论文部分内容阅读
地球总的形状近似于一个旋转椭球体,其扁率为1/298.25,这与地球长期处于旋转状态有关.地球在漫长的发展过程中,经受了多次构造运动和各种地质作用,呈现了今天地壳中的复杂构造形态.引起地壳构造运动的动力来源肯定是一个复杂问题,已有几种观点来解释地壳运动的起源,例如:地慢对流说、重力均衡说、日月引潮力说、地球自转角速度变化说等.本文认为,引起构造运动的力源是多种因素共同作用的结果.可以肯定,地球自转角速度变化是引起构造运动的力源之一.因此,分析地球自转角速度变化引起的构造应力是有意义的.关于由地球自转角速度变化引起的构造应力,以前通行的看法认为有两个力:一个为惯性力的纬向增量(即纬向惯性力),另一个
The total shape of the Earth approximates a spheroid with a flattening of 1 / 298.25, which is related to long-term rotation of the Earth. The earth has undergone many tectonic movements and various geological processes over a long period of development, Today’s complex tectonic patterns in the crust The source of motivation for the tectonic movement in the crust must have been a complex issue. There have been several views to explain the origin of crustal motions, such as slow convection, gravitational equilibrium, Earth rotation angular velocity change, etc. This paper argues that the source of tectonic movement caused by many factors is the result of action.It can be affirmed that the Earth’s rotation angular velocity changes is one of the sources of tectonic movement.Therefore, analysis of the Earth’s rotation angular velocity caused by changes Of the tectonic stress is significant.For the tectonic stress caused by the angular velocity change of the Earth’s rotation, the conventional wisdom holds that there are two forces: one is the zonal increment of inertial force (ie, the latitudinal inertial force), and the other