Neogene igneous intrusions in the northern South China Sea: Evidence from high-resolution three dimensional seismic data

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	Neogene igneous intrusions in the northern South China Sea: Evidence from high-resolution three dimensional seismic data
	Sun, Qiliang 1; Wu, Shiguo 1; Cartwright, Joe 2; Wang, Shenghao 3; Lu, Yintao4 ; Chen, Duanxin 1; Dong, Dongdong 1
刊名	MARINE AND PETROLEUM GEOLOGY
	2014-06-01
卷号	54 页码:83-95
关键词	Igneous intrusion Petroleum system Magmatic activity Basin evolution Pearl River Mouth Basin South China Sea
通讯作者	Sun, QL (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China.
英文摘要	Igneous intrusions emplaced within the prospective intervals of sedimentary basins can exert a significant impact on petroleum systems and hence are of considerable interest particularly when risking exploration plays. A number of discordant high amplitude seismic anomalies (DSAs) with a range of geometries are documented in high resolution 3D seismic data in the northern South China Sea. Their distribution and seismic characteristics are analysed and compared with similar seismic anomalies documented within sedimentary basins in the Atlantic margins and other locations. The DSAs occur mainly within Early Miocene strata and are interpreted as igneous intrusions that were emplaced close to the palaeo-seabed and are dated as early Middle Miocene using seismic-stratigraphic methods. A number of vents are also identified above the intrusions within early Middle Miocene strata. Several geometrical forms are observed, referred to here as saucer-shaped, lensoid-shaped, stacked and composite intrusions. The seismic expression of these is increasing complex towards the palaeo-seabed, with a tendency for the saucer-shaped sills to be the deepest intrusive forms. The igneous intrusions observed in this study only could be identified using 3D seismic data and they are important for the future evaluations of petroleum systems, basin evolution and tectonic analysis in the Pearl River Mouth Basin. (C) 2014 Elsevier Ltd. All rights reserved.
学科主题	Geology
收录类别	SCI
语种	英语
WOS记录号	WOS:000336712000006
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/23830]
专题	海洋研究所_海洋地质与环境重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Univ Oxford, Dept Earth Sci, Oxford OX1 3AN, England 3.Shenzhen Branch CNOOC Ltd, Guangzhou, Guangdong, Peoples R China 4.PetroChina Hangzhou Inst Geol, Hangzhou 310023, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Sun, Qiliang,Wu, Shiguo,Cartwright, Joe,et al. Neogene igneous intrusions in the northern South China Sea: Evidence from high-resolution three dimensional seismic data[J]. MARINE AND PETROLEUM GEOLOGY,2014,54:83-95.
APA	Sun, Qiliang.,Wu, Shiguo.,Cartwright, Joe.,Wang, Shenghao.,Lu, Yintao.,...&Dong, Dongdong.(2014).Neogene igneous intrusions in the northern South China Sea: Evidence from high-resolution three dimensional seismic data.MARINE AND PETROLEUM GEOLOGY,54,83-95.
MLA	Sun, Qiliang,et al."Neogene igneous intrusions in the northern South China Sea: Evidence from high-resolution three dimensional seismic data".MARINE AND PETROLEUM GEOLOGY 54(2014):83-95.