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From dust to dust; Quaternary wind erosion of the Mu Us Desert and Loess Plateau, China

Paul Kapp, Alex Pullen, Jon D. Pelletier, Joellen Russell, Paul Goodman and Fulong Cai
From dust to dust; Quaternary wind erosion of the Mu Us Desert and Loess Plateau, China
Geology (Boulder) (July 2015) 43 (9): 835-838

Abstract

The Ordos Basin of China encompasses the Mu Us Desert in the northwest and the Chinese Loess Plateau to the south and east. The boundary between the mostly internally drained Mu Us Desert and fluvially incised Loess Plateau is an erosional escarpment, up to 400 m in relief, composed of Quaternary loess. Linear ridges, with lengths of approximately 10 (super 2) -10 (super 3) m, are formed in Cretaceous-Quaternary strata throughout the basin. Ridge orientations are generally parallel to near-surface wind vectors in the Ordos Basin during modern winter and spring dust storms. Our observations suggest that the Loess Plateau previously extended farther to the north and west of its modern windward escarpment margin and has been partially reworked by eolian processes. The linear topography, Mu Us Desert internal drainage, and escarpment retreat are all attributed to wind erosion, the aerial extent of which expanded southeastward in China in response to Quaternary amplification of Northern Hemisphere glaciation.


ISSN: 0091-7613
EISSN: 1943-2682
Coden: GLGYBA
Serial Title: Geology (Boulder)
Serial Volume: 43
Serial Issue: 9
Title: From dust to dust; Quaternary wind erosion of the Mu Us Desert and Loess Plateau, China
Affiliation: University of Arizona, Department of Geosciences, Tucson, AZ, United States
Pages: 835-838
Published: 20150728
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 25
Accession Number: 2015-079075
Categories: Quaternary geology
Document Type: Serial
Bibliographic Level: Analytic
Annotation: GSA Data Repository item 2015283
Illustration Description: illus. incl. sketch map
N34°00'00" - N41°00'00", E106°30'00" - E111°00'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2022, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 201534
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