摘要
应用多种地球物理方法研究结果 ,经过综合对比分析 ,编制了中朝地台东北缘及其邻区岩石层厚度图 ,探讨了软流圈顶部埋深分布特征的大地构造意义及地球动力学特征。指出软流圈顶部埋深与中新生代以来构造活动和现代断裂活动及地震活动具有较为密切的关系。海拉尔盆地、渤海湾 -下辽河盆地、松辽盆地等是上地幔软流圈普遍上隆地带 ,也是现今地震活动和地表下沉地区 ,认为它们与上地幔软流圈上隆具有明显的联系。
Based on the results of multiple geophysical research methods, the lithospheric thickness distribution map of the northeastern margin of Sino\|Korean platform and its neighbouring area has been compiled and the geotectonic meaning and the geodynamic characteristics of depth dstribution of top asthenosphere has been also discussed. The authors suggest that the closer relations exist between the depth of top asthenosthere and the tectonic activities from middle Cenozonic Era till now, as well as the modern faulting and seismic activities. The upper mantle asthenosphere are mostly uplift in Hailaer Basin, Bohai Gulf\|Xialiaohe Basin and Songliao Basin. Meanwhile, there exist modern seismic activities and ground subsidence in this area. It is resulted from the uplift of upper mantle asthenosphere
出处
《中国地震》
CSCD
北大核心
2000年第1期14-21,共8页
Earthquake Research in China
基金
国家自然科学基金!(496 742 2 0 )
地震联合基金!(95 15 2 )
关键词
上地幔软流圈
岩石层
构造运动
地震活动
地台
Upper mantle asthenosphere\ Lithosphere\ Gradient Zone\ Dynamical factor
