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Preliminary geologic map of the Van Nuys 7.5' quadrangle, southern California: A digital database

Metadata also available as - [Questions & Answers] - [Parseable text] - [DIF]

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: R. F. Yerkes

Publication_Date: 1997

Title:

Preliminary geologic map of the Van Nuys 7.5' quadrangle, southern California: A digital database

Geospatial_Data_Presentation_Form: map

Series_Information:

Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 97-165

Online_Linkage: <http://pubs.usgs.gov/of/1997/of97-165/>

Keywords:

Theme:

Theme_Keyword_Thesaurus: National Geologic Map Database Catalog themes, augmented
Theme_Keyword: 3100 - Vector
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, version 1.0
Place_Keyword: 06037 = Los Angeles

Description:

Abstract:: This Open-File report is a digital geologic map database. This digital map database is compiled from previously published sources combined with some new mapping and modifications in nomenclature. The geologic map database delineates map units that are identified by general age and lithology following the stratigraphic nomenclature of the U. S. Geological Survey. For detailed descriptions of the units, their stratigraphic relations, sources of geologic mapping, and data on exploratory wells consult Yerkes (1996), and Yerkes and Showalter (1990). More specific information about the units may be available in the original sources.
Purpose:: To provide to the public a digital geologic map database of the Van Nuys 7.5' quadrangle, southern California

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1997

Currentness_Reference: publication date

Status:

Progress: complete
Maintenance_and_Update_Frequency: none planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -118.50
East_Bounding_Coordinate: -118.38
North_Bounding_Coordinate: 34.25
South_Bounding_Coordinate: 34.13

Access_Constraints: none

Use_Constraints: none

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Yerkes, Robert F
Contact_Organization: USGS-GEO-WRG-NGM

Contact_Address:

Address_Type: mailing and physical address
Address:: Mail Stop 975, USGS
345 Middlefield Road
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025
Country: US

Contact_Voice_Telephone: 650-329-4946

Contact_Electronic_Mail_Address: ryerkes@usgs.gov

Data_Set_Credit:

R. H. Campbell, Reston, VA assisted in field interpretations and compilation; P. K. Showalter and C. M. Wentworth supplied critical custom programming; and S. E. Graham updated supporting files for completeness and consistency and prepared this report.

Native_Data_Set_Environment: 7.0.3

Data_Quality_Information:

Logical_Consistency_Report:

This digital map database is compiled from previously published sources combined with some new mapping and modifications in nomenclature. The geologic map database delineates map units that are identified by general age and lithology following the stratigraphic nomenclature of the U. S. Geological Survey. For detailed descriptions of the units, their stratigraphic relations, sources of geologic mapping, and data on exploratory wells consult Yerkes (1996), and Yerkes and Showalter (1990).

Completeness_Report: Complete

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Yerkes, R.F.

Publication_Date: 1996

Title:

Preliminary geologic map of the Van Nuys 7.5' quadrangle, southern California

Geospatial_Data_Presentation_Form: map

Series_Information:

Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 96-86

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1996

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Yerkes (1996)

Source_Contribution:

For detailed descriptions of the units, their stratigraphic relations, sources of geologic mapping, and data on exploratory wells consult Yerkes (1996), and Yerkes and Showalter (1990).

Process_Step:

Process_Description:: The geologic map information was digitized from stable originals of the geologic maps at 1:24,000 scale. The author manuscripts (pencil on mylar) were scanned using a 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 graphical user interface ALACARTE (Fitzgibbon, 1991, Fitzgibbon and Wentworth, 1991, Wentworth and Fitzgibbon, 1991). Scanning artifacts significant for display at a scale of 1:24,000 were corrected.
The base map layer (vn-topo) was prepared by scanning a scale-stable composite negative image of the Triunfo Pass 7.5 minute topographic map (1972 edition). The negative was scanned using a monochrome scanner with a resolution of 400 dots per inch. The raster scan was converted to a GRID in ARC/INFO. The GRID was then vectorized and reprojected into State Plane Projection using the four corner tics as reference points. The arcs in the base layer have not been attributed.
Process_Date: 1996-1997

Source_Information:

Source_Citation:

Citation_Information:

Originator: Yerkes, R.F.

Originator: Showalter, P.K.

