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Open-File Report 03-135

Geologic database for digital geology of California, Nevada, and Utah—An application of the North American Data Model

By David R. Bedford, Steve Ludington, Constance M. Nutt, Paul A. Stone, David M. Miller, Robert J. Miller, David L. Wagner, and George J. Saucedo

Thumbnail of and link to report PDF (1.5 MB)Introduction

The USGS is creating an integrated national database for digital state geologic maps that includes stratigraphic, age, and lithologic information. The majority of the conterminous 48 states have digital geologic base maps available, often at scales of 1:500,000. This product is a prototype, and is intended to demonstrate the types of derivative maps that will be possible with the national integrated database. This database permits the creation of a number of types of maps via simple or sophisticated queries, maps that may be useful in a number of areas, including mineral-resource assessment, environmental assessment, and regional tectonic evolution.

This database is distributed with three main parts: a Microsoft Access 2000 database containing geologic map attribute data, an Arc/Info (Environmental Systems Research Institute, Redlands, California) Export format file containing points representing designation of stratigraphic regions for the Geologic Map of Utah, and an ArcView 3.2 (Environmental Systems Research Institute, Redlands, California) project containing scripts and dialogs for performing a series of generalization and mineral resource queries.

IMPORTANT NOTE: Spatial data for the respective stage geologic maps is not distributed with this report. The digital state geologic maps for the states involved in this report are separate products, and two of them are produced by individual state agencies, which may be legally and/or financially responsible for this data. However, the spatial datasets for maps discussed in this report are available to the public. Questions regarding the distribution, sale, and use of individual state geologic maps should be sent to the respective state agency. We do provide suggestions for obtaining and formatting the spatial data to make it compatible with data in this report. See section ‘Obtaining and Formatting Spatial Data’ in the PDF version of the report.

First posted May 21, 2003

  • Database MDB (5.1 MB)
    Microsoft Access 2000 database of geologic attributes for digital geology of California, Nevada, and Utah
  • lithtree ZIP (12 kB)
    Microsoft Windows executable for browsing the lithology hierarchy of the database

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:

Bedford, David R., Ludington, Steve, Nutt, Constance M., Stone, Paul A., Miller, David M., Miller, Robert J., Wagner, David L., Saucedo, George J., 2003, Geologic database for digital geology of California, Nevada, and Utah—An application of the North American Data Model: U. S. Geological Survey Open-File Report 03-135, 35 pp.,

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