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Mass transport deposits and processes in the north slope of the Xisha Trough, northern South China Sea

文献类型:期刊论文

作者Qin Zhiliang2; Mi Lijun4; Spence, George3; Gong Shaojun5; Li Wei1; Wang Dawei1; Wu Shiguo1
刊名ACTA OCEANOLOGICA SINICA
出版日期2015-09-01
卷号34期号:9页码:117-125
关键词South China Sea Mass Transport Deposits Submarine Slides Gravity Flow Deepwater Channel System
DOI10.1007/s13131-015-0608-9
文献子类Article
英文摘要Triple mass-transport deposits (MTDs) with areas of 625, 494 and 902 km2, respectively, have been identified on the north slope of the Xisha Trough, northern South China Sea margin. Based on high-resolution seismic reflection data and multi-beam bathymetric data, the Quaternary MTDs are characterized by typical geometric shapes and internal structures. Results of slope analysis showed that they are developed in a steep slope ranging from 5A degrees to 35A degrees. The head wall scarps of the MTDs arrived to 50 km in length (from headwall to termination). Their inner structures include well developed basal shear surface, growth faults, stepping lateral scarps, erosion grooves, and frontal thrust deformation. From seismic images, the central deepwater channel system of the Xisha Trough has been filled by interbedded channel-levee deposits and thick MTDs. Therefore, we inferred that the MTDs in the deepwater channel system could be dominated by far-travelled slope failure deposits even though there are local collapses of the trough walls. And then, we drew the two-dimensional process model and threedimensional structure model diagram of the MTDs. Combined with the regional geological setting and previous studies, we discussed the trigger mechanisms of the triple MTDs.
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WOS关键词3D SEISMIC DATA ; SUBMARINE LANDSLIDES ; TURBIDITY CURRENTS ; QIONGDONGNAN BASIN ; CONTINENTAL-SLOPE ; MARGIN ; COMPLEXES ; EVOLUTION ; EXAMPLES ; SYSTEM
语种英语
WOS记录号WOS:000360819600014
版本出版稿
源URL[http://ir.idsse.ac.cn/handle/183446/1205]  
专题深海科学研究部_深海地球物理与资源研究室
作者单位1.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Lab Marine Geophys & Deep Sea Georesource, Sanya 572000, Peoples R China
2.Minist Transport, Tianjin Res Inst Water Transport Engn, Tianjin 300456, Peoples R China
3.Univ Victoria, Sch Earth & Ocean Sci, Victoria, BC V8P 5C2, Canada
4.China Natl Offshore Oil Corp, Dept Explorat, Beijing 100010, Peoples R China
5.Tianjin Explorat Ctr Marine Geol, Tianjin 300170, Peoples R China
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Qin Zhiliang,Mi Lijun,Spence, George,et al. Mass transport deposits and processes in the north slope of the Xisha Trough, northern South China Sea[J]. ACTA OCEANOLOGICA SINICA,2015,34(9):117-125.
APA Qin Zhiliang.,Mi Lijun.,Spence, George.,Gong Shaojun.,Li Wei.,...&Wu Shiguo.(2015).Mass transport deposits and processes in the north slope of the Xisha Trough, northern South China Sea.ACTA OCEANOLOGICA SINICA,34(9),117-125.
MLA Qin Zhiliang,et al."Mass transport deposits and processes in the north slope of the Xisha Trough, northern South China Sea".ACTA OCEANOLOGICA SINICA 34.9(2015):117-125.

入库方式: OAI收割

来源:深海科学与工程研究所

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