Geologic Map of the San Bernardino North 7.5' quadrangle, San Bernardino County, California

Federal Geographic Data Committee (FGDC) Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Reference_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Fred K. Miller

Publication_Date: 2001

Title: Geologic Map of the San Bernardino North 7.5' quadrangle, San Bernardino County, California

Edition: Version 1.0

Geospatial_Data_Presentation_Form: vector digital data

Series_Information:

Series_Name: U.S. Geological Survey Open-File Report

Issue_Identification:

Publication_Information:

Publication_Place: Menlo Park, California

Publisher: U.S. Geological Survey

Other_Citation_Details:

Online_Linkage: http://geopubs.wr.usgs.gov/open-file/of01-131/

Description:

Abstract:

The data set for the San Bernardino North 7.5' quadrangle was prepared under the U.S. Geological Survey Southern California Areal Mapping Project (SCAMP) a part of an ongoing effort to develop a regional geologic framework of southern California, and to utilize a Geographical Information System (GIS) format to create regional digital geologic databases. These regional databases are being developed as contributions to the National Geologic Map Database of the National Cooperative Geologic Mapping Program of the USGS. The digital geologic map database for the San Bernardino North 7.5' quadrangle has been created as a general-purpose data set that is applicable to other land-related investigations in the earth and biological sciences. For example, itcan be used for groundwater studies in the San Bernardino basin, and for mineral resource evaluation studies, animal and plant habitat studies, and soil studies in the San Bernardino National Forest. The database is not suitable for site-specific geologic evaluations. This data set maps and describes the geology of the San Bernardino North 7.5' quadrangle, San Bernardino County, California. Created using Environmental Systems Research Institute's ARC/INFO software, the data base consists of the following items: (1) a map coverage containing geologic contacts and units, (2) attribute tables for geologic units (polygons), contacts (arcs), and site-specific data (points). In addition, the data set includes the following graphic and text products: (1) A PostScript graphic plot-file containing the geologic map, topography, cultural data, a Correlation of Map Units (CMU) diagram, a Description of Map Units (DMU), an index map, a regional geologic and structure map, and a key for point and line symbols; (2) PDF files of this Readme (including the metadata file as an appendix), Description of Map Units (DMU), and the graphic produced by the PostScript plot file. The geologic map covers a part of the southwestern San Bernardino Mountains and the northwestern San Bernardino basin. Granitic and metamorphic rocks underlie most of the mountain area, and a complex array of Quaternary deposits fill the basin. These two areas are separated by strands of the seismically active San Andreas Fault. Bedrock units in the San Bernardino Mountains are dominate by large Cretaceous and Jurassic granitic bodies, ranging in composition from onzogranite to monzodiorite, and include lesser Triassic monzonite. The younger of these granitic rocks intrude a complex assemblage of gneiss, marble, and granitic rock of probable early Mesozoic age; the relationship between these metemorphic rocks and the Triassic rocks is unknown. Spanning the Pleistocene in age, large and small alluvial bodies emerge from the San Bernardino Mountains, and and fill the San Bernardino basin. In the southwestern part of the quadrangle, Cajon Wash carries sediments from both the San Bernardino and San Gabriel Mountains, and Lytle Creek heads in the eastern San Gabriel Mountains. Limite bedrock areas showing through the Quaternary sediments of the basin consist exclusively of Mesozoic Pelona Schist locally intruded by Tertairy dikes. Youthful-appearing fault scarps discontinuously mark the traces of the San Andreas Fault along the southern edge of the San Bernardino Mountains. Unnamed Tertiary sedimentary rocks are bounded by two strands of the fault between Badger Canyon and the east edge of the quadrangle. Young and old high-angle faults cut bedrock units within the San Bernardino Mountains, and the buried, seismically active San Jacinto Fault traverses the southwestern part of the quadrangle. The geologic map database contains original U.S. Geological Survey data generated by detailed field observation and by interpretation of aerial photographs. This digital Open-File map superceeds an older analog Open-File map of the quadrangle, and includes extensive new data on the Quaternary deposits, and revises some fault and bedrock distribution within the San Bernardino Mountains. The digital map was compiled on a base-stable cronoflex copy of the San Bernardino North 7.5' topographic base and then scribed. This scribe guide was used to make a 0.007 mil blackline clear-film, which was scanned at 1200 DPI by Optronics Specialty Company, Northridge, California; minor hand-digitized additions were made at the USGS. Lines, points, and polygonswere subsequently edited at the USGS using standard ARC/INFO commands. Digitizing and editing artifacts significant enough to display at a scale of 1:24,000 were corrected. Within the database, geologic contacts are represented as lines (arcs), geologic units as polygons, and site-specific data as points. Polygon, arc, and point attribute tables (.pat, .aat, and .pat, respectively) uniquely identify each geologic datum.

