Geometry, internal architecture, and evolution of buried volcanic mounds in; the northern South China Sea
Ma, Benjun1,2; Wu, Shiguo2,3; Betzler, Christian4,5; Qin, Zhiliang1; Mi, Lijun6; Gao, Wei4,7; Bai, Huaqing5; Wu, Feng8; Dong, Dongdong7
2018-11-01
发表期刊MARINE AND PETROLEUM GEOLOGY
ISSN0264-8172
卷号97页码:540-555
摘要High-resolution seismic and borehole data were used to characterize a volcanic mound in the northern South China Sea, including its internal architecture, lithological characteristics and evolutionary history. On seismic profiles, the mound shows a convex geometry similar to an isolated carbonate buildup. It was therefore previously seen as a carbonate buildup and a significant hydrocarbon target until an industrial well BY7-1 proved its volcanic nature. Ten seismic facies are identified to analyze the internal architecture of the mound under the constraint of borehole data. Petrologic analysis based on cuttings and thin sections reveals that the mound is composed of volcanic tuffs, siliciclastics, carbonates, and basalt layers. Depositions and architecture of the mound are interpreted as a result of an interplay between tephra accumulation during volcanic eruptions, wave induced re-deposition of volcaniclastics when the volcanic mound emerged above sea level, and subsequent siliciclastic/carbonate deposition when the volcanic mound was flooded during the phases of volcanic quiescence. Furthermore, the correlation of seismic and well data allows us to reconstruct the entire evolutionary history of the mound from its formation to its demise and final burial. This work presents a detailed description of the mound architecture and its genesis, and thus provides an analogue for detailed interpretations of similar structures encountered during petroleum explorations in the South China Sea or elsewhere.
关键词Volcanic mounds Carbonate mound Seismic stratigraphy Pearl River Mouth Basin South China Sea
DOI10.1016/j.marpetgeo.2018.07.029
资助者China Postdoctoral Science Foundation ; National Basic Research Program of China ; Key Project of Natural Science Foundation of China Foundation
语种英语
资助项目China Postdoctoral Science Foundation[2018M631564] ; National Basic Research Program of China[2015CB251201] ; National Basic Research Program of China[2017ZX05026-006] ; Key Project of Natural Science Foundation of China Foundation[91228208] ; Key Project of Natural Science Foundation of China Foundation[41506055]
关键词[WOS]RIVER-MOUTH BASIN ; GREAT BAHAMA BANK ; BAIYUN SAG ; MORPHOLOGICAL EVOLUTION ; CONTINENTAL-MARGIN ; INDIAN-OCEAN ; LEVEL CHANGE ; NEW-ZEALAND ; COMPLEX ; ISLAND
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000449128000036
出版者ELSEVIER SCI LTD
引用统计
文献类型期刊论文
条目标识符http://ir.idsse.ac.cn/handle/183446/6303
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Ma, Benjun; Gao, Wei
作者单位1.Harbin Engn Univ, Coll Underwater Acoust Engn, Harbin 150001, Heilongjiang, Peoples R China
2.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Lab Marine Geophys & Georesource, Sanya 572000, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Marine Geol & Environm, Qingdao 266061, Peoples R China
4.UCAS, Beijing 100049, Peoples R China
5.Univ Hamburg, Inst Geol, D-20146 Hamburg, Germany
6.China Natl Offshore Oil Corp, Shenzhen Branch, Guangzhou 510420, Guangdong, Peoples R China
7.Chinese Acad Sci, Key Lab Marine Geol & Environm, Inst Oceanol, Qingdao 266071, Peoples R China
8.China Univ Geosci, Wuhan 430074, Hubei, Peoples R China
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GB/T 7714
Ma, Benjun,Wu, Shiguo,Betzler, Christian,et al. Geometry, internal architecture, and evolution of buried volcanic mounds in; the northern South China Sea[J]. MARINE AND PETROLEUM GEOLOGY,2018,97:540-555.
APA Ma, Benjun.,Wu, Shiguo.,Betzler, Christian.,Qin, Zhiliang.,Mi, Lijun.,...&Dong, Dongdong.(2018).Geometry, internal architecture, and evolution of buried volcanic mounds in; the northern South China Sea.MARINE AND PETROLEUM GEOLOGY,97,540-555.
MLA Ma, Benjun,et al."Geometry, internal architecture, and evolution of buried volcanic mounds in; the northern South China Sea".MARINE AND PETROLEUM GEOLOGY 97(2018):540-555.
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