试论郯-庐“Y”型三叉裂谷

本文根据卫星重力资料和地面重力资料,研究了地幔对流产生的应力场,并结合地质、地球物理资料的综合分析,对郯—庐裂谷带的具体位置、形成机理及其演化规律都作了探讨。在此基础上提出了郯—庐“Y”型三叉裂谷的看法。

A TENTATlVE DISCUSSION ON TANCHENG-LUJIANGY-SHAPED TRIPURCATE RIFT

Based on satellite gravity data and ground gravity data, the present paperdeals with the stress field caused by mantle convection and, in combinationwith an integrated analysis of geologic and geophysical data, makes an inves-tigation into the location, formation mechanism and evolutionary regularity ofthe Tancheng-Lijiang rift belt. On such a basis, the view of Tancheng-Lujiang Y-shaped trifurcate rift is presented.