Architecture and evolution of deep-water cyclic deposits in the Qiongdongnan Basin, South China Sea: Relationship with the Pleistocene climate events
Wang, Dawei1; Wu, Shiguo1; Yao, Genshun2; Wang, Weiwei3; Wang, Dawei(Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China)
2015-12-01
发表期刊MARINE GEOLOGY
卷号370期号:10页码:43-54
产权排序第1完成单位 ; 第2完成单位 ; 第3完成单位
摘要Cyclic deposit systems, which exhibit mass-transport deposits at the base and channel-levee deposits toward the top, are identified in Pleistocene sequences of the deep-water Qiongdongnan Basin at depths between 1000 and 1500 m. Based on 3D seismic data, seismic amplitude, coherence, time thickness, waveform classification, and stratal slices, we show the vertical evolution of the cyclic deposit system. Channel-levee deposits display the sequence from the erosional channel systems to the leveed channel systems. Erosional channel systems have a stronger ability to incise the slope and contain erosional channels, un-developed levees, smooth lateral margins, crevasse splays, and slides. Leveed channel systems, which are less deeply incised than erosional channel systems, contain leveed channels, developed levees and overbank deposits. Kinematic indicators suggest that cyclic deposit systems are sourced from shelf edge/upper slope systems in central Vietnam, where mountainous rivers deliver high amounts of terrigenous clastics. The proper order of the cyclic deposit system, pollen cycles from Site 1144, and the maximum delta C-13 values (delta(13)Cmax) at 1.6, 1.0 and 0.5 Ma from Site 1143 suggest a new model for the systematic deep-water sequences that may be related to the different stages of Pleistocene relative sea-level changes on the long eccentricity cycle time-scale. The start time point of three cyclic deposit systems is inferred respectively corresponding to three climate events at 1.6, 0.9 and 0.4 Ma during the Pleistocene. (C) 2015 Elsevier B.V. All rights reserved,
文章类型Article
关键词Cyclic Deposit Systems Long Eccentricity Cycle Seismic Attribute Climate Events
学科领域海洋地质学
WOS标题词Science & Technology ; Physical Sciences
DOI10.1016/j.margeo.2015.10.002
URL查看原文 ; 查看原文
收录类别SCI
语种英语
关键词[WOS]MASS-TRANSPORT COMPLEXES ; SEQUENCE STRATIGRAPHY ; CHANNEL ; SYSTEM ; SLOPE ; CLASSIFICATION ; INDICATORS ; TRINIDAD ; ELEMENTS ; VIETNAM
WOS类目Geosciences, Multidisciplinary ; Oceanography
WOS记录号WOS:000366233500004
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.idsse.ac.cn/handle/183446/1468
专题深海科学研究部_深海地球物理与资源研究室
通讯作者Wang, Dawei; Wang, Dawei(Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China)
作者单位1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
2.PetroChina Hangzhou Inst Geol, Hangzhou 310023, Zhejiang, Peoples R China
3.China Univ Petr, Qingdao 266580, Peoples R China
第一作者单位中国科学院深海科学与工程研究所
通讯作者单位中国科学院深海科学与工程研究所
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Wang, Dawei,Wu, Shiguo,Yao, Genshun,et al. Architecture and evolution of deep-water cyclic deposits in the Qiongdongnan Basin, South China Sea: Relationship with the Pleistocene climate events[J]. MARINE GEOLOGY,2015,370(10):43-54.
APA Wang, Dawei,Wu, Shiguo,Yao, Genshun,Wang, Weiwei,&Wang, Dawei.(2015).Architecture and evolution of deep-water cyclic deposits in the Qiongdongnan Basin, South China Sea: Relationship with the Pleistocene climate events.MARINE GEOLOGY,370(10),43-54.
MLA Wang, Dawei,et al."Architecture and evolution of deep-water cyclic deposits in the Qiongdongnan Basin, South China Sea: Relationship with the Pleistocene climate events".MARINE GEOLOGY 370.10(2015):43-54.
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