中国大陆板内地震发生的地质构造背景及构造类型的划分

本文首先着重讨论了中国大陆板内地震具有分带性和分区性的地质背景。在此基础上,考虑到板块边界运动的影响程度,提出中国板内地震的构造类型,可分为七种:(1)大陆板块碰撞影响型;(2)板块俯冲带牵动型;(3)板块边界走滑断层影响型;(4)断块区边界巨型断裂带型;(5)断块区内部的山脉和盆地交界型;(6)新生代地堑-裂谷型;(7)断块区内部岩石圈或地壳断裂型

GEOLOGICAL STRUCTURE SETTING OF THE GENERATION OF INTRAPLATE EARTHQUAKES IN CHINA CONTINENT AND THE STRUCTURAL CLASSIFICATION

This paper places the stress on the disscussion of the geological structure setting for regionalization and zonation of the continental intraplate seismicity in China.In consideration of boundary effects of the plate motion,seven types of seismic structures are presented here:Oassociated with colliding of the continental plates;2) responding to perturbation of the plates;3)associated with the strike-slip fault on the plate boundary;4) associated with large-scale fault zones between the boundaries of the fault blocks;5) associated with the boundaries between the ranges and the basins within the interior of the fault blocks;6)associated with the Genozoic graben-rift system;and 7) associated with the lithosphere and the crustal fractures