%0 Journal Article
%T Interpretation of 3D seismic renection data in the Chinese Continental Scientific Drilling site<br>中国大陆科学钻探孔区三维地震资料的初步解释
%A YANG WenCai
%A YANG WuYang
%A CHEN ZhenYan Continental Dynamics Laboratory
%A <br>杨文采
%A 杨午阳
%A 程振炎
%J 岩石学报
%D 2004
%I 
%X Seismic reflection investigations have been carried out for the Chinese Continental Scientific Drilling Project (CCSDP) , showing that many reflectors occurred in the upper crust of the drilling area. Calibration of the reflectors by using cores, well-logging and VSP data can significantly enhance reliability of their interpretation. In the CCSD site, thickness of the ultrahigh-pressure (UHP) rock-slice is usually less than 10 km, beneath the UHP slice velocities of the middle and lower crust are normal among usual extensional areas. Ached the seismic reflectors in the 3D seismic main line are caused by the high-velocity eclogite bodies plus low-velocity fractures; strong dipping reflectors are caused the ductile shear rock-suites that consist of . mylonite and interbed of thin eclogites and gneiss. The 3D survey provides 3D reflection wave-field that can be shown by time-slice sets. . Time slices above 450ms are intensively correlated with surface geology and magnetic anomalies, whilst slices of 1000 - 1200ms correlate with the gravity anomalies, indicating buried eclogite bodies. Based on the interpretation a structural section across the CCSD main hole is presented.
%K Chinese continental drilling
%K Seismic reflection
%K Calibration of reflectors
%K Geological/structural interpretation<br>大陆科学钻探孔区
%K 反射地震
%K 标定反射体
%K 地质构造解释
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=621CF755B1A341E5&jid=2013B5467E3054B1614CEC199353FCED&aid=2A6F90FCFA21E084&yid=D0E58B75BFD8E51C&vid=A04140E723CB732E&iid=CA4FD0336C81A37A&sid=B344543C2864D684&eid=09E495F616948E78&journal_id=1000-0569&journal_name=岩石学报&referenced_num=25&reference_num=38