Mixed Carbonate-Siliciclastic Deposits in a Channel Complex in the Northern South China Sea

doi:10.1007/s12583-018-0830-4

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	Mixed Carbonate-Siliciclastic Deposits in a Channel Complex in the Northern South China Sea
	Wu, Shiguo(Chinese Acad Sci, Inst Deep Sea Sci & Engn, Key Lab Marine Georesources & Prospecting, Sanya 572000, Peoples R China); Gao, Wei 2,4; Gao, Jinwei6 ; Luedmann, Thomas 5; Mi, Lijun 3; Wu, Shiguo1,4,6 ; Ma, Benjun2,4,6
刊名	JOURNAL OF EARTH SCIENCE
	2018-06-01
卷号	29 期号:3 页码:707-720
关键词	Submarine Channels Mixed Carbonate-siliciclastic Deposits Allochthonous Carbonate Sediment Flux Sedimentology South China Sea
DOI	10.1007/s12583-018-0830-4
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 ; 第6完成单位
文献子类	Article
英文摘要	New high-resolution 3D seismic data image a submarine channel complex in the northern slope of the South China Sea. The channel complex stretches hundreds of kilometers across the slope and flows into the deepsea from the siliciclastic shelf margin, linking neritic environment to the pelagic plain. The evolution of the channel complex developed two sedimentary stages, stage I (19.1-18.5 Ma) and stage II (18.5-17.5 Ma), separated by erosional surfaces. In the first stage, the complex was filled with pure siliciclastic sediments, forming thick-massive sandstone intercalated by thin layers of mudstone. During the stage II, the channel complex was deposited five carbonate-siliciclastic cycles. The unexpected channel-fill carbonate deposits present allochthonous characteristics, suggesting the siliciclastic channel was surprisingly used to transport carbonate sediment from the adjacent neritic carbonate platform. By analyzing the periodical carbonate sedimentary process in the siliciclastic channel complex, we infer that it was related to the in situ carbonate production of the neritic carbonate platform and was most likely to be controlled by the relative sea-level changes. Unlike line-source carbonate slope aprons or small-sized carbonate channels, the large-sized siliciclastic channel complex links directly neritic carbonate platform to deepwater basin and can transport large volumes of neritic carbonates to the pelagic environment in a short period. The new findings help to estimate the contributions of neritic siliciclastic shelf and carbonate platform to deepwater slope more accurately. This study suggests that channel systems are more complex than expected and have significant implications on the conceptual models describing the deepwater sedimentary theory.
URL标识	查看原文
WOS关键词	RIVER-MOUTH BASIN ; DEEP-WATER CHANNELS ; TECTONIC EVOLUTION ; SUBMARINE CHANNEL ; SHELF-MARGIN ; CONTINENTAL-MARGIN ; SINUOUS CHANNELS ; INDIAN-OCEAN ; FAN-VALLEYS ; BAIYUN SAG
语种	英语
WOS记录号	WOS:000435629500021
内容类型	期刊论文
源URL	[http://ir.idsse.ac.cn/handle/183446/5972]
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	Wu, Shiguo(Chinese Acad Sci, Inst Deep Sea Sci & Engn, Key Lab Marine Georesources & Prospecting, Sanya 572000, Peoples R China); Wu, Shiguo
作者单位	1.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Marine Geol & Environm, Qingdao 266061, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 3.China Natl Offshore Oil Corp, Shenzhen Branch, Guangzhou 510420, Guangdong, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Univ Hamburg, Inst Geol, Ctr Earth Syst Res & Sustainabil, D-20146 Hamburg, Germany 6.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Key Lab Marine Georesources & Prospecting, Sanya 572000, Peoples R China
推荐引用方式 GB/T 7714	Wu, Shiguo,Gao, Wei,Gao, Jinwei,et al. Mixed Carbonate-Siliciclastic Deposits in a Channel Complex in the Northern South China Sea[J]. JOURNAL OF EARTH SCIENCE,2018,29(3):707-720.
APA	Wu, Shiguo.,Gao, Wei.,Gao, Jinwei.,Luedmann, Thomas.,Mi, Lijun.,...&Ma, Benjun.(2018).Mixed Carbonate-Siliciclastic Deposits in a Channel Complex in the Northern South China Sea.JOURNAL OF EARTH SCIENCE,29(3),707-720.
MLA	Wu, Shiguo,et al."Mixed Carbonate-Siliciclastic Deposits in a Channel Complex in the Northern South China Sea".JOURNAL OF EARTH SCIENCE 29.3(2018):707-720.