Arid
DOI10.1016/j.yqres.2015.11.007
Environmental history recorded in aeolian deposits under stone pavements, Mojave Desert, USA
Dietze, Michael1; Dietze, Elisabeth2; Lomax, Johanna3; Fuchs, Markus3; Kleber, Arno4; Wells, Stephen G.5
通讯作者Dietze, Michael
来源期刊QUATERNARY RESEARCH
ISSN0033-5894
EISSN1096-0287
出版年2016
卷号85期号:1页码:4-16
英文摘要

Reconstructing the evolution of arid landscapes is challenged by limited availability of appropriate environmental archives. A widespread surface feature - stone pavement - traps aeolian fines and forms a special accretionary archive. Seven stone pavement-covered sections on basalt flows in the eastern Mojave Desert are condensed into a composite section, comprising five sedimentological units supported by an OSL-based chronology. Three of the units are of accretionary nature and each is covered by a stone pavement. They were deposited >50.9-36.6 ka, <36.6-14.2 ka and <14.2 ka, and they are intimately coupled with the history of nearby Lake Mojave, which advances the current understanding of regional aeolian activity. End-member modeling analysis of grain-size distributions yielded seven sediment transport regimes. The accretionary system operates in two modes: A) episodic formation of a stone pavement by lateral processes once-a vesicular horizon has formed on a barren surface; and B) accretion of dust and eventual burial of the clast layer. These findings improve current concepts about stone pavement evolution and their environmental proxy function in arid landscapes. Stone pavement-covered accretionary deposits are a new key archive that allows quantifying the relative importance of dust accretion, slope processes, soil formation and vegetation cover. (C) 20015 University of Washington. Published by Elsevier Inc. All rights reserved.


英文关键词Quaternary OSL dating Grain-size end-member modeling EMMA Eastern Mojave Desert
类型Article
语种英语
国家Germany ; USA
收录类别SCI-E
WOS记录号WOS:000371190900002
WOS关键词CIMA-VOLCANIC-FIELD ; ROCK-VARNISH MICROSTRATIGRAPHY ; ALLUVIAL-FAN SURFACES ; GRAIN-SIZE ; LAKE MANIX ; LANDSCAPE EVOLUTION ; SOIL DEVELOPMENT ; TIBETAN PLATEAU ; GREAT-BASIN ; SAND RAMPS
WOS类目Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向Physical Geography ; Geology
来源机构Desert Research Institute
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/195837
作者单位1.GFZ German Res Ctr Geosci, Sect Geomorphol 5 1, Telegrafenberg Bldg F, D-14473 Potsdam, Germany;
2.GFZ German Res Ctr Geosci, Sect Climate Dynam & Landscape Evolut 5 2, Telegrafenberg Bldg F, D-14473 Potsdam, Germany;
3.Univ Giessen, Dept Geog, Senckenbergstr 1, D-35390 Giessen, Germany;
4.Tech Univ Dresden, Inst Geog, Helmholtzstr 10, D-01069 Dresden, Germany;
5.Desert Res Inst, 2215 Raggio Pkwy, Reno, NV 89512 USA
推荐引用方式
GB/T 7714
Dietze, Michael,Dietze, Elisabeth,Lomax, Johanna,et al. Environmental history recorded in aeolian deposits under stone pavements, Mojave Desert, USA[J]. Desert Research Institute,2016,85(1):4-16.
APA Dietze, Michael,Dietze, Elisabeth,Lomax, Johanna,Fuchs, Markus,Kleber, Arno,&Wells, Stephen G..(2016).Environmental history recorded in aeolian deposits under stone pavements, Mojave Desert, USA.QUATERNARY RESEARCH,85(1),4-16.
MLA Dietze, Michael,et al."Environmental history recorded in aeolian deposits under stone pavements, Mojave Desert, USA".QUATERNARY RESEARCH 85.1(2016):4-16.
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