Purpose:

Not Available

Supplemental_Information:

REFERENCE: Fred K. Miller. 1979. Geologic map of the San Bernardino North quadrangle, California, U.S. Geological Survey Open-File Report 79-770, Menlo Park, California, U.S. Geological Survey

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19740101

Ending_Date: 19811231

Currentness_Reference:Unknown

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Description_of_Geographic_Extent:

Bounding_Coordinates:

West_Bounding_Coordinate: -117.37509

East_Bounding_Coordinate: -117.24991

North_Bounding_Coordinate: 34.25

South_Bounding_Coordinate: 34.124985

Keywords:

Theme:

Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS

Theme_Keyword_Thesaurus: GCMD PLATFORM

Theme_Keyword_Thesaurus: PROJECT

Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS

Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY

Theme_Keyword_Thesaurus: DATA SET LANGUAGE

Theme_Keyword: EARTH SCIENCE > SOLID EARTH > GEOMORPHIC LANDFORMS/PROCESSES > AEOLIAN LANDFORMS

Theme_Keyword: EARTH SCIENCE > SOLID EARTH > GEOMORPHIC LANDFORMS/PROCESSES > FLUVIAL LANDFORMS

Theme_Keyword: EARTH SCIENCE > SOLID EARTH > GEOMORPHIC LANDFORMS/PROCESSES > TECTONIC LANDFORMS

Theme_Keyword: EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > AGE DETERMINATIONS

Theme_Keyword: EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > BEDROCK LITHOLOGY

Theme_Keyword: EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > IGNEOUS ROCKS

Theme_Keyword: EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > METAMORPHIC ROCKS

Theme_Keyword: EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > MINERALS

Theme_Keyword: EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > SEDIMENTARY ROCKS

Theme_Keyword: EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > SEDIMENTS

Theme_Keyword: EARTH SCIENCE > SOLID EARTH > TECTONICS > PLATE TECTONICS > FAULT MOVEMENT

Theme_Keyword: EARTH SCIENCE > SOLID EARTH > TECTONICS > PLATE TECTONICS > FOLDS

Theme_Keyword: EARTH SCIENCE > SOLID EARTH > TECTONICS > PLATE TECTONICS > STRATIGRAPHIC SEQUENCE

Theme_Keyword: MAPS

Theme_Keyword: SCAMP > SOUTHERN CALIFORNIA AREAL MAPPING PROJECT

Theme_Keyword: Geologic Map

Theme_Keyword: Geology

Theme_Keyword: Bedrock Geology

Theme_Keyword: Surficial Geology

Theme_Keyword: San Andreas Fault

Theme_Keyword: Triassic Monzonite

Theme_Keyword: Jurassic Granitic Rocks

Theme_Keyword: Pelona Schist

Theme_Keyword: Gis

Theme_Keyword: Landslide Deposits

Theme_Keyword: Alluvial-fan Deposits

Theme_Keyword: Eolian Deposits

Theme_Keyword: Conglomerate And Arkose

Theme_Keyword: Conglomerate Of Crestline

Theme_Keyword: Hypabyssal Granitic Dikes

Theme_Keyword: Biotite Monzogranite

Theme_Keyword: Granodiorite Of Lake Gregory

Theme_Keyword: Quartz Monzonite Of Crestline

Theme_Keyword: Gneiss Of Devils Canyon

Theme_Keyword: Granodiorite Of Arrowhead Peak

Theme_Keyword: Monzonite Of Cedarpines Park

Theme_Keyword: Carbonate Rocks

Theme_Keyword: Wash Deposits

Theme_Keyword: Colluvial Deposits

Theme_Keyword: Talus Deposits

Theme_Keyword: Mesozoic

Theme_Keyword: Geoage Font Group

Theme_Keyword: Strike Slip

Theme_Keyword: Reverse Slip

Theme_Keyword: Oblique Slip

Theme_Keyword: California

Theme_Keyword: San Bernardino County

Theme_Keyword: San Bernardino North 7.5' Quadrangle

Theme_Keyword: GEOSCIENTIFIC INFORMATION

Theme_Keyword: ENGLISH

Place:

