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Book Chapter

The Quaternary geology of the southern Chicago metropolitan area: The Chicago outlet, morainic systems, glacial chronology, and Kankakee Torrent

By
B. Brandon Curry
B. Brandon Curry
Illinois State Geological Survey, 615 E. Peabody, Champaign, Illinois 61820, USA
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Olivier J. Caron
Olivier J. Caron
Illinois State Geological Survey, 615 E. Peabody, Champaign, Illinois 61820, USA
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Jason F. Thomason
Jason F. Thomason
Illinois State Geological Survey, 615 E. Peabody, Champaign, Illinois 61820, USA
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Published:
December 10, 2018
Publication history
05 September 2018

ABSTRACT

The Eagle Lake basin was formed by collapse of the ablating Lake Michigan lobe over a tunnel valley and subsequent reoccupation of the collapse basin by the lobe during local final phase of glaciation. Latest collapse occurred prior to about 16,250 but after 18,600 cal yr B.P. A hydrologically open lake occupied Eagle Lake basin from 16,250 cal yr B.P. to the present. The lake was described in 1834 by the original land survey, but was drained for agriculture by 1939.

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GSA Special Papers

Ancient Oceans, Orogenic Uplifts, and Glacial Ice: Geologic Crossroads in America’s Heartland

Lee J. Florea
Lee J. Florea
Indiana Geological and Water Survey Indiana University 611 N. Walnut Grove Avenue Bloomington, Indiana 47405, USA
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Geological Society of America
Volume
51
ISBN electronic:
9780813756516
Publication date:
December 10, 2018

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