Science Fair Project Encyclopedia
Geology of the United States of America
The geology of the United States, like most topics of scientific study, is undergoing progressive investigation by numerous public- and private-sector earth scientists, academicians, and students. In that regard, the detailed picture is subject to revision and change as knowledge advances. At present, a very good overview of USA geology can be found at the United States Geological Survey web link, below.
External links
Related images
 North America bedrock and terrain. |
 North American cratons and basement rocks. |
 The maximum extent of glacial ice in the north polar area during Pleistocene time. |
 Generalized geographic map of the United States in Late Cretaceous time. |
 Generalized geographic map of the United States in Middle Pennsylvanian time. |
03-10-2013 05:06:04
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details