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GEOREF RECORD

Elk Lake in perspective

Roger Y. Anderson, Walter E. Dean and J. Platt Bradbury
Elk Lake in perspective (in Elk Lake, Minnesota; evidence for rapid climate change in the north-central United States, J. Platt Bradbury (editor) and Walter E. Dean (editor))
Special Paper - Geological Society of America (1993) 276: 1-6

Abstract

Elk Lake is located in the forested region of north-central Minnesota at the headwaters of the Mississippi River and occupies one of countless basins left behind as the last great Pleistocene ice sheet retreated northward into Canada. In this respect it resembles many other moderately deep, dimictic, hard-water lakes in the north-central United States, the sediments of which contain a history of postglacial and Holocene climatic and environmental change. Elk Lake is different, however, because the Holocene sediments in the deeper part of the lake form an uninterrupted sequence of annual laminations or varves. The varves are a chronometer for timing precisely the biologic, geochemical, and sedimentological responses in the lake to cyclic and progressive changes in climate. The varves also, through profound changes in their composition, divide the history of Elk Lake into three, sharply defined episodes; a postglacial lake, a prairie lake, and a modern, mesic-forest lake. We use these episodes and the character of the varves as a framework to guide the reader to the chapters and discussions found in this volume.


ISSN: 0072-1077
EISSN: 2331-219X
Coden: GSAPAZ
Serial Title: Special Paper - Geological Society of America
Serial Volume: 276
Title: Elk Lake in perspective
Title: Elk Lake, Minnesota; evidence for rapid climate change in the north-central United States
Author(s): Anderson, Roger Y.Dean, Walter E.Bradbury, J. Platt
Author(s): Bradbury, J. Platteditor
Author(s): Dean, Walter E.editor
Affiliation: University of New Mexico, Department of Earth and Planetary Sciences, Albuquerque, NM, United States
Affiliation: U. S. Geological Survey, Denver, CO, United States
Pages: 1-6
Published: 1993
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
ISBN: 0-8137-2276-4
References: 5
Accession Number: 1993-033210
Categories: Quaternary geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. sketch maps
N47°08'60" - N48°01'60", W95°34'60" - W95°10'00"
Secondary Affiliation: U. S. Geological Survey, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute.
Update Code: 1993
Program Name: USGSOPNon-USGS publications with USGS authors
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