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Expansion of Dust Provenance and Aridification of Asia Since similar to 7.2 Ma Revealed by Detrital Zircon U-Pb Dating
Zhang, Hanzhi1,2; Lu, Huayu1,2; Stevens, Thomas3; Feng, Han1; Fu, Yu1,4; Geng, Junyan1,4; Wang, Hanlin1
2018-12-28
发表期刊GEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
卷号45期号:24页码:13437-13448
摘要The relative importance of global cooling and Tibetan Plateau uplift in driving the aridification of Asia during the late Cenozoic is debated, largely due to the lack of appropriate proxy indicators. Here we address this problem by investigating changes in the source of Chinese loess and Red Clay, which is directly controlled by changes in the extent and distribution of the arid zone of Asia and the intensity of the East Asian winter monsoon, using zircon U-Pb dating of 27 levels in a near-continuous eolian sedimentary sequence in southern Chinese Loess Plateau. The results show that source regions expanded stepwise at similar to 7.2, similar to 2.6, 1.2-0.9Ma, and at the Last Glacial Maximum. These changes were synchronous with global cooling and ice cover expansion in the Northern Hemisphere, suggesting that the drivers of aridification of the Asian interior were intimately related to global cooling in the late Cenozoic. Plain Language Summary The arid and semiarid regions of Central Asia are one of the most important dust sources on Earth. Dust emitted from these regions is deposited in the Chinese Loess Plateau, the North Pacific Ocean, and even in Greenland, with broad environmental impacts. Although there is evidence that the drying of the Asian interior occurred gradually over several tens of million years, the driving factor remains unclear. Here we investigate the evolution of the sediment sources of the Chinese Loess Plateau and find that the changes in the source regions of wind-blown sediment were synchronous with global cooling since similar to 7.2 Ma. This indicates that the long-term aridification of the Asian interior was most likely driven by global cooling.
DOI10.1029/2018GL079888
资助者National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities
关键词[WOS]CHINESE LOESS PLATEAU ; LA-ICP-MS ; RED CLAY DEPOSITS ; NORTHERN TIBETAN PLATEAU ; PORPHYRY MO DEPOSIT ; GRAIN-SIZE ; QILIAN MOUNTAINS ; TRACE-ELEMENT ; TIANSHUI AREA ; PHASED UPLIFT
语种英语
资助项目National Natural Science Foundation of China[41690111] ; National Key Research and Development Program of China[2016YFA0600503] ; National Key Research and Development Program of China[2016YFE0109500] ; Fundamental Research Funds for the Central Universities
资助者National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000456404600029
出版者AMER GEOPHYSICAL UNION
引用统计
文献类型期刊论文
条目标识符http://ir.iggcas.ac.cn/handle/132A11/90205
专题其他部门
通讯作者Lu, Huayu
作者单位1.Nanjing Univ, Sch Geog & Ocean Sci, Nanjing, Jiangsu, Peoples R China
2.Jiangsu Collaborat Innovat Ctr Climate Change, Nanjing, Jiangsu, Peoples R China
3.Uppsala Univ, Dept Earth Sci, Uppsala, Sweden
4.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China
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Zhang, Hanzhi,Lu, Huayu,Stevens, Thomas,et al. Expansion of Dust Provenance and Aridification of Asia Since similar to 7.2 Ma Revealed by Detrital Zircon U-Pb Dating[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(24):13437-13448.
APA Zhang, Hanzhi.,Lu, Huayu.,Stevens, Thomas.,Feng, Han.,Fu, Yu.,...&Wang, Hanlin.(2018).Expansion of Dust Provenance and Aridification of Asia Since similar to 7.2 Ma Revealed by Detrital Zircon U-Pb Dating.GEOPHYSICAL RESEARCH LETTERS,45(24),13437-13448.
MLA Zhang, Hanzhi,et al."Expansion of Dust Provenance and Aridification of Asia Since similar to 7.2 Ma Revealed by Detrital Zircon U-Pb Dating".GEOPHYSICAL RESEARCH LETTERS 45.24(2018):13437-13448.
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