南海及邻域现代构造应力场与近代地壳运动及地壳稳定性研究  

STUDY ON RECENT TECTONIC STRESS FIELD, RECENT CRUSTAL MOVEMENT AND CRUSTAL STABILITY IN SOUTH CHINA SEA AND ITS ADJUCENT AREA

作　　者：刘以宣[1] 詹文欢[1] 丘学林[1] 钟建强[1] 陆成斌[1] 邓传民 

机构地区：[1]中国科学院南海海洋研究所,广州510300

出　　处：《华南地震》1993年第1期11-21,共11页South China Journal of Seismology

摘　　要：本文根据有限元法反演了南海及邻域现代构造应力场的基本特征,着重讨论了应力场与地震活动、火山活动、活动断裂和地壳升降运动等的相关性,并根据最大剪应力的数值将本区划分为极不稳定区(≥1.8×10~7Pa)、不稳定区(1.2×10~7Pa-1.8×10~7Pa)、次稳定区(6×10~6Pa-1.2×10~7Pa)和稳定区(<6×10~6Pa)等4个大区域的地壳稳定性分区。According to the characteristics of recent tectonic stress field in South China Sea and its adjacent area inverted by finite element method, this paper mainly discusses the interrelation between stress field,seismic activity, Volcanic activity,active faults,and crustal uplift and subsidence movem-rnt. on the basis of magnitude of maximum shearing stress, the studied regiion is divided into 4 areas : highly unstable area (≥1. 8×107Pa), unstable area 1. 2×107 -1. 8×107Pa) sub-stable area (6×106-1. 2×107Pa) and stable ares ( <6×106Pa).

关 键 词：构造应力场 地壳运动 稳定性 南海 

分 类 号：P554[天文地球—构造地质学]