Geology of the Palo Alto 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: E.E. Brabb
Originator: R.W. Graymer
Originator: D.L. Jones
Publication_Date: 1998
Title:

Geology of the Palo Alto 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: 98-348

Publication_Information:

Publisher: U.S. Geological Survey

Online_Linkage: http://pubs.usgs.gov/of/1998/of98-348/

Description:

Abstract:

Some of the benefits that can be derived from these geologic maps are:

1.  Materials properties
2.  Earthquake shaking
3.  Liquefaction potential
4.  Ground water pollution
5.  Relating landslides
6.  Location of mineral hazards
7.  Seismic velocity
8.  Earthquake faults
9.  Education and scientific inquiry

Purpose:

The purpose of this new map is to compile the best available data on the identity and distribution of bedrock units, surficial deposits, and geologic structures at a regional scale, and to integrate those data into a digital spatial database. The digital nature of the product is important because it allows the geologic data to be easily combined with other data to produce derivative products (some of which are discussed below), allows new information to be readily integrated into the map database, makes transfer of data to users easy via the Internet, and facilitates production of a high-quality paper maps.

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: -122.5
East_Bounding_Coordinate: -122.0
North_Bounding_Coordinate: 37.5
South_Bounding_Coordinate: 36.75

Access_Constraints: none
Use_Constraints: none
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: 3112 - export
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: f06081 = San Mateo
Place_Keyword: f06085 = Santa Clara
Place_Keyword: f06087 = Santa Cruz

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: E.E. Brabb
Contact_Organization: US Geological Survey

Contact_Address:

Address_Type: mailing
Address: US Geological Survey, 345 Middlefield Rd., MS 975
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025
Country: USA

Browse_Graphic:

Browse_Graphic_File_Name: http://pubs.usgs.gov/of/1998/of98-348/pamap.pdf
Browse_Graphic_File_Description: A 4.9 megabyte PDF representation of the geologic map sheet
Browse_Graphic_File_Type: PDF

Data_Set_Credit:

We are grateful to the following U.S. Geological Survey paleontologists who have examined our fossils and provided ages necessary to establish the stratigraphic sequence and structure: David Bukry (Cretaceous and Tertiary nannoplankton), Kristin McDougall (Tertiary foraminifers), William Sliter (deceased - Cretaceous and Eocene foraminifers), John Barron (Tertiary diatoms), Charles Powell II (Tertiary mollusks), and Bonita Murchey (Mesozoic radiolaria). We are also very grateful to managers and staff of Chevron, EXXON, UNOCAL, ARCO, and Shell Petroleum Companies who have provided reports, maps, picked slides, and residues for about 25,000 microfossil localities in the San Francisco Bay Region. We are grateful to Tracey Felger, who made the original scan and a preliminary edit of author materials; to Judy Mariant, who did additional editing and tagging of lines; and to Dominique Garnier, who digitized many of the bedding attitudes. Carl Wentworth kindly provided advice on digitizing and editing procedures. Ed Helley provided materials and advice on Quaternary units.

Native_Data_Set_Environment: Arc/Info version 7.0.4

Data_Quality_Information:

Logical_Consistency_Report:

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 Palo Alto 30 X 60 minute quadrangle.

Completeness_Report:

This map is intended to be of general use to engineers and land-use planners. However, its small scale does not provide sufficient detail for site development purposes. In addition, this map does not take the place of fault-rupture hazard zones designated by the California State Geologist (Hart and Bryant, 1997). Similarly, the database cannot be used to identify or delineate landslides in the region. For a depiction of landslide distribution, see Brabb and Pampeyan (1972), Brabb and others (1978), Cooper-Clark and Associates (1975), Mark (1992), Wieczorek and others (1985), and Wieczorek and others (1988).

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Brabb, E.E.
Originator: Pampeyan, E.H.
Publication_Date: 1983
Title: Geologic map of San Mateo County, California
Geospatial_Data_Presentation_Form: map
Series_Information:

Series_Name: U.S. Geological Survey Miscellaneous Investigations Series Map
Issue_Identification: I-1257-A

Source_Scale_Denominator: 62500
Type_of_Source_Media: paper
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1983

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Brabb and Pampeyan (1983)
Source_Contribution:

This database is based on this previously published geologic map of San Mateo County

Source_Information:

Source_Citation:

Citation_Information:

Originator: Brabb, E.E.
Publication_Date: 1989
Title: Geologic map of Santa Cruz County, California
Geospatial_Data_Presentation_Form: map
Series_Information:

