Geology
National Atlas of the United States of America
By: John C. Reed and Charles A. Bush
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Abstract
This map shows the ages and types of rocks that lie at or near the land surface throughout the United States. It does not show surficial materials such as soil and glacial deposits, except where Quartenary sedimentary materials cover extensive areas and obscure underlying bedrock materials. The map is a generalization and simplification of the "Geologic Map of North America," published by the Geological Society of America in 2005. A more complete description of the map and discussion of major geologic features it portrays are available as U.S. Geological Survey Circular 1300 (in press).
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Unnumbered Series |
| Title | Geology |
| Series title | National Atlas of the United States of America |
| DOI | 10.3133/70211265 |
| Year Published | 2007 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Contributing office(s) | Geosciences and Environmental Change Science Center |
| Description | HTML Document |
| Country | United States |
| Projection | Albers Equal Area Projection |
| Scale | 7500000 |
| Google Analytic Metrics | Metrics page |