Mesozoic subduction-accretion zone in northeastern South China Inferred from geophysical interpretations

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 中科院边缘海地质重点实验室

	Mesozoic subduction-accretion zone in northeastern South China Inferred from geophysical interpretations
	Di, Z ; Wang, WY ; Wang, JL ; Pang, X ; Cai, DS ; Sun, Z
刊名	SCIENCE IN CHINA SERIES D-EARTH SCIENCES
	2006
卷号	49 期号:5 页码:471-482
关键词	Mesozoic subduction zone SE Asia NE South China Sea geophysics
ISSN号	1006-9313
通讯作者	zhoudiscs@scsio.ac.cn
中文摘要	A segment of Mesozoic subduction-accretion zone was inferred across the northeastern South China Sea at approximately NE45 degrees orientation. Basic evidence includes the following: A belt of peek gross horizontal Bouguer gravity gradient (PGHGBA) is comparable in size and intensity to that of the Manila subduction-accretion zone. A belt of high positive magnetic anomalies appears to the north and sub-parallel to the PGHGBA, representing the volcanic arc associated to the subduction zone. The PGHGBA crosses obliquely both Cenozoic structures and present seafloor topography, indicating a pre-Cenozoic age. The segment is offset left-laterally by NW-running strike-slip faults, in concord with the Mesozoic stress field of South China. In addition, the existence of the subduction zone is supported by wide-angle seismic data obtained in different years by different institutions. At approximate localities, a north-dipping ramp of Moho surface is indicated by records of ocean-bottom seismometers, and a strong reflector about 8 km beneath the Moho reflector is indicated by both OBS and long-cable seismic records. The identification of a segment of Mesozoic subduction zone in NE South China Sea fills nicely the gap of the Great Late Mesozoic Circum SE Asia Subduction-acrretion Zone, which extended from Sumatra, Java, SE Kalimantan to N Palawan, and from Taiwan, Ryukyu to SW Japan.
学科主题	Geosciences, Multidisciplinary
收录类别	SCI
原文出处	SCIENCE CHINA PRESS
WOS记录号	WOS:000238585200003
公开日期	2011-07-03
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/4414]
专题	南海海洋研究所_中科院边缘海地质重点实验室
推荐引用方式 GB/T 7714	Di, Z,Wang, WY,Wang, JL,et al. Mesozoic subduction-accretion zone in northeastern South China Inferred from geophysical interpretations[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2006,49(5):471-482.
APA	Di, Z,Wang, WY,Wang, JL,Pang, X,Cai, DS,&Sun, Z.(2006).Mesozoic subduction-accretion zone in northeastern South China Inferred from geophysical interpretations.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,49(5),471-482.
MLA	Di, Z,et al."Mesozoic subduction-accretion zone in northeastern South China Inferred from geophysical interpretations".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 49.5(2006):471-482.