Minnesota at a Glance Quaternary Glacial Geology

Lusardi, B.A.
Dengler, E.L.
2017, 1997
Thumbnail Image

View/Download File

mn glance quat2021.pdf (573.88 KB)
Geologia Glacial del Cuaternario2021.pdf (526.33 KB)
mn glance quat.pdf (678.52 KB)
Geología Glacial del Cuaternario.pdf (433.31 KB)
Mn_Quaternary.pdf (4.78 MB)

Persistent link to this item

http://purl.umn.edu/59427
Statistics
View Statistics

Journal Title

Journal ISSN

Volume Title

Title

Minnesota at a Glance Quaternary Glacial Geology

Authors

Published Date

2017, 1997

Publisher

Minnesota Geological Survey

Type

Report

Abstract

The Quaternary Period, which began about 2.5 million years ago, is divided into the Pleistocene Epoch (2.5 million to 11,700 years ago) and the Holocene Epoch (11,700 years ago to the present). Although 2.5 million years is a relatively short period of time geologically, sediments deposited during this time mask nearly all of Minnesota's previous geologic history (over 3.6 billion years!). The Pleistocene Epoch, also called the Ice Age, is marked by a series of glacial (cold) and interglacial (warm) periods. Though the Laurentide Ice Sheet (Fig. 1) covered much of northern North America throughout the Pleistocene Epoch, during interglacial periods margins of the ice sheet likely retreated significantly. Because Minnesota was at the edge of the ice sheet, it was not always completely covered with ice during glacial periods. Instead, Minnesota experienced numerous episodes of glaciation followed by ice-free periods.

Keywords

Description

Short summary of Quaternary glacial geology in Minnesota. Issued in 1997, updated 2017, minor update 2021.

Related to

Replaces

License

Collections

Minnesota Geological Survey Miscellaneous Publications

Series/Report Number

Minnesota at a Glance
 Quaternary Glacial Geology

Funding information

Isbn identifier

Doi identifier

Previously Published Citation

Suggested citation

Lusardi, B.A.; Dengler, E.L.. (2017). Minnesota at a Glance Quaternary Glacial Geology. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/59427.

Content distributed via the University Digital Conservancy may be subject to additional license and use restrictions applied by the depositor. By using these files, users agree to the Terms of Use. Materials in the UDC may contain content that is disturbing and/or harmful. For more information, please see our statement on harmful content in digital repositories.