Minnesota's Geology

Front Cover
U of Minnesota Press, 1982 - 255 pages
Have you ever wondered how the Mississippi River was formed? Or why shark teeth have been found in the Iron Range of the Upper Midwest? Towering mountain ranges, explosive volcanoes, expansive glaciers, and long-extinct forms of both land and sea life were an important part of Minnesota's ancient history. Today the evidence of this remarkable heritage is revealed in the state's rocky outcroppings, stony soils, and thousands of lakes.
 

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Contents

The Briefing
3
Minnesotas Place in Geologic History
15
Early Precambrian Time 4500 to 2500 Million Years Ago
23
Middle Precambrian Time 2500 to 1600 Million Years Ago
35
Late Precambrian Time 1600 to 600 Million Years Ago
47
PostPrecambrian Time 600 to 2 Million Years Ago
63
The Quaternary Period 2 Million Years Ago to the Present
97
Metallic Minerals
123
Northeastern Minnesota
159
Northwestern Minnesota
197
Central Minnesota
209
Southwestern Minnesota
221
Southeastern Minnesota
231
Bibliography
245
Index
251
Copyright

Nonmetals Fuels and Water
149

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About the author (1982)

Charles L. Matsch is a professor in the Department of Geological Sciences at the University of Minnesota, Duluth.

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