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Open-File Report 95-089

Notice: This USGS Publication Supersedes Open-File Report 93-525

Preliminary Geologic Map of the Oat Mountain 7.5' Quadrangle, Southern California; A Digital Database

Compiled by R. F. Yerkes and R. H. Campbell

Generic USGS publication coverIntroduction

This database, identified as "Preliminary Geologic Map of the Oat Mountain 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.

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 and sources of geologic mapping consult Yerkes and Campbell (1993). More specific information about the units may be available in the original sources.

First posted July 18, 1997

For additional information, contact:
Geology, Minerals, Energy, and Geophysics Science Center
U.S. Geological Survey
345 Middlefield Road, MS 901
Menlo Park, CA 94025-3591

Part or all of this report is presented in Portable Document Format (PDF). For best results viewing and printing PDF documents, it is recommended that you download the documents to your computer and open them with Adobe Reader. PDF documents opened from your browser may not display or print as intended. Download the latest version of Adobe Reader, free of charge.

Suggested citation:

Compiled by Yerkes, R. F., Campbell, Russell H., 1995, Preliminary Geologic Map of the Oat Mountain 7.5' Quadrangle, Southern California; A Digital Database: U. S. Geological Survey Open-File Report 95-089,


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