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Geochemical Records of the Provenance and Silicate Weathering/Erosion From the Eastern Arabian Sea and Their Responses to the Indian Summer Monsoon Since the Mid-Pleistocene
Chen, Hongjin1,2,3,4,5; Xu, Zhaokai1,2,3,4,5; Lim, Dhongil6; Clift, Peter D.7,8; Chang, Fengming1,2,3; Li, Tiegang2,9; Cai, Mingjiang1,2,3,4,5; Wang, Wei1,2,3,4,5; Yu, Zhaojie1,2,3; Sun, Rongtao10
2020-04-01
发表期刊PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
ISSN2572-4517
卷号35期号:4页码:18
通讯作者Xu, Zhaokai(zhaokaixu@qdio.ac.cn) ; Li, Tiegang(tgli@fio.org.cn)
摘要We present a multiproxy record of Sr-Nd isotopes and major and trace elements for clay-sized (<2 mu m) siliciclastic sediment fractions from the International Ocean Discovery Program Site U1456 in the eastern Arabian Sea to extract reliable chemical indicators not influenced by the grain-size effect, quantitatively estimate detrital provenance, and constrain silicate weathering/erosion in response to the Indian summer monsoon over orbital timescales. A provenance analysis of fine-grained siliciclastic sediments indicates a two end-member mixture from the Indus River (20-90%) and rivers draining the Deccan Traps (10-80%). A prominent increase in terrigenous input from the Indus River occurred at similar to 0.5 Ma, probably resulting from an intensive erosional event in the Himalayan region. Moreover, alpha(Al)(K) at Site U1456, which is calculated as Al/K ratio of the study sample versus Al/K ratio of the upper continental crust, can be generally used to reflect the chemical weathering intensity in the source regions. During most interglacial and even certain glacial periods, the Indian summer monsoon reinforcement is closely coupled with enhanced continental chemical weathering and physical erosion. Wavelet and spectral analyses of the alpha(Al)(K) record display strong 125-, 35-, 29-, and 23-kyr periodicities since 1.2 Ma with significant similar to 100-kyr cycles established at the end of the Mid-Pleistocene Transition (similar to 0.7 Ma), suggesting forcing mechanisms linked with both Northern and Southern Hemispheric processes. Significant fluctuations observed in silicate weathering/erosion during similar to 1.2-0.7 Ma indicate an enhancement of the Indian summer monsoon with increased variability in association with the Mid-Pleistocene Transition.
关键词International Ocean Discovery Program Site U1456 eastern Arabian Sea major and trace elements Sr-Nd isotopes Indian summer monsoon
DOI10.1029/2019PA003732
收录类别SCI
语种英语
资助项目National Natural Science Foundation of China[41676038] ; National Natural Science Foundation of China[41876034] ; National Natural Science Foundation of China[41830539] ; Scientific and Technological Innovation Project - Qingdao National Laboratory for Marine Science and Technology[2016ASKJ13] ; Taishan Scholars Project Funding ; National Special Project for Global Change and Air-Sea Interaction[GASI-GEOGE-02] ; National Special Project for Global Change and Air-Sea Interaction[GASI-GEOGE-04] ; National Special Project for Global Change and Air-Sea Interaction[GASI-GEOGE-06-02] ; Korea Institute of Ocean Science and Technology research program by Ministry of Oceans and Fisheries, Korea[PM61310] ; Shandong Provincial Natural Science Foundation, China[ZR2016DM12]
WOS研究方向Geology ; Oceanography ; Paleontology
WOS类目Geosciences, Multidisciplinary ; Oceanography ; Paleontology
WOS记录号WOS:000530459500001
出版者AMER GEOPHYSICAL UNION
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被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/167380
专题海洋地质与环境重点实验室
通讯作者Xu, Zhaokai; Li, Tiegang
作者单位1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Geol & Environm, Qingdao, Peoples R China
2.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Geol, Qingdao, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China
4.CAS Ctr Excellence Quaternary Sci & Global Change, Xian, Peoples R China
5.Univ Chinese Acad Sci, Beijing, Peoples R China
6.Korea Inst Ocean Sci & Technol, South Sea Res Inst, Geoje, South Korea
7.Louisiana State Univ, Dept Geol & Geophys, Baton Rouge, LA 70803 USA
8.A&M Coll, Baton Rouge, LA USA
9.Minist Natl Resources, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao, Peoples R China
10.Shandong Univ Technol, Sch Resources & Environm Engn, Zibo, Peoples R China
第一作者单位中国科学院海洋研究所
通讯作者单位中国科学院海洋研究所
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Chen, Hongjin,Xu, Zhaokai,Lim, Dhongil,et al. Geochemical Records of the Provenance and Silicate Weathering/Erosion From the Eastern Arabian Sea and Their Responses to the Indian Summer Monsoon Since the Mid-Pleistocene[J]. PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY,2020,35(4):18.
APA Chen, Hongjin.,Xu, Zhaokai.,Lim, Dhongil.,Clift, Peter D..,Chang, Fengming.,...&Sun, Rongtao.(2020).Geochemical Records of the Provenance and Silicate Weathering/Erosion From the Eastern Arabian Sea and Their Responses to the Indian Summer Monsoon Since the Mid-Pleistocene.PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY,35(4),18.
MLA Chen, Hongjin,et al."Geochemical Records of the Provenance and Silicate Weathering/Erosion From the Eastern Arabian Sea and Their Responses to the Indian Summer Monsoon Since the Mid-Pleistocene".PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY 35.4(2020):18.
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