Publication_Date: 1990

Title:

Exploratory wells drilled in the Los Angeles, California 1:100,000 quadrangle, southern California

Geospatial_Data_Presentation_Form: map

Series_Information:

Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 90-627

Source_Scale_Denominator: 100000

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1990

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Yerkes and Showalter (1990)

Source_Contribution:

For detailed descriptions of the units, their stratigraphic relations, sources of geologic mapping, and data on exploratory wells consult Yerkes (1996), and Yerkes and Showalter (1990).

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: California state plane coordinate system

State_Plane_Coordinate_System:

SPCS_Zone_Identifier: 3426

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: unknown
Ordinate_Resolution: unknown

Planar_Distance_Units: meters

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: VN-GEOL.PAT
Entity_Type_Definition: Geologic map units symbols (no full descriptions found)
Entity_Type_Definition_Source: OFR-97-165

Detailed_Description:

Entity_Type:

Entity_Type_Label: VN-GEOL.AAT
Entity_Type_Definition: Linear geologic features
Entity_Type_Definition_Source: OFR-97-165

Attribute:

Attribute_Label: LTYPE

Attribute_Definition: Line type

Attribute_Definition_Source: OFR-97-165

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: contact, approx. located
Enumerated_Domain_Value_Definition: Contact whose position is not precisely located

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, 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: map boundary, certain
Enumerated_Domain_Value_Definition: Boundary of mapped area

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: scratch boundary
Enumerated_Domain_Value_Definition: Location of scratch boundary

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: scratch boundary, approx. located
Enumerated_Domain_Value_Definition: Scratch boundary whose position is not exact

Detailed_Description:

Entity_Type:

Entity_Type_Label: VN-GEOL.PAT
Entity_Type_Definition:: Geologic map units at specific locations (same attributes as polygon coverage VN-GEOL.PAT)
Entity_Type_Definition_Source: OFR-97-165

Detailed_Description:

Entity_Type:

Entity_Type_Label: VN-STRC.AAT
Entity_Type_Definition: fold axes
Entity_Type_Definition_Source: OFR-97-165

Attribute:

Attribute_Label: LTYPE

Attribute_Definition: Line type

Attribute_Definition_Source: OFR-97-165

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

Detailed_Description:

Entity_Type:

Entity_Type_Label: VN-STRC.PAT
Entity_Type_Definition: Strike and dip information of bedding
Entity_Type_Definition_Source: OFR-97-165

Attribute:

Attribute_Label: PTTYPE

Attribute_Definition: Point type

Attribute_Definition_Source: OFR-97-165

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: bedding
Enumerated_Domain_Value_Definition: Bedding orientation

Attribute:

Attribute_Label: DIP

Attribute_Definition: Dip of bedding

Attribute_Definition_Source: OFR-97-165

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 77
Attribute_Units_of_Measure: degrees
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: STRIKE

Attribute_Definition: Strike of bedding

Attribute_Definition_Source: OFR-97-165

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 92
Range_Domain_Maximum: 325
Attribute_Units_of_Measure: degrees
Attribute_Measurement_Resolution: 1

Detailed_Description:

Entity_Type:

Entity_Type_Label: VN-WELLS.PAT
Entity_Type_Definition: Exploratory oil wells
Entity_Type_Definition_Source: OFR-97-165

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 97-165

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 Van Nuys 7.5' Quadrangle, southern 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:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ArcInfo export

Format_Version_Number: 7.x

Format_Information_Content:

ARC/INFO export files	Description of coverage

vn-geol.e00            Depositional contacts, faults, and unit labels
vn-strc.e00            Strike and dip information, fold axes
vn-wells.e00           Exploratory oil wells
vn-topo.e00            Topographic base map taken from a scan  of a composite negative of the Van Nuys 7.5 minute quadrangle (contour interval = 20 ft.)

File_Decompression_Technique: gzip and tar

Transfer_Size: 12.6 megabytes

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: <http://pubs.usgs.gov/of/1997/of97-165/vanuys.tar.gz>

Fees: none

Custom_Order_Process:

A compressed tar file of the geologic map database and related files can be obtained by sending a tape with request and return address to:

Van Nuys, CA 7.5' Geologic Database
c/o Database Coordinator
US Geological Survey
345 Middlefield Road, M/S 975
Menlo Park, CA 94025

Do not omit any part of this address!
The compressed tar file will be returned on the tape. The acceptable tape types are: 1/4 inch, 150 MB cartridge tape, 2.3 or 5.0 GB, 8 mm Exabyte tape.

Metadata_Reference_Information:

Metadata_Date: 20000809

Metadata_Contact:

Contact_Information:

Contact_Person_Primary: