True Volumes of Slope Failure Estimated From a Quaternary Mass-Transport Deposit in the Northern South China Sea
Sun, Qiliang1,2,3; Alves, Tiago M.4; Lu, Xiangyang1,3; Chen, Chuanxu5; Xie, Xinong1,3; Sun, Qiliang(China Univ Geosci, Coll Marine Sci & Technol, Wuhan, Hubei, Peoples R China)
2018-03-28
发表期刊GEOPHYSICAL RESEARCH LETTERS
卷号45期号:6页码:2642-2651
产权排序第1完成单位 ; 第2完成单位 ; 第3完成单位 ; 第4完成单位 ; 第5完成单位
摘要Submarine slope failure can mobilize large amounts of seafloor sediment, as shown in varied offshore locations around the world. Submarine landslide volumes are usually estimated by mapping their tops and bases on seismic data. However, two essential components of the total volume of failed sediments are overlooked in most estimates: (a) the volume of subseismic turbidites generated during slope failure and (b) the volume of shear compaction occurring during the emplacement of failed sediment. In this study, the true volume of a large submarine landslide in the northern South China Sea is estimated using seismic, multibeam bathymetry and Ocean Drilling Program/Integrated Ocean Drilling Program well data. The submarine landslide was evacuated on the continental slope and deposited in an ocean basin connected to the slope through a narrow moat. This particular character of the sea floor provides an opportunity to estimate the amount of strata remobilized by slope instability. The imaged volume of the studied landslide is similar to 1035 +/- 64 km(3), similar to 406 +/- 28 km(3) on the slope and similar to 629 +/- 36 km(3) in the ocean basin. The volume of subseismic turbidites is similar to 86 km(3) (median value), and the volume of shear compaction is similar to 100 km(3), which are similar to 8.6% and similar to 9.7% of the landslide volume imaged on seismic data, respectively. This study highlights that the original volume of the failed sediments is significantly larger than that estimated using seismic and bathymetric data. Volume loss related to the generation of landslide-related turbidites and shear compaction must be considered when estimating the total volume of failed strata in the submarine realm.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1002/2017GL076484
URL查看原文
收录类别SCI
语种英语
关键词[WOS]PEARL RIVER MOUTH ; GULF-OF-MEXICO ; SUBMARINE LANDSLIDES ; CONTINENTAL-SLOPE ; SEISMIC STRATIGRAPHY ; DEBRIS AVALANCHE ; STOREGGA SLIDE ; MARGIN ; GIANT ; BASIN
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000430106000011
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.idsse.ac.cn/handle/183446/5933
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Sun, Qiliang; Sun, Qiliang(China Univ Geosci, Coll Marine Sci & Technol, Wuhan, Hubei, Peoples R China)
作者单位1.China Univ Geosci, Coll Marine Sci & Technol, Wuhan, Hubei, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao, Peoples R China
3.China Univ Geosci, Key Lab Tecton & Petr Resources, Minist Educ, Wuhan, Hubei, Peoples R China
4.Cardiff Univ, Sch Earth & Ocean Sci, Seism Lab 3D, Cardiff, S Glam, Wales
5.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Sanya, Peoples R China
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GB/T 7714
Sun, Qiliang,Alves, Tiago M.,Lu, Xiangyang,et al. True Volumes of Slope Failure Estimated From a Quaternary Mass-Transport Deposit in the Northern South China Sea[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(6):2642-2651.
APA Sun, Qiliang,Alves, Tiago M.,Lu, Xiangyang,Chen, Chuanxu,Xie, Xinong,&Sun, Qiliang.(2018).True Volumes of Slope Failure Estimated From a Quaternary Mass-Transport Deposit in the Northern South China Sea.GEOPHYSICAL RESEARCH LETTERS,45(6),2642-2651.
MLA Sun, Qiliang,et al."True Volumes of Slope Failure Estimated From a Quaternary Mass-Transport Deposit in the Northern South China Sea".GEOPHYSICAL RESEARCH LETTERS 45.6(2018):2642-2651.
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