Series_Name: U.S. Geological Survey Miscellaneous Investigations Series Map
Issue_Identification: I-1905

Source_Scale_Denominator: 62500
Type_of_Source_Media: paper
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1989

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Brabb (1989)
Source_Contribution:

This map based on this previously published map of Santa Cruz county.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Brabb, E.E.
Originator: Graham, S.
Originator: Wentworth, C.
Originator: Knifong, D.
Originator: Graymer, R.
Originator: Blissenbach, J.
Publication_Date: 1997
Title:

Geologic map of Santa Cruz County, California: A digital database

Geospatial_Data_Presentation_Form: vector digital data
Series_Information:

Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 97-489

Source_Scale_Denominator: 62500
Type_of_Source_Media: online
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1997

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Brabb and others (1997)
Source_Contribution:

This map based on this previously published map of Santa Cruz county.

Process_Step:

Process_Description:

The geologic map information was digitized from stable originals of the geologic maps at 1:24,000 and 1:62,500 scale. The author manuscripts (pencil on mylar) were scanned using a Altek monochrome scanner with a resolution of 800 dots per inch. The scanned images were vectorized and transformed from scanner coordinates to projection coordinates with digital tics placed by hand at quadrangle corners. The scanned lines were edited interactively by hand using ALACARTE, color boundaries were tagged as appropriate, and scanning artifacts visible at 1:24,000 were removed. Base Map layers were prepared from scale-stable printing negatives of the U.S. Geological Survey Palo Alto (1982 edition) 1:100,000 topographic map, which has 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.

Process_Date: 1982-1998

Process_Step:

Process_Description: Creation of original metadata record
Process_Date: 20000726
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: 500000
False_Northing: 0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair
Planar_Distance_Units: meters

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: PA_AS.PAT
Entity_Type_Definition:

Index map of assemblages in the Palo Alto 30 X 60 minute quadrangle

Entity_Type_Definition_Source: OFR-98-348

Attribute:

Attribute_Label: PTYPE
Attribute_Definition: Polygon type
Attribute_Definition_Source: OFR-98-348
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 'Butano Ridge Assemblage'

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 'Mindego Hill Assemblage'

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 'Montara Mountain Assemblage'

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 'Pacifica Assemblage'

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 'Pigeon Point Assemblage'

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 'Portola Valley Assemblage'

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 'Quaternary cover'

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 'Santa Cruz Assemblage'

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 'Sky Londa Assemblage'

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 'Woodside Assemblage'

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 'artificial fill'

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: H20
Enumerated_Domain_Value_Definition: body of water

Detailed_Description:

Entity_Type:

Entity_Type_Label: PA_AS.AAT
Entity_Type_Definition: Linear features on index map
Entity_Type_Definition_Source: OFR-98-348

Attribute:

Attribute_Label: LTYPE
Attribute_Definition: Line type
Attribute_Definition_Source: OFR-98-348
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: fault, certain
Enumerated_Domain_Value_Definition: Observed fault

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fault, concealed
Enumerated_Domain_Value_Definition: Conclealed 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: map boundary
Enumerated_Domain_Value_Definition: boundary of mapped area

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: scratch boundary
Enumerated_Domain_Value_Definition: boundary that connects two lines

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: water boundary, certain
Enumerated_Domain_Value_Definition: Boundary of a body of water

Detailed_Description:

Entity_Type:

Entity_Type_Label: PA_AS.PAT
Entity_Type_Definition:

Geologic assemblages at specific points (same attributes as polygon coverage PA_AS.PAT)

Entity_Type_Definition_Source: OFR-98-348

Detailed_Description:

Entity_Type:

Entity_Type_Label: PA_QUAD.PAT
Entity_Type_Definition: Quadrangle boundaries
Entity_Type_Definition_Source: OFR-98-348

Attribute:

Attribute_Label: PTYPE
Attribute_Definition: Quadrangle names
Attribute_Definition_Source: OFR-98-348
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 'La Honda'

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 'San Gregorio'

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 'Franklin Point'

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 'Mountain View'

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 'Palo Alto'

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Woodside

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 'Half Moon Bay'

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Cupertino

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 'Mindego Hill'

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 'Castle Rock Ridge'

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 'Big Basin'

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 'Pigeon Point'

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Felton

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Davenport

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 'Ano Nuevo'

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 'Santa Cruz'

Detailed_Description:

Entity_Type:

