中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
History and variability of Asian interior aridity recorded by eolian flux in the Chinese Loess Plateau during the past 7 Ma

文献类型:期刊论文

作者Sun, YB; An, ZS
刊名SCIENCE IN CHINA SERIES D-EARTH SCIENCES
出版日期2002-05
卷号45期号:5页码:420-429
关键词eolian flux Asian interior aridity Chinese Loess Plateau
DOI10.1360/02yd9044
文献子类Article
英文摘要Eolian flux in the Chinese Loess Plateau was reconstructed by measuring the dry bulk density and CaCO3 content of the late Cenozoic loess-paleosol-red clay sequences in the Lingtai profile. Comparison of eolian flux variation between the Lingtai profile and the ODP sites 885/886 in the North Pacific shows a significant wet-dry variability in addition to a gradual drying trend in the dust source regions in interior Asia. Especially, the increase of eolian fluxes from both continental and pelagic eolian sediments indicates a sharp drying of the dust source regions between 3.6 and 2.6 MaBP, which might be attributed to the tectonic uplift of the Tibetan Plateau, which cut down the moisture input to the interior Asia. The average value and variability of eolian flux are higher after 2.6 MaBP than before, which may be related to the Quaternary climatic fluctuations on the glacial-interglacial timescale after the commencement of major Northern Hemisphere Glaciations. The eolian fluxes of the Lingtai profile and Core V21-146 in northwest Pacific show a synchronous variation on the 10(4)-10(5) a timescale, indicating that the flux variations from both continental and marine records are closely correlated to the Quaternary climatic fluctuation forced by the ice volume changes on a global scale.
学科主题Geology
WOS关键词QINGHAI-XIZANG PLATEAU ; NORTHERN-HEMISPHERE ; UPLIFT ; MAGNETOSTRATIGRAPHY ; CIRCULATION ; GLACIATION ; DEPOSITION ; SEQUENCES ; CLIMATE ; PACIFIC
WOS研究方向Geosciences, Multidisciplinary
语种英语
WOS记录号WOS:000175138000005
出版者SCIENCE CHINA PRESS
源URL[http://ir.ieecas.cn/handle/361006/11944]  
专题黄土与第四纪地质国家重点实验室(1985-2004)
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GB/T 7714
Sun, YB,An, ZS. History and variability of Asian interior aridity recorded by eolian flux in the Chinese Loess Plateau during the past 7 Ma[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2002,45(5):420-429.
APA Sun, YB,&An, ZS.(2002).History and variability of Asian interior aridity recorded by eolian flux in the Chinese Loess Plateau during the past 7 Ma.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,45(5),420-429.
MLA Sun, YB,et al."History and variability of Asian interior aridity recorded by eolian flux in the Chinese Loess Plateau during the past 7 Ma".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 45.5(2002):420-429.

入库方式: OAI收割

来源:地球环境研究所

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