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Depositional History and Indian Summer Monsoon Controls on the Silicate Weathering of Sediment Transported to the Eastern Arabian Sea: Geochemical Records From IODP Site U1456 Since 3.8 Ma
Cai, Mingjiang1,2,3,4,5; Xu, Zhaokai1,2,3,4,5; Clift, Peter D.6; Lim, Dhongil7; Khim, Boo-Keun8; Yu, Zhaojie1,2,3; Kulhanek, Denise K.9; Li, Tiegang2,10; Chen, Hongjin1,2,3,4,5; Sun, Rongtao11
2019-09-01
发表期刊GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
卷号20期号:9页码:4336-4353
通讯作者Xu, Zhaokai(zhaokaixu@qdio.ac.cn) ; Li, Tiegang(tgli@fio.org.cn)
摘要Systematic variation in elemental and Sr-Nd isotopic compositions of the clay-sized (<2 mu m) siliciclastic fraction from the International Ocean Discovery Program (IODP) Site U1456 (Laxmi Basin) provides valuable insights into dynamic changes in continental weathering intensity in the western Himalayas and sediment inputs from the Indus River and Deccan Traps to the eastern Arabian Sea. Long-term, high-resolution proxy records from the sediment core reveal that the main sources (i.e., Indus River and Deccan Trap basalts) of the fine-grained detrital sediments have significantly changed with Indian summer monsoon variation over the studied time interval. During two depositional periods (3.8-3.3 and 2.7-1.2 Ma) corresponding to a weak Indian summer monsoon, the Indus River contributed fine-grained sediments with high K/Al, high Sr-87/Sr-86, and low epsilon Nd to the study site. Between 3.3 and 2.7 Ma and between 1.2 and 0 Ma, deposition in the eastern Arabian Sea was governed by large inputs of Deccan Trap-derived basaltic sediments, characterized by high Mg/Al and Fe/Al, low Sr-87/Sr-86 and chemical index of alteration values, and high epsilon Nd values, associated with a change to a stronger Indian summer monsoon driving stronger chemical weathering. Synchronous changes in the geochemical proxies since 3.8 Ma highlight that variations in the inputs of siliciclastic sediments and Indian summer monsoon development are closely coupled.
关键词IODP Site U1456 International Ocean Discovery Program Arabian Sea Indus River geochemical records Indian summer monsoon
DOI10.1029/2018GC008157
收录类别SCI
语种英语
资助项目International Ocean Discovery Program
WOS研究方向Geochemistry & Geophysics
WOS类目Geochemistry & Geophysics
WOS记录号WOS:000491489300003
出版者AMER GEOPHYSICAL UNION
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被引频次:11[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/337002/164812
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, Shandong, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Shandong, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Shandong, Peoples R China
4.CAS Ctr Excellence Quaternary Sci & Global Change, Xian, Shaanxi, Peoples R China
5.Univ Chinese Acad Sci, Beijing, Peoples R China
6.Louisiana State Univ, Dept Geol & Geophys, Baton Rouge, LA 70803 USA
7.Korea Inst Ocean Sci & Technol, South Sea Res Inst, Geoje, South Korea
8.Pusan Natl Univ, Dept Oceanog, Busan, South Korea
9.Texas A&M Univ, Int Ocean Discovery Program, College Stn, TX USA
10.Minist Natl Resources, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao, Shandong, Peoples R China
11.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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Cai, Mingjiang,Xu, Zhaokai,Clift, Peter D.,et al. Depositional History and Indian Summer Monsoon Controls on the Silicate Weathering of Sediment Transported to the Eastern Arabian Sea: Geochemical Records From IODP Site U1456 Since 3.8 Ma[J]. GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,2019,20(9):4336-4353.
APA Cai, Mingjiang.,Xu, Zhaokai.,Clift, Peter D..,Lim, Dhongil.,Khim, Boo-Keun.,...&Sun, Rongtao.(2019).Depositional History and Indian Summer Monsoon Controls on the Silicate Weathering of Sediment Transported to the Eastern Arabian Sea: Geochemical Records From IODP Site U1456 Since 3.8 Ma.GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,20(9),4336-4353.
MLA Cai, Mingjiang,et al."Depositional History and Indian Summer Monsoon Controls on the Silicate Weathering of Sediment Transported to the Eastern Arabian Sea: Geochemical Records From IODP Site U1456 Since 3.8 Ma".GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS 20.9(2019):4336-4353.
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