论文部分内容阅读
一、绪言 岩石圈板块或外壳的理论已成功地解释同板块边界相伴的构造现象。然而,某些地震和地壳变形,却发生于板块内部,与板块的边界并无明显关系。从地球重力势的谐函数能很近似地计算地幔对流所引起的壳下应力。作者(1977)利用地球势能场的卫星探测和重力测量,证明板块内的构造是由地幔对流产生的。地幔对流所产生的壳下压性和
INTRODUCTION The theory of lithospheric plates or shells has successfully explained the tectonic phenomena that accompany the plate boundaries. However, some earthquakes and crustal deformations occur within the plate and have no obvious relationship with the plate boundaries. From the earth’s gravitational potential harmonic function can be very close to calculate the mantle convection caused by the shell stress. The authors (1977) used satellite sounding and gravimetric measurements of the Earth’s potential field to show that the tectonics within the plate were created by convective mantle convection. Mantle convection produced by the shell under pressure and