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Late Miocene-Pliocene Asian monsoon intensification linked to Antarctic ice-sheet growth
Ao, Hong1; Roberts, Andrew P.2; Dekkers, Mark J.3; Liu, Xiaodong1; Rohling, Eelco J.2,4; Shi, Zhengguo1; An, Zhisheng1; Zhao, Xiang2
2016-06-15
发表期刊EARTH AND PLANETARY SCIENCE LETTERS
卷号444期号:2016页码:75-87
文章类型Article
摘要Environmental conditions in one of Earth's most densely populated regions, East Asia, are dominated by the monsoon. While Quaternary monsoon variability is reasonably well understood, pre-Quaternary monsoon variability and dynamics remain enigmatic. In particular, little is known about potential relationships between northern hemispheric monsoon response and major Cenozoic changes in Antarctic ice cover. Here we document long-term East Asian summer monsoon (EASM) intensification through the Late Miocene-Pliocene (similar to 8.2 to 2.6 Ma), and attribute this to progressive Antarctic glaciation. Our new high-resolution magnetic records of long-term EASM intensification come from the Late Miocene-Pliocene Red Clay sequence on the Chinese Loess Plateau; we identify underlying mechanisms using a numerical climate-model simulation of EASM response to an idealized stepwise increase in Antarctic ice volume. We infer that progressive Antarctic glaciation caused intensification of the cross-equatorial pressure gradient between an atmospheric high-pressure cell over Australia and a low-pressure cell over mid-latitude East Asia, as well as intensification of the cross-equatorial sea-surface temperature (SST) gradient. These combined atmospheric and oceanic adjustments led to EASM intensification. Our findings offer a new and more global perspective on the controls behind long-term Asian monsoon evolution. (C) 2016 Elsevier B.V. All rights reserved.
关键词Environmental Magnetism East Asian Monsoon Chinese Loess Plateau Red Clay Late Miocene-pliocene Antarctic Glaciation
WOS标题词Science & Technology ; Physical Sciences
DOI10.1016/j.epsl.2016.03.028
关键词[WOS]CHINESE LOESS PLATEAU ; REVERSAL CURVE DIAGRAMS ; LATE CENOZOIC UPLIFT ; RED-CLAY SEQUENCE ; TIBETAN PLATEAU ; MAGNETIC-SUSCEPTIBILITY ; PALEOCLIMATIC SIGNIFICANCE ; ENVIRONMENTAL MAGNETISM ; EOLIAN SEDIMENTS ; CLIMATE-CHANGE
收录类别SCI
语种英语
WOS研究方向Geochemistry & Geophysics
WOS类目Geochemistry & Geophysics
WOS记录号WOS:000375818800008
引用统计
被引频次:86[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5783
专题古环境研究室
作者单位1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
2.Australian Natl Univ, Res Sch Earth Sci, GPO Box 4, Canberra, ACT 2601, Australia
3.Univ Utrecht, Fac Geosci, Dept Earth Sci, Paleomagnet Lab Ft Hoofddijk, Budapestlaan 17, NL-3584 CD Utrecht, Netherlands
4.Univ Southampton, Natl Oceanog Ctr, Ocean & Earth Sci, Southampton SO14 3ZH, Hants, England
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Ao, Hong,Roberts, Andrew P.,Dekkers, Mark J.,et al. Late Miocene-Pliocene Asian monsoon intensification linked to Antarctic ice-sheet growth[J]. EARTH AND PLANETARY SCIENCE LETTERS,2016,444(2016):75-87.
APA Ao, Hong.,Roberts, Andrew P..,Dekkers, Mark J..,Liu, Xiaodong.,Rohling, Eelco J..,...&Zhao, Xiang.(2016).Late Miocene-Pliocene Asian monsoon intensification linked to Antarctic ice-sheet growth.EARTH AND PLANETARY SCIENCE LETTERS,444(2016),75-87.
MLA Ao, Hong,et al."Late Miocene-Pliocene Asian monsoon intensification linked to Antarctic ice-sheet growth".EARTH AND PLANETARY SCIENCE LETTERS 444.2016(2016):75-87.
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