
Enumerated_Domain_Value_Definition:

Packwood Gravels of Crittenden (1951) (Pleistocene? and Pliocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tsg
Enumerated_Domain_Value_Definition: Silver Creek Gravels of Graymer and DeVito (1993) (Pliocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tba
Enumerated_Domain_Value_Definition: Basalt of Anderson and Coyote Reservoirs (Pliocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tvo
Enumerated_Domain_Value_Definition: Andesite of Silver Creek (Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tso
Enumerated_Domain_Value_Definition: Sandstone of Silver Creek (Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: sc
Enumerated_Domain_Value_Definition: Silica-carbonate rock (Miocene?)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: KJk
Enumerated_Domain_Value_Definition: Knoxville Formation (Lower Cretaceous and Upper Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Jsp
Enumerated_Domain_Value_Definition: Serpentinite, Coast Range Ophiolite (Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tbr
Enumerated_Domain_Value_Definition: Briones Formation (upper Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tcc
Enumerated_Domain_Value_Definition: Claremont Formation (upper to middle Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tts
Enumerated_Domain_Value_Definition: Temblor Sandstone (middle to lower Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tbm
Enumerated_Domain_Value_Definition: Brown-weathering mudstone (Eocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tgs
Enumerated_Domain_Value_Definition:

Glauconitic sandstone and red mudstone (lower Eocene and/or upper Paleocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Kcu
Enumerated_Domain_Value_Definition: Sandstone, mudstone, and conglomerate (Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: QTi
Enumerated_Domain_Value_Definition: Irvington Gravels of Savage (1951) (Pleistocene and Pliocene?)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tor
Enumerated_Domain_Value_Definition: Orinda Formation (upper Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Torv
Enumerated_Domain_Value_Definition: Basalt and andesite of the Orinda Formation (upper Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Kbs
Enumerated_Domain_Value_Definition: Sandstone and mudstone, Berryessa Formation (Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Kbc
Enumerated_Domain_Value_Definition: Conglomerate, Berryessa Formation (Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Kau
Enumerated_Domain_Value_Definition:

Sandstone, mudstone, and conglomerate of the Berryessa Formation (Upper Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Jbk
Enumerated_Domain_Value_Definition:

Basalt, keratophyre, and quartz keratophyre, Coast Range Ophiolite (Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Jic
Enumerated_Domain_Value_Definition:

Intrusive diabase, diorite, and gabbro, Coast Range Ophiolite (Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tsl
Enumerated_Domain_Value_Definition: Basalt of San Luis Reservoir (upper Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tqs
Enumerated_Domain_Value_Definition: Quien Sabe Volcanics (upper Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tqi
Enumerated_Domain_Value_Definition: Intrusive Phase, Quien Sabe Volcanics (upper Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tv
Enumerated_Domain_Value_Definition: Volcanic rocks, undivided (upper Miocene?)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tlt
Enumerated_Domain_Value_Definition: Siltstone and sandstone (upper to middle Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tts
Enumerated_Domain_Value_Definition: Temblor Sandstone (middle Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: bl
Enumerated_Domain_Value_Definition:

Blueschist block, Eastern Belt, Franciscan complex (Cretaceous and Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fb1
Enumerated_Domain_Value_Definition: Lower Unit, Burnt Hills terrane (Upper Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fb2
Enumerated_Domain_Value_Definition: Middle Unit, Burnt Hills terrane (Upper Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fb3
Enumerated_Domain_Value_Definition: Upper Unit, Burnt Hills terrane (Upper Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fy1
Enumerated_Domain_Value_Definition: Lower Unit, Yolla Bolly terrane (Cretaceous? and Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fy2
Enumerated_Domain_Value_Definition: Middle Unit, Yolla Bolly terrane (Cretaceous? and Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fy3
Enumerated_Domain_Value_Definition: Upper Unit, Yolla Bolly terrane (Cretaceous? and Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fys
Enumerated_Domain_Value_Definition:

Metagraywacke, undivided, Yolla Bolly terrane (Cretaceous? and Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fyu
Enumerated_Domain_Value_Definition:

Yolla Bolly terrane, undivided, Yolla Bolly terrane (Cretaceous? and Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fws
Enumerated_Domain_Value_Definition:

Ward Creek (?) terrane, Yolla Bolly terrane (Cretaceous? and Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: QTt
Enumerated_Domain_Value_Definition: Tulare Formation (Pleistocene and Pliocene?)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tfn
Enumerated_Domain_Value_Definition: Fanglomerate (lower Pliocene? and upper Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tvs
Enumerated_Domain_Value_Definition: Valley Springs Formation (lower Miocene and upper Oligocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tpf
Enumerated_Domain_Value_Definition: Poverty Flat Sandstone (upper and middle Eocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tkr
Enumerated_Domain_Value_Definition: Kreyenhagen Shale (middle Eocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tds
Enumerated_Domain_Value_Definition: Domengine Sandstone (middle Eocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tte
Enumerated_Domain_Value_Definition:

