New Geology of the United States National Atlas Sheet from USGS/SILS Information Bulletin
The National Atlas of the United States has released a new map illustrating the Geology of the United States. It shows the:
Age, distribution, and character of rocks at or near the land surface;
Ages of sedimentary, volcanic, plutonic, and metamorphic rocks;
Bedrock immediately beneath soils or thin surficial deposits;
Thick deposits along the lower Mississippi River, on the Atlantic and Gulf Coastal Plains, and in the deep basins of the western Cordillera;
Limits of continental glaciation;
Major faults, impact structures, large volcanic calderas, and many other significant and interesting geologic features.
This map measures approximately 27" by 31" and is a generalization of a geologic map of North America that was published in 2005 by the Geological Society of America. The original compilation was prepared at a scale of 1:2,500,000 for publication at a scale of 1:5,000,000. This generalized version is intended for viewing at scales between about 1:10,000,000 and 1:7,500,000. The majority of the map covers the conterminous portion of the U.S. with insets covering Alaska, Hawaii, and Puerto Rico and the Virgin Islands.
For more information about the new geology map and hundreds of other National Atlas maps, visit online at: http://nationalatlas.gov. To purchase this map, or for more information on USGS products, contact the USGS Science Information and Library Services (SILS) at 1-888-ASK-USGS, or online through the USGS store at: http://store.usgs.gov. USGS also offers a free product announcement describing the map to anyone needing copies for shows, conferences, etc. Copies are limited. The same ordering procedures apply.
Stock #: 207470 (map) and 207471 (product announcement) Price: $7.00, plus $5.00 handling per order