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New investigations of Pleistocene glacial and pluvial records in northeastern Nevada

By
Jeffrey S. Munroe
Jeffrey S. Munroe
Geology Department, Middlebury College, Middlebury, Vermont 05753, USA
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Benjamin J.C. Laabs
Benjamin J.C. Laabs
Department of Geological Sciences, State University of New York–Geneseo, Geneseo, New York 14454, USA
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Published:
January 01, 2011

Abstract

The Great Basin of the western United States offers tremendous potential for exploring the response of mountain glaciers and lowland lakes to climate changes during the Last Glacial Maximum (LGM, MIS-2, ca. 22–18 ka B.P.) and subsequent glacial-interglacial transition. The combination of well-distributed alpine moraine records and pluvial lake deposits offers an unparalleled opportunity to develop a more precise understanding of temperature and precipitation changes during the latest Pleistocene and into the Holocene. This field trip provides an overview of recent and ongoing work illuminating aspects of the glacial and pluvial history of northeastern Nevada from the LGM to the present. The route of this trip involves three full days of stops separated by two nights in Elko, Nevada. The first day focuses on glacial deposits at the type locality for the LGM Angel Lake Glaciation on the eastern side of the East Humboldt Range. The second day explores the geomorphic record of pluvial Lakes Franklin and Clover on the east side of the Ruby–East Humboldt Mountains and describes recent efforts to develop a chronology for the late Pleistocene regression of these lakes. The final day again focuses on glacial geology, starting with the type locality of the pre-LGM Lamoille Glaciation on the west side of the Ruby Mountains, and ending with several stops along the scenic drive up Lamoille Canyon.

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Contents

GSA Field Guide

Geologic Field Trips to the Basin and Range, Rocky Mountains, Snake River Plain, and Terranes of the U.S. Cordillera

Jeffrey Lee
Jeffrey Lee
Department of Geological Sciences 400 E. University Way Central Washington University Ellensburg, Washington 98926 USA
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James P. Evans
James P. Evans
Department of Geology Utah State University 4505 Old Main Hill Logan, Utah 84322-4505 USA
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Geological Society of America
Volume
21
ISBN electronic:
9780813756219
Publication date:
January 01, 2011

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