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学科主题: Oceanography
题名: Modern transport and deposition of settling particles in the northern South China Sea: Sediment trap evidence adjacent to Xisha Trough
其他题名: mannual of IR
作者: Liu, JG ; Clift, PD ; Yan, W ; Chen, Z ; Chen, H ; Xiang, R ; Wang, DX
通讯作者: jgliu@scsio.ac.cn
关键词: Sediment trap ; Total particle flux ; Clay mineral ; Sediment source ; Deep water current ; Coastal currents ; South China Sea
刊名: DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
发表日期: 2014
卷: 93, 页:145-155
收录类别: sci
合作性质: 填入合作性质等
部门归属: [Liu, Jianguo ; Clift, Peter D. ; Yan, Wen ; Chen, Zhong ; Chen, Han ; Xiang, Rong] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China ; [Clift, Peter D.] Louisiana State Univ, Dept Geol & Geophys, Baton Rouge, LA 70803 USA ; [Wang, Dongxiao] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China
项目归属: 海洋地质
产权排名: 产权排序
资助者: Knowledge Innovation Program of the Chinese Academy of Sciences [SQ201201]; Basic Research Project of the State Oceanic Administration People's Republic of China; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA11030103]; National Special Project on Basic Research of Science and Technology [2008FY110100]; National Key Project for Basic Research of China [2013CB956102]; Xisha Station Construction for Marine Observation [KZCX2-YW-Y202]
摘要: Studies on modern sediment transport and deposition, especially studies analyzing settling particles collected with sediment traps, have rarely been carried out in the northern South China Sea. Using sediment trap time series data from Site XS1 (17 degrees 24.5'N, 110 degrees 55.0'E, water depth 1690 m) adjacent to the Xisha Trough, variations in sediment source through time have been reconstructed. These observations include total particle flux (TPF) and current data, grain size distributions, and clay mineral compositions obtained from two sediment traps deployed in 500 m and 1500 m water depth, respectively. Time series records at Site XS1 changed seasonally for both sampled layers. TPF in the lower layer (426 mg/m(2)/d) was several times that of the upper layer (113 mg/m2/d) and is affected by lateral transport. However, mean grain size (Mz) of the upper layer is greater that of the lower layer (29 vs10 mu m) due to contributions from biogenic materials. There are no clear seasonal changes in clay mineral assemblage in either the upper or lower layers. The annual percentages of four main clay minerals were 82-83% illite, 7-9% kaolinite, 6-8% chlorite and 1-3% smectite. Taiwan was the dominant sediment source (42-74%), while sediment contributions from the Red River and Annamite Chain account for 23-53% and 0-15%, respectively. Sediment supply from Taiwan could be explained by deep water current flow, while coastal currents may aid sediment transport from the Red River and small mountainous rivers of central Vietnam. (C) 2014 Elsevier Ltd. All rights reserved.
英文摘要: description.abstract
语种: 中文
原文出处: 查看原文
WOS记录号: WOS:000343853200013
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10597
Appears in Collections:中科院边缘海地质重点实验室_期刊论文

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Recommended Citation:
Liu, JG; Clift, PD; Yan, W; Chen, Z; Chen, H; Xiang, R; Wang, DX.Modern transport and deposition of settling particles in the northern South China Sea: Sediment trap evidence adjacent to Xisha Trough,DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,2014,93():145-155
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