Entity_Type_Label: PA_SO.AAT
Entity_Type_Definition: Sources of data index map for this map database
Entity_Type_Definition_Source: OFR-98-348

Attribute:

Attribute_Label: LTYPE
Attribute_Definition: Line type
Attribute_Definition_Source: OFR-98-348
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: contact, certain
Enumerated_Domain_Value_Definition: Known contact

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: leader
Enumerated_Domain_Value_Definition: leader for text

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: map boundary
Enumerated_Domain_Value_Definition: Mapped area

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: water boundary
Enumerated_Domain_Value_Definition: Boundary of body of water

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: water boundary, certain
Enumerated_Domain_Value_Definition: Boundary of body of water

Detailed_Description:

Entity_Type:

Entity_Type_Label: PA_UM-FLT.AAT
Entity_Type_Definition:

Index map of faults in the Palo Alto 30 X 60 minute quadrangle with annotation showing the names of major faults

Entity_Type_Definition_Source: OFR-98-348

Attribute:

Attribute_Label: LTYPE
Attribute_Definition: Line type
Attribute_Definition_Source: OFR-98-348
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: 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: reverse fault, approx. located
Enumerated_Domain_Value_Definition: Reverse fault whose position is not precisely known

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: reverse fault, certain
Enumerated_Domain_Value_Definition: Observed reverse fault

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: reverse fault, concealed
Enumerated_Domain_Value_Definition: Concealed reverse 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 inferred and questionalble

Detailed_Description:

Entity_Type:

Entity_Type_Label: PA_UM-PY.PAT
Entity_Type_Definition: rock units in the Palo Alto 30 X 60 minute quadrangle
Entity_Type_Definition_Source: OFR-98-348

Attribute:

Attribute_Label: PTYPE
Attribute_Definition: Polygon type
Attribute_Definition_Source: OFR-98-348
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: af
Enumerated_Domain_Value_Definition: Artificial fill (Historic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: alf
Enumerated_Domain_Value_Definition: Artificial levee fill (Historic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qhasc
Enumerated_Domain_Value_Definition: Artificial stream channels (Historic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qhsc
Enumerated_Domain_Value_Definition: Stream channel deposits (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qbs
Enumerated_Domain_Value_Definition: Beach sand (Holocene)

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: Qhbs
Enumerated_Domain_Value_Definition: Basin deposits, salt-affected (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qhfp
Enumerated_Domain_Value_Definition: Floodplain deposits (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qhl
Enumerated_Domain_Value_Definition: Natural levee deposits (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qhaf1
Enumerated_Domain_Value_Definition: Younger alluvial fan deposits (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qhaf
Enumerated_Domain_Value_Definition: Alluvial fan and fluvial deposits (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qyf
Enumerated_Domain_Value_Definition: Younger (inner) alluvial fan deposits (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qyfo
Enumerated_Domain_Value_Definition: Younger (outer) alluvial fan deposits (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qcl
Enumerated_Domain_Value_Definition: Colluvium (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qs
Enumerated_Domain_Value_Definition: Sand dune and beach deposits (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qal
Enumerated_Domain_Value_Definition: Alluvium (Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qls
Enumerated_Domain_Value_Definition: Landslide deposits (Pleistocene and/or Holocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qpaf
Enumerated_Domain_Value_Definition: Alluvial fan and fluvial deposits (Pleistocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qpaf1
Enumerated_Domain_Value_Definition: Alluvial terrace deposits (Pleistocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qpoaf
Enumerated_Domain_Value_Definition: Older alluvial fan deposits (Pleistocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qof
Enumerated_Domain_Value_Definition:

Coarse-grained older alluvial fan and stream terrace deposits (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: QTsc
Enumerated_Domain_Value_Definition: Santa Clara Formation (lower Pleistocene and upper Pliocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: QTsl
Enumerated_Domain_Value_Definition: Lake beds (upper Pliocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: QTm
Enumerated_Domain_Value_Definition: Merced Formation (lower Pleistocene and upper Pliocene)

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: Tptu
Enumerated_Domain_Value_Definition: Tunitas Sandstone Member (Pliocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tpl
Enumerated_Domain_Value_Definition: Lobitos Mudstone Member (Pliocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tpsg
Enumerated_Domain_Value_Definition: San Gregorio Sandstone Member (Pliocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tpp
Enumerated_Domain_Value_Definition: Pomponio Mudstone Member (Pliocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tpt
Enumerated_Domain_Value_Definition: Tahana Member (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: Tms
Enumerated_Domain_Value_Definition: Unnamed marine sandstone and shale (upper Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tlad
Enumerated_Domain_Value_Definition: Ladera Sandstone (upper(?) and middle 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 Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tpm
Enumerated_Domain_Value_Definition: Page Mill Basalt (middle Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tuv
Enumerated_Domain_Value_Definition: Unnamed Sedimentary and Volcanic Rocks (Miocene and Oligocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tls
Enumerated_Domain_Value_Definition:

