论依—舒地堑伸展构造的深部机制

MECHANISM OF YI-SHU GRABEN IN THE DEPTH OF THE EARTH

1. 南京大学,南京210008;2. 大庆石油管理局,大庆163712

1. Earth Science Department of Nanjing University, Nanjing 210008;2. Daqing Petroleum Administration, Daqiug 163712

本文根据磁异常、重力异常和天然地震P_n波走时统计所反映的上地幔波速各向异性特征,运用伸展构造的理论,从深部构造的角度,探讨了依—舒地堑的成因问题。

This paper studies the genesis of the Yi-shu graben structure in line with the mechanism of structures in the depth of the earth as well as the extension theory of structures,in which the data of magnetic/gravity anomalies and the statistics of the natural seismic wave P_n's travel times in response to the anisotropic features in the upper mantle are exploited.