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Neogene basins in western Nevada document the tectonic history of the Sierra Nevada-Basin and Range transition zone for the last 12 Ma

By
J.H. Trexler, Jr.
J.H. Trexler, Jr.
Department of Geological Sciences, University of Nevada, Reno, Nevada 89557 USA
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P. H. Cashman
P. H. Cashman
Department of Geological Sciences, University of Nevada, Reno, Nevada 89557 USA
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C.D. Henry
C.D. Henry
Nevada Bureau of Mines and Geology, Reno, Nevada 89557 USA
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T. Muntean
T. Muntean
Department of Geological Sciences, University of Nevada, Reno, Nevada 89557 USA
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K. Schwartz
K. Schwartz
Department of Geological Sciences, University of Nevada, Reno, Nevada 89557 USA
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A. TenBrink
A. TenBrink
Department of Geological Sciences, University of Nevada, Reno, Nevada 89557 USA
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J.E. Faulds
J.E. Faulds
Nevada Bureau of Mines and Geology
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M. Perkins
M. Perkins
University of Utah
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T. Kelly
T. Kelly
Natural History Museum of Los Angeles County
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Published:
January 01, 2000

Abstract

Neogene sedimentary rocks, largely lacustrine and fluvial, were deposited in many areas of western Nevada and easternmost California, more or less continuously from ~12 Ma-3 Ma. These sediments were deposited on a surface of moderate primary relief developed on underlying Miocene volcanic rocks, and depositional facies are laterally variable, with sedimentation beginning and ending at different times in different areas. About 3 Ma, the basin system began to break up structurally, with strike-slip, oblique-slip and normal faulting, and local uplift. Modern topography inverts many original highs and lows. Stratigraphy and structure of Neogene strata document the progressive shut-down of the Neogene Cascade arc, the evolution of transtensional tectonics in the Walker Lane, and the encroachment of extensional faulting into the eastern Sierra Nevada.

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Contents

GSA Field Guide

Great Basin and Sierra Nevada

David R. Lageson
David R. Lageson
Department of Earth Sciences Montana State University Bozeman, MT 59717 USA
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Stephen G. Peters
Stephen G. Peters
Reno Field Office Mackay School of Mines, MS-176 University of Nevada Reno, Nevada 89557-0047 USA
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Mary M. Lahren
Mary M. Lahren
Department of Geological Sciences MS-l72 University of Nevada Reno, Nevada 89557 USA 2000
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Geological Society of America
Volume
2
ISBN electronic:
9780813756028
Publication date:
January 01, 2000

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