Image:Michigan Basin 2.jpg

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[edit] Summary

A geological map of the Michigan Basin.

Source: Michigan Basin, The North American Tapestry of Time and Terrain, United States Department of the Interior. Text from this web page follows below.

A giant incomplete bull's-eye is centered on the state of Michigan. Radiating outward to Ohio, Indiana, Illinois, Wisconsin, and Ontario, this annular pattern outlines the Michigan Basin. The Basin is a bowl-shaped structure of uncertain origin that contains over 2.5 miles (4 km) of inward-dipping Paleozoic strata and a veneer of Jurassic sedimentary rocks. This curious basin is located in the less tectonically-active interior of the continent, bordered by the Appalachian and Rocky Mountains. It subsided rapidly from Cambrian to Silurian time and filled with shallow-water marine sediments, some of which contain deposits of petroleum, coal, and salt.

[edit] Licensing

Public domain This work is in the public domain in the United States because it is a work of the United States Federal Government under the terms of Title 17, Chapter 1, Section 105 of the US Code. See Copyright.

Note: This only applies to works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision.


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current11:29, 15 June 2007357×360 (47 KB)Avenue ( A geological map of the Michigan Basin. Source: [http://nationalatlas.gov/articles/geology/features/michiganbasin.html Michigan Basin], The North American Tapestry of Time and Terrain, United States Department of the Interior. Text from this web page fo)
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