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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
Source PublicationMARINE GEOLOGY
Volume370Issue:10Pages:43-54
Contribution Rank第1完成单位 ; 第2完成单位 ; 第3完成单位
AbstractCyclic 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,
SubtypeArticle
KeywordCyclic Deposit Systems Long Eccentricity Cycle Seismic Attribute Climate Events
Subject Area海洋地质学
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.margeo.2015.10.002
URL查看原文 ; 查看原文
Indexed BySCI
Language英语
WOS KeywordMASS-TRANSPORT COMPLEXES ; SEQUENCE STRATIGRAPHY ; CHANNEL ; SYSTEM ; SLOPE ; CLASSIFICATION ; INDICATORS ; TRINIDAD ; ELEMENTS ; VIETNAM
WOS SubjectGeosciences, Multidisciplinary ; Oceanography
WOS IDWOS:000366233500004
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.idsse.ac.cn/handle/183446/1468
Collection深海科学研究部_深海地球物理与资源研究室
Corresponding AuthorWang, Dawei; Wang, Dawei(Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China)
Affiliation1.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
First Author AffilicationInstitute of Deep-sea Science and Engineering,CAS
Corresponding Author AffilicationInstitute of Deep-sea Science and Engineering,CAS
Recommended Citation
GB/T 7714
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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