| 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
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| 2019-09-01 | |
| 发表期刊 | GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
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| 卷号 | 20期号:9页码:4336-4353 |
| 通讯作者 | Xu, Zhaokai([email protected]) ; Li, Tiegang([email protected]) |
| 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 |
| DOI | 10.1029/2018GC008157 |
| 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 |
| 引用统计 | |
| 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 |
| 推荐引用方式 GB/T 7714 | 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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