典型文献
Marine Oxygen Isotope Stage(MIS)-6 Glacial Advances on the Tibetan Plateau More Extensive than during MIS-2 due to More Abundant Precipitation
文献摘要:
Numerous studies dated glacial deposits within the Himalayan-Tibetan orogen.While most focus on young deposits,i.e.,younger than the Last Glacial Maximum(LGM or Marine oxygen Isotope Stage(MIS)-2,~20 ka),older moraines such as those from MIS-6(~130-191 ka)are much harder to date and interpret due to the less well-preserved nature of their surfaces and boulders,as well as their scattered and continuous age distribution due to long-lived erosion since deposition.Here,we dated with 10Be,two imbricated moraines near Yadong in southern Tibet,as MIS-2 and 6,showing that the most extensive,smooth surfaces were abandoned during MIS-6.Compiling published data from 54 MIS-6 moraines on the Tibetan Plateau reveals that they exist in most regions,dry or humid.They are particularly well-preserved(sharp crests)in eastern and northern Tibet,while in southern and central Tibet,their crests are rounded to sub-rounded.Because both MIS-2 and 6 were equally cold,and because MIS-6 moraines are much more extensive than those from the LGM,we conclude that MIS-6 glacial advances were controlled by more abundant precipitation than during MIS-2.This would be consistent with the peak in Asian monsoon during MIS-6,revealed by sediments from the South China Sea.
文献关键词:
中图分类号:
作者姓名:
Marie-Luce CHEVALIER;WANG Shiguang;Anne REPLUMAZ;LI Haibing
作者机构:
Key Laboratory of Deep-Earth Dynamics of Ministry of Natural Resources,Institute of Geology,CAGS,Beijing 100037,China;Jiangsu Donghai Crustal Activity in Deep Holes of the Continental Scientific Drilling National Observation and Research Station,Lianyungang,Jiangsu 222300,China;Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou),Guangzhou 511458,China;National Institute of Natural Hazards,MEMC,Beijing 100037,China;ISTerre,Universite Grenoble Alpes,CNRS,Grenoble 38610,France
文献出处:
引用格式:
[1]Marie-Luce CHEVALIER;WANG Shiguang;Anne REPLUMAZ;LI Haibing-.Marine Oxygen Isotope Stage(MIS)-6 Glacial Advances on the Tibetan Plateau More Extensive than during MIS-2 due to More Abundant Precipitation)[J].地质学报(英文版),2022(05):1484-1494
A类:
Yadong,Compiling,crests
B类:
Marine,Oxygen,Isotope,Stage,MIS,Glacial,Advances,Tibetan,Plateau,More,Extensive,than,during,due,Abundant,Precipitation,Numerous,studies,dated,glacial,deposits,within,Himalayan,orogen,While,most,focus,younger,Last,Maximum,LGM,oxygen,ka,older,moraines,such,those,from,are,much,harder,interpret,less,well,preserved,nature,their,surfaces,boulders,scattered,continuous,distribution,long,lived,erosion,since,deposition,Here,10Be,two,imbricated,near,southern,showing,that,extensive,smooth,were,abandoned,published,data,reveals,they,exist,regions,dry,humid,They,particularly,sharp,eastern,northern,while,central,rounded,sub,Because,both,equally,cold,because,more,conclude,advances,controlled,by,abundant,precipitation,This,would,consistent,peak,Asian,monsoon,revealed,sediments,South,China,Sea
AB值:
0.541618
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