论文部分内容阅读
前言鄂尔多斯地台是一个比较完整而坚硬的地区。从力学角度来说,当一块受边侧作用的力后其内比较坚硬的部分是能储存巨大应力的。由此可知,当中国地壳受太平洋板块和印度板块挤压后,象鄂尔多斯这种地区其内是会积累很大应力的。但有史以来这里的地震却很弱。这究竟是什么原因呢?本文想从震源物理中的让位条件,垂直力与水平力叠加和防拐条件来讨论这个问题,并对鄂尔多斯块体周围地区地震较活动的原因进行了探讨。本文同时也讨论了把大地震模拟为一个裂缝的简单扩展的不充足性。
Preface Erdos platform is a more complete and hard area. From a mechanistic point of view, when a piece of the force acting on the side of the harder part of it is able to store tremendous stress. It can be seen from this that when the crust of China is squeezed by the Pacific plate and the Indian plate, great stresses will accumulate in such areas as Ordos. However, the earthquake here has been very weak. What is the reason for this? In this paper, we discuss the conjecture from the hypocenter in hypocenter physics, the superposition of vertical force and horizontal force and the anti-rotation condition, and discuss the reasons why earthquakes around Erdos block are more active. This article also discusses the inadequacies of simulating a large earthquake as a simple extension of a crack.