Lambert Shale and San Lorenzo Formation, Undivided (lower Miocene, Oligocene, and middle and upper Eocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tla
Enumerated_Domain_Value_Definition: Lambert Shale (Oligocene and lower Miocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tmb
Enumerated_Domain_Value_Definition:

Mindego Basalt and related volcanic rocks (Miocene and/or Oligocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tvq
Enumerated_Domain_Value_Definition: Vaqueros Sandstone (lower Miocene and Oligocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tz
Enumerated_Domain_Value_Definition: Zayante Sandstone (Oligocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tsl
Enumerated_Domain_Value_Definition: San Lorenzo Formation (Oligocene and upper and middle Eocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tsr
Enumerated_Domain_Value_Definition: Rices Mudstone Member (Oligocene and upper Eocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tst
Enumerated_Domain_Value_Definition: Twobar Shale Member (middle and upper Eocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tb
Enumerated_Domain_Value_Definition: Butano Sandstone (middle and lower Eocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tbu
Enumerated_Domain_Value_Definition:

Upper sandstone member, Butano Sandstone (middle and lower Eocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tbm
Enumerated_Domain_Value_Definition:

Middle siltstone member, Butano Sandstone (middle and lower Eocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tbl
Enumerated_Domain_Value_Definition:

Lower conglomerate and sandstone member, Butano Sandstone (middle and lower Eocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tblc
Enumerated_Domain_Value_Definition: Conglomerate, Butano Sandstone (middle and lower Eocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tbs
Enumerated_Domain_Value_Definition: Shale in Butano Sandstone (lower Eocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tw
Enumerated_Domain_Value_Definition: Whiskey Hill Formation (middle and lower Eocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tws
Enumerated_Domain_Value_Definition: Shale in Whiskey Hill Formation (lower Eocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tu
Enumerated_Domain_Value_Definition: Unnamed sedimentary rocks (Eocene?)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tl
Enumerated_Domain_Value_Definition: Locatelli Formation (Paleocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tlss
Enumerated_Domain_Value_Definition: Sandstone, Locatelli Formation (Paleocene)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Kpp
Enumerated_Domain_Value_Definition: Pigeon Point Formation (Upper Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Ksh
Enumerated_Domain_Value_Definition: Unnamed shale (Upper Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Ka
Enumerated_Domain_Value_Definition:

Conglomerate of strata of Anchor Bay (Wentworth, 1968) (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: Kgr
Enumerated_Domain_Value_Definition: Granitic rocks of Montara Mountain (Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Kqd
Enumerated_Domain_Value_Definition: Granitic rocks of Ben Lomond Mountain (Cretaceous)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: KJv
Enumerated_Domain_Value_Definition: Unnamed volcanic rocks (Cretaceous or older)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: KJf
Enumerated_Domain_Value_Definition: Franciscan Complex, undivided (Cretaceous and Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fs
Enumerated_Domain_Value_Definition: Sandstone, Franciscan Complex (Cretaceous and Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fg
Enumerated_Domain_Value_Definition: Greenstone, Franciscan Complex (Cretaceous and Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fc
Enumerated_Domain_Value_Definition: Chert, Franciscan Complex (Cretaceous and Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fl
Enumerated_Domain_Value_Definition: Limestone, Franciscan Complex (Cretaceous and Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fm
Enumerated_Domain_Value_Definition: Metamorphic rocks, Franciscan Complex (Cretaceous and Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fh
Enumerated_Domain_Value_Definition: Argillite, Franciscan Complex (Cretaceous and Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fsr
Enumerated_Domain_Value_Definition:

Sheared rock (melange), Franciscan Complex (Cretaceous and Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: sp
Enumerated_Domain_Value_Definition: Serpentinite (Cretaceous and/or Jurassic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Jsv
Enumerated_Domain_Value_Definition: Siliceous volcanic rocks and keratophyre (Jurassic?)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Jgb
Enumerated_Domain_Value_Definition: Gabbro (Jurassic?)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: db
Enumerated_Domain_Value_Definition: Diabase and gabbro (Jurassic?)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: gd
Enumerated_Domain_Value_Definition: Gneissic granodiorite (Mesozoic or Paleozoic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: sch
Enumerated_Domain_Value_Definition: Metasedimentary rocks (Mesozoic or Paleozoic)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: m
Enumerated_Domain_Value_Definition: Marble (Mesozoic or Paleozoic)

