First Documentation of Large Submarine Sinkholes on the Ganquan Carbonate Platform in the Xisha Islands, South China Sea

doi:10.3390/jmse11112171

CORC > 深海科学与工程研究所 > 中国科学院深海科学与工程研究所 > 深海科学研究部 > 深海地球物理与资源研究室

	First Documentation of Large Submarine Sinkholes on the Ganquan Carbonate Platform in the Xisha Islands, South China Sea
	Du, Wenbo 1,2; Yang, Chupeng 1,2; Zhang, Huodai 1,2; Gao, Jinwei 3; Wen, Mingming 1,2; Hu, Xiaosan 1,2; Xu, Ziying 1,2; Nie, Xin 1,2; Zhu, Rongwei 1,2
刊名	JOURNAL OF MARINE SCIENCE AND ENGINEERING
	2023-11-01
卷号	11 期号:11 页码:15
关键词	submarine sinkhole geomorphology acidic hydrothermal dissolution Ganquan carbonate platform South China Sea
DOI	10.3390/jmse11112171
通讯作者	Yang, Chupeng(gmgs_yang@foxmail.com) ; Zhang, Huodai(z183514387@126.com)
英文摘要	Submarine sinkholes are unique and important geomorphological features with a typical cavity structure that are of great scientific value. Submarine sinkholes were discovered for the first time in the isolated Ganquan carbonate platform on the Xisha Islands, the northwestern South China Sea. Based on high-resolution multibeam bathymetric data and seismic profile data, we identified 37 submarine sinkholes at water depths ranging from 550 to 1267 m. They are subcircular to circular negative-relief features, and most of them are V- or compound V-shaped in the cross-section. Their average diameters range from 57 to 667 m, and the depth of the depression ranges from 2.5 to 241 m. By comparing submarine sinkholes in the Ganquan platform with those in other carbonate platforms worldwide, we can infer that the Ganquan platform submarine sinkholes are the largest sinkholes developed on an isolated carbonate platform. Remotely operated vehicle (ROV) "Haima 2" images revealed that the inner walls of submarine sinkholes are characterized by stalactite-like structures, possible dikes, flow marks, and corroded holes, which are typical karstic landscape features. The temperature within submarine sinkholes is 2 degrees C higher than that of the open ocean at the same water depth. Based on the results of the shallow formation profile and multichannel seismic profiles, we propose that the submarine sinkholes in the Ganquan platform probably formed via the dissolution of the carbonate platform via acidic hydrothermal fluids that originated from magmatic activity and migrated along faults.
资助项目	China Geological Survey Project
WOS关键词	DISSOLUTION ; MAGMATISM ; ARCHIPELAGO ; EVOLUTION ; OFFSHORE ; BURACAS ; STRAITS ; MARGIN ; REEFS
WOS研究方向	Engineering ; Oceanography
语种	英语
出版者	MDPI
WOS记录号	WOS:001113374400001
资助机构	China Geological Survey Project
内容类型	期刊论文
源URL	[http://ir.idsse.ac.cn/handle/183446/10691]
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	Yang, Chupeng; Zhang, Huodai
作者单位	1.China Geol Survey, Minist Nat Resources, Key Lab Marine Mineral Resources, Guangzhou Marine Geol Survey, Guangzhou 511458, Peoples R China 2.Natl Engn Res Ctr Gas Hydrate Explorat & Dev, Guangzhou 511458, Peoples R China 3.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
推荐引用方式 GB/T 7714	Du, Wenbo,Yang, Chupeng,Zhang, Huodai,et al. First Documentation of Large Submarine Sinkholes on the Ganquan Carbonate Platform in the Xisha Islands, South China Sea[J]. JOURNAL OF MARINE SCIENCE AND ENGINEERING,2023,11(11):15.
APA	Du, Wenbo.,Yang, Chupeng.,Zhang, Huodai.,Gao, Jinwei.,Wen, Mingming.,...&Zhu, Rongwei.(2023).First Documentation of Large Submarine Sinkholes on the Ganquan Carbonate Platform in the Xisha Islands, South China Sea.JOURNAL OF MARINE SCIENCE AND ENGINEERING,11(11),15.
MLA	Du, Wenbo,et al."First Documentation of Large Submarine Sinkholes on the Ganquan Carbonate Platform in the Xisha Islands, South China Sea".JOURNAL OF MARINE SCIENCE AND ENGINEERING 11.11(2023):15.