Sandstone and siltstone, Tesla Formation (Eocene and Paleocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Ttq
Enumerated_Domain_Value_Definition: Quartzose sandstone, Tesla Formation (Eocene and Paleocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Kmm
Enumerated_Domain_Value_Definition: Shale, Moreno Formation (Upper Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Kms
Enumerated_Domain_Value_Definition: Sandstone, Moreno Formation (Upper Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Kps
Enumerated_Domain_Value_Definition: Sandstone, Panoche Formation (Upper Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Kpc
Enumerated_Domain_Value_Definition: Conglomerate, Panoche Formation (Upper Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Kpm
Enumerated_Domain_Value_Definition: Mudstone, Panoche Formation (Upper Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Km
Enumerated_Domain_Value_Definition: Mudstone (Upper Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Ksh
Enumerated_Domain_Value_Definition: Shale (Lower Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: KJm
Enumerated_Domain_Value_Definition:

Mudstone, including Hawk Shale (Lower Cretaceous and Upper Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Klc
Enumerated_Domain_Value_Definition: Conglomerate (Lower Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Jlc
Enumerated_Domain_Value_Definition: Lotta Creek Formation (Upper Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Jbk
Enumerated_Domain_Value_Definition:

Basalt, keratophyre, and quartz keratophyre, Coast Range Ophioline (Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Jic
Enumerated_Domain_Value_Definition:

Intrusive diabase, diorite, and gabbro, Coast Range Ophioline (Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Jdw
Enumerated_Domain_Value_Definition: Dunite-wehrlite, Coast Range Ophiolite (Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: as
Enumerated_Domain_Value_Definition: Antigorite schist, Coast Range Ophioline (Jurassic)

Detailed_Description:

Entity_Type:

Entity_Type_Label: OF98-795_4a.AAT or SL-GEOL.AAT
Entity_Type_Definition: Linear geologic features
Entity_Type_Definition_Source: OFR-98-795

Attribute:

Attribute_Label: LYTPE
Attribute_Definition: Line type
Attribute_Definition_Source: OFR-98-795
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: contact, approx. located
Enumerated_Domain_Value_Definition:

unfaulted depositional or intrusive boundary between map units, relatively confident identification, location approximate

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: contact, certain
Enumerated_Domain_Value_Definition:

unfaulted depositional or intrusive boundary between map units, confident identification and location

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: contact, concealed
Enumerated_Domain_Value_Definition:

unfaulted depositional or intrusive boundary between map units, concealed beneath overlying map unit, identification and location dependant on adjacent control

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: contact, inferred
Enumerated_Domain_Value_Definition:

unfaulted depositional or intrusive boundary between map units, identification inferred, location approximate

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: contact, inferred, queried
Enumerated_Domain_Value_Definition:

unfaulted depositional or intrusive boundary between map units, identification inferred, location uncertain

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fault, approx. located
Enumerated_Domain_Value_Definition:

fault showing mappable disruption of map units or separating coherent Franciscan rock from melange, relatively confident identification, location approximate

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fault, certain
Enumerated_Domain_Value_Definition:

fault showing mappable disruption of map units or separating coherent Franciscan rock from melange, confident identification and location

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fault, concealed
Enumerated_Domain_Value_Definition:

fault showing mappable disruption of map units or separating coherent Franciscan rock from melange, concealed beneath overlying map unit, identification and location dependant on adjacent control

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fault, concealed, queried
Enumerated_Domain_Value_Definition:

fault showing mappable disruption of map units or separating coherent Franciscan rock from melange, concealed beneath overlying map unit, identification and/or location uncertain

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fault, inferred
Enumerated_Domain_Value_Definition:

fault showing mappable disruption of map units or separating coherent Franciscan rock from melange, identification inferred, location uncertain

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fault, inferred, queried
Enumerated_Domain_Value_Definition:

fault showing mappable disruption of map units or separating coherent Franciscan rock from melange, identification inferred, location uncertain

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: map boundary
Enumerated_Domain_Value_Definition: boundary of San Jose 30 X 60-minute quadrangle

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: scratch boundary
Enumerated_Domain_Value_Definition:

boundary without geologic attribute, here used bto close otherwise incomplete unit boundaries (largely narrow stream channels - Qa), assign no line symbol in plotting

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: water boundary
Enumerated_Domain_Value_Definition: boundary of open water from 1:100,000 base

Detailed_Description:

Entity_Type:

Entity_Type_Label: OF98-795_4a.PAT or SJ-GEOL.PAT
Entity_Type_Definition:

Geologic units at specific points (same attributes as polygon coverage)

Entity_Type_Definition_Source: OFR-98-795

Detailed_Description:

Entity_Type:

Entity_Type_Label: OF98-795_4b.PAT OR SJ-BLKS.PAT
Entity_Type_Definition: Types of tectonic blocks
Entity_Type_Definition_Source: OFR-98-795

Attribute:

Attribute_Label: BKTYPE
Attribute_Definition: Block type
Attribute_Definition_Source: OFR-98-795
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: a
Enumerated_Domain_Value_Definition: amphibolite, garnet amphibolite

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: b
Enumerated_Domain_Value_Definition: blueschist

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: e
Enumerated_Domain_Value_Definition: eclogite

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: h
Enumerated_Domain_Value_Definition: highgrade, undifferentiated

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: m
Enumerated_Domain_Value_Definition: mica schist

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: t
Enumerated_Domain_Value_Definition: greenschist

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: y
Enumerated_Domain_Value_Definition: grayblack schist, Ward Creek terrane?