Detailed_Description:

Entity_Type:

Entity_Type_Label: PA_UM-PY.AAT
Entity_Type_Definition: Linear geologic features
Entity_Type_Definition_Source: OFR-98-348

Attribute:

Attribute_Label: LTYPE
Attribute_Definition: Line type
Attribute_Definition_Source: OFR-98-348
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, 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: fault, concealed, queried
Enumerated_Domain_Value_Definition: Concealed fault whose position is 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: map boundary
Enumerated_Domain_Value_Definition: boundary of mapped area

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: reverse fault, approx. located
Enumerated_Domain_Value_Definition: Reverse fault whose position is not precisely known

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: reverse fault, certain
Enumerated_Domain_Value_Definition: Observed reverse fault

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: reverse fault, concealed
Enumerated_Domain_Value_Definition: Concealed reverse fault whose position is inferred

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: scratch boundary, certain
Enumerated_Domain_Value_Definition: Location of scratch boundary

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 inferred and questionable

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: water boundary
Enumerated_Domain_Value_Definition: Boundary of body of water

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: water boundary, certain
Enumerated_Domain_Value_Definition: Boudary of body of water

Detailed_Description:

Entity_Type:

Entity_Type_Label: PA_UM-PY.PAT
Entity_Type_Definition:

Geologic map units at specific localities (same attributes as polygon coverage PA_UM-PY.PAT)

Entity_Type_Definition_Source: OFR-98-348

Detailed_Description:

Entity_Type:

Entity_Type_Label: PA_UM-SR.AAT
Entity_Type_Definition: Structural features
Entity_Type_Definition_Source: OFR-98-348

Attribute:

Attribute_Label: LTYPE
Attribute_Definition: Line type
Attribute_Definition_Source: OFR-98-348
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., syncline, approx. located
Enumerated_Domain_Value_Definition: Synclinal fold axis whose 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

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: f.a., syncline, concealed
Enumerated_Domain_Value_Definition: Concealed synclinal fold axis whose position is inferred

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: f.a., syncline, inferred, queried
Enumerated_Domain_Value_Definition: Synclinal fold axis whose position is inferred and questionable

Detailed_Description:

Entity_Type:

Entity_Type_Label: PS_UM-SR.PAT
Entity_Type_Definition: Bedding orientation
Entity_Type_Definition_Source: OFR-98-348

Attribute:

Attribute_Label: PTTYPE
Attribute_Definition: Point type
Attribute_Definition_Source: OFR-98-348
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: approx bedding
Enumerated_Domain_Value_Definition: Bedding orientation that is not precisely known

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 orientation with tops

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: flat bedding
Enumerated_Domain_Value_Definition: Basically horizontal bedding

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: foliation
Enumerated_Domain_Value_Definition: Foliation 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: vert bedding
Enumerated_Domain_Value_Definition: Vertical bedding orientation

Attribute:

Attribute_Label: DIP
Attribute_Definition: dip of bedding
Attribute_Definition_Source: OFR-98-348
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 90
Attribute_Units_of_Measure: degrees
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: STRIKE
Attribute_Definition: strike of bedding
Attribute_Definition_Source: OFR-98-348
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 359
Attribute_Units_of_Measure: degrees
Attribute_Measurement_Resolution: 1

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 Geolocial Survey Open-File Report 98-348
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 "Geology of the Palo Alto 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 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: 7.x
Format_Information_Content:

ARC/INFO export file  Description of coverage

pa_um-py.e00          Faults, depositional contacts, and rock units
pa_um-sr.e00          Strike and dip information and fold axes
pa_quad.e00           Index map of quadrangles
pa_um-flt.e00         Index map of faults
pa_corr.e00           Correlation table for the units
pa_so.e00             Sources of data index map
pa_as.e00             Index map of Assemblages
pa_um-dr.e00          Drainage base map
pa_um-cu.e00          Cultural base map
pa_um-topo.e00        Topographic contours base map

File_Decompression_Technique: gzip and tar
Transfer_Size: 6.0

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: http://pubs.usgs.gov/of/1998/of98-348/pa_g1.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/98-348/metadata.html>