Place_Keyword_Thesaurus: GCMD

Place_Keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > CALIFORNIA

Access_Constraints: None

Use_Constraints:

The San Bernardino North 7.5' geologic-map database should be used to evaluate and understand the geologic character of the San Bernardino North 7.5' quadrangle as a whole. The data should not be used for purposes of site-specific land-use planning or site-specific geologic evaluations. The database is sufficiently detailed to identify and characterize geologic materials and structures. However, it is not sufficiently detailed for site-specific determinations. Use of this digital geologic map database should not violate the spatial resolution of the data. Although the digital form of the data removes the constraint imposed by the scale of a paper map, the detail and accuracy inherent in map scale are also present in the digital data. The fact that this database was compiled and edited at a scale of 1:24,000 means that higher resolution information may not have been uniformly retained in the data set. Plotting at scales larger than 1:24,000 will not yield greater real detail, although it may reveal fine-scale irregularities below the intended resolution of the database. Similarly, although higher resolution data is incorporated in parts of the map, the resolution of the combined output will be limited by the lower resolution data.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: FRED K. MILLER

Contact_Position: TECHNICAL CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Address: U.S. Geological Survey

Address: 904 West Riverside Avenue, Rm. 202

City: Spokane

State_or_Province: WA

Postal_Code: 99201-1087

Country: USA

Contact_Voice_Telephone: (509) 368-3120

Contact_Electronic_Mail_Address: fmiller@usgs.gov

Browse_Graphic:

Browse_Graphic_File_Name: http://geopubs.wr.usgs.gov/open-file/of01-131/images/sbnorth_map.gif

Browse_Graphic_File_Description:

Reduced-size image of the printed map sheet. 450x698 pixels, 24-bit color.

Browse_Graphic_File_Type: GIF

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Not Available

Logical_Consistency_Report:

Not Available

Completeness_Report:

Not Available

Lineage:

Process_Step:

Process_Description:

Not Available

Process_Date: Unknown

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.0010000000474 m

Longitude_Resolution: 0.0010000000474 m

Geographic_Coordinate_Units: Decimal degrees

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: DOI/USGS/GD/PUBS/WR/GEOPUBS > Publications-Western Region,Geological Division, U.S. Geological Survey, U.S. Department of the Interior

Contact_Person: CAROLYN A. DONLIN

Contact_Position: DATA CENTER CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Address: U.S. Geological Survey

Address: Geology Division

Address: 345 Middlefield Road

City: Menlo Park

State_or_Province: California

Postal_Code: 94025

Country: USA

Contact_Voice_Telephone: 650-329-5015

Contact_Facsimile_Telephone: 650-329-5119

Contact_Electronic_Mail_Address: cdonlin@usgs.gov

Resource_Description: USGS Open-File Report 01-131

Distribution_Liability:

Not Available

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ArcInfo Export

Transfer_Size: 2.6 megabytes

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://geopubs.wr.usgs.gov/

Access_Instructions:

DATA CENTER URL

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://geopubs.wr.usgs.gov/open-file/of01-131/

Access_Instructions:

Access to data an documentation for USGS OFR 01-131

Fees: None

Metadata_Reference_Information:

Metadata_Date: 20010518

Metadata_Review_Date: 20050411

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: PAMELA M. COSSETTE

Contact_Position: DIF AUTHOR

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Western Earth Surface Processes Team

Address: U.S. Geological Survey

Address: Federal Building

Address: U. S. Post Office

Address: W. 904 Riverside Ave, Ste. 202

City: Spokane

State_or_Province: WA

Postal_Code: 99201-1011

Country: USA

Contact_Voice_Telephone: (509) 368-3123

Contact_Facsimile_Telephone: (509) 368-3199

Contact_Electronic_Mail_Address: pcossette@usgs.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time