Detailed_Description:

Entity_Type:

Entity_Type_Label: OF98-795_4c.AAT OR SJ-ANNO.AAT
Entity_Type_Definition: Annotation
Entity_Type_Definition_Source: OFR-98-795

Attribute:

Attribute_Label: LTYPE
Attribute_Definition: Line type
Attribute_Definition_Source: OFR-98-795
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: landsline arrow
Enumerated_Domain_Value_Definition: landslide arrow, points down slope

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: leader
Enumerated_Domain_Value_Definition: leader, connects unit label annotation with unit polygon

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: contact, certain
Enumerated_Domain_Value_Definition: Observed contact

Detailed_Description:

Entity_Type:

Entity_Type_Label: OF98-795_5a.PAT OR SJ-QGRID.PAT
Entity_Type_Definition: Quadrangle Index
Entity_Type_Definition_Source: OFR-98-795

Detailed_Description:

Entity_Type:

Entity_Type_Label: OF98-795_5a.AAT or SJ-QGRID.AAT
Entity_Type_Definition: Quadrangle boundaries
Entity_Type_Definition_Source: OFR-98-795

Attribute:

Attribute_Label: LTYPE
Attribute_Definition: Line type
Attribute_Definition_Source: OFR-98-795
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: quadboundarys
Enumerated_Domain_Value_Definition:

boundary of 7.5-minute quadrangle, exclusive of outer boundary of 1:100,000 quadrangle

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: sheetboundary
Enumerated_Domain_Value_Definition: Outside boundary of mapped area

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 98-795
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 of the San Jose 30 X 60-minute quadrangle, California: a digital database', has been approved for release and publication by the Director of the USGS. Although this database has been reviewed and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. This database is released on condition that neither the USGS nor the U.S. Government may be held liable for any damages resulting from its use.

Standard_Order_Process:

Non-digital_Form:

Map can be downloaded as a 15.1 megabyte PostScript file from http://pubs.usgs.gov/of/1998/of98-795/of98-795_7a.ps.gz
Map can also be downloaded as a 17.6 megabyte PDF file from http://pubs.usgs.gov/of/1998/of98-795/of98-795_7b.pdf

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ARCE
Format_Version_Number: 7.2.1
Format_Information_Content:

ARC/INFO export files

of98-795_4a.e00.gz	sj-geol		Geology: compressed ARC export coverage containing both lines and polygons
of98-795_4b.e00	sj-blks		Tectonic blocks: ARC export coverage containing points
of98-795_4c.e00	sj-anno		Annotation: ARC export coverage containing lines (leaders and landslide arrows) and several labels
of98-795_5a.e00	sj-qdgrid	Quadrangle Index: ARC export coverage containing lines, polygons, and annotation
of98-795_6a.e00	sj-drain	Drainage: ARC export coverage containing lines
of98-795_6b.e00	sj-index	Index contours: ARC export coverage containing lines
of98-795_6c.e00	sj-inter	Land: ARC export coverage containing lines

File_Decompression_Technique: gzip and tar
Transfer_Size: 7

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: http://pubs.usgs.gov/of/1998/of98-795/of98-795_10a.tar.gz

Digital_Form:

Digital_Transfer_Information:

Format_Name: Shapefile
Format_Version_Number: 1.0
Format_Information_Content:

ARCVIEW shapefiles

of97-744_4d.tar.gz	Geology: ARCVIEW line and polygon Shape files bundled as one compressed tar file
of97-744_4e.tar	Tectonic blocks: ARCVIEW point Shape files bundled as one tar file
of97-744_4f.tar	Annotation: ARCVIEW line Shape files bundled as one tar file
of98-795_5b.tar	Quadrangle Index: ARCVIEW line and polygon shape files bundled as one tar file
of98-795_6f.tar	Drainage: ARCVIEW line Shape files bundled as one tar file
of98-795_6g.tar	Index contours: ARCVIEW line Shape files bundled as one tar file
of98-795_6h.tar	Intermediate contours: ARCVIEW line Shape files bundled as one tar file
of98-795_6i.tar	Culture: ARCVIEW line Shape files bundled as one tar file
of98-795_6j.tar	Land: ARCVIEW line Shape files bundled as one tar file

File_Decompression_Technique: gzip and tar
Transfer_Size: 21

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: http://pubs.usgs.gov/of/1998/of98-795/of98-795_10b.tar.gz

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

This page is <https://geo-nsdi.er.usgs.gov/metadata/open-file/98-795/metadata.html>