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Minnesota at a Glance Quaternary Glacial Geology
Lusardi, B.A. (Minnesota Geological Survey, 1997)

Minnesota at a Glance Quaternary Glacial Geology


Issue Date

Minnesota Geological Survey


The Quaternary Period began about 2 million years ago. It is divided into the Pleistocene Epoch (2 million to 10,000 years ago) and the Holocene Epoch (10,000 years ago to present). Although 2 million years is a relatively short period of time geologically, sediments deposited during this time mask nearly all of Minnesota's previous geologic history (as old as 3600 million years!). The Pleistocene, also called the Ice Age, is the time when the Laurentide Ice Sheet covered much of northern North America. Minnesota was at the edge of the ice sheet, and thus was not always completely covered with ice. Instead, Minnesota experienced several episodes of glaciation followed by ice-free periods.

Appears in Collection(s)

Series/Report Number
Minnesota at a Glance
Quaternary Glacial Geology

Short summary of Quaternary glacial geology in Minnesota

Suggested Citation
Lusardi, B.A.. (1997). Minnesota at a Glance Quaternary Glacial Geology. Minnesota Geological Survey. Retrieved from the University of Minnesota Digital Conservancy,

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