延庆怀来地区高分辨率浅地震反射剖面

地震地质 ›› 1999, Vol. 21 ›› Issue (4): 425-430.

延庆怀来地区高分辨率浅地震反射剖面

刘保金, 孙振国, 赵成斌, 顾梦林, 李长法, 冷欣荣, 李德庆

中国地震局地球物理勘探中心郑州 450003

收稿日期:1998-10-31 修回日期:1999-03-31 出版日期:1999-12-08 发布日期:2009-11-25
基金资助:
中国地震局"九五"重点项目(9504080201);中国地震局地球物理勘探中心论著RCEG99004.

SHALLOW SEISMIC REFLECTION PROFILING WITH HIGH RESOLUTION IN YANQING HUAILAI REGION

Liu Baojin, Sun Zhenguo, Zhao Chengbin, Gu Menglin, Li Changfa, Leng Xinrong, Li Deqing

Research Centre of Exploration Geophysics, China Seismological Bureau, Zhengzhou 450003

Received:1998-10-31 Revised:1999-03-31 Online:1999-12-08 Published:2009-11-25

摘要/Abstract

摘要： 在延庆怀来地区穿过深断裂位置开展的浅地震反射测量获得了高分辨率的地壳浅部结构图像。结果表明,研究区内浅层断裂发育,覆盖层分层清晰,具有良好的反射性质。基底为前震旦纪地层,埋深500 ～1000m 不等,由一系列无规律的弱反射构成。狼山断裂是延矾盆地北缘的控制性断裂,在剖面上呈铲形,反映了年轻发育阶段的伸展构造特征。

关键词: 地震波反射法, 延庆怀来盆地, CDP叠加剖面

Abstract: High resolution shallow seismic reflection measurements were carried out crossing deep faults which were revealed by deep seismic reflection profiles in Yanqing-Huailai region, and high-resolution images of shallow crust were obtained in this region. The results indicate that the sedimentary layer is characterized by good reflectivity and there are well developing shallow fault structures in this region. The basement of the basin consists of pre Sinian layers. It is characterized by irregular weak reflectivity and its depth is about 500～1000m. The Langshan fault is a listric fault on profile and is a controlling fault at the northern edge of Yanqing-Fanshan basin. It indicates stretching structure of a young developing basin.

Key words: Seismic wave reflection method, Yanqing-Huailai basin, CDP stack profile

刘保金, 孙振国, 赵成斌, 顾梦林, 李长法, 冷欣荣, 李德庆. 延庆怀来地区高分辨率浅地震反射剖面[J]. 地震地质, 1999, 21(4): 425-430.

Liu Baojin, Sun Zhenguo, Zhao Chengbin, Gu Menglin, Li Changfa, Leng Xinrong, Li Deqing. SHALLOW SEISMIC REFLECTION PROFILING WITH HIGH RESOLUTION IN YANQING HUAILAI REGION[J]. SEISMOLOGY AND GEOLOGY, 1999, 21(4): 425-430.