Calibration of seismic reflectors in Chinese Continental Drilling area

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	Calibration of seismic reflectors in Chinese Continental Drilling area
	Yang, WC 3; Zhang, CH ; Zhu, GM
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2002
卷号	45 期号:3 页码:370-384
关键词	deep seismic reflection metamorphic terrane Continental Drilling origin of reflectors calibration of reflectors
ISSN号	0001-5733
英文摘要	Geophysical investigations have been carried out in the Chinese Continental Scientific Drilling (CCSD) site, including 2D seismic reflection, MT, gravity and-magnetic surveys. Seismic surveys show that many reflectors, such as dipping reflectors and arch reflectors, occur in the upper crust of the drilling area. This paper shows the seismic results and interpretation of the seismic reflectors. Based on cores and well-logging data from an CCSD pre-pilot hole, VSP data and synthetic computations, we demonstrate that dipping reflectors can be caused by high-velocity eclogite bodies, fractures and ductile shear zones. However, arch reflectors are resulted from steep eclogites plus low-velocity fractures. As upper crust usually contains metamorphic rocks, the interpretation should be useful for calibration of deep reflection signals.
学科主题	地球物理勘探
WOS研究方向	Geochemistry & Geophysics
语种	中文
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000175848600009
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/37524]
专题	中国地质调查局
作者单位	1.CAGS, Inst Geol, Beijing 100037, Peoples R China. 2.Chang An Univ, Inst Appl Geophys, Xian 710054, Peoples R China. 3.中国地质科学院地质研究所
推荐引用方式 GB/T 7714	Yang, WC,Zhang, CH,Zhu, GM. Calibration of seismic reflectors in Chinese Continental Drilling area[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2002,45(3):370-384.
APA	Yang, WC,Zhang, CH,&Zhu, GM.(2002).Calibration of seismic reflectors in Chinese Continental Drilling area.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,45(3),370-384.
MLA	Yang, WC,et al."Calibration of seismic reflectors in Chinese Continental Drilling area".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 45.3(2002):370-384.