伸展地区铲式正断层作用及其大地测量观测  

LISTRIC NORMAL FAULTING AND ITS GEODETIC SURVEYING IN THE EXTENSIONAL REGION

作　　者：桂焜长 

机构地区：[1]国家地震局第一地形变监测中心

出　　处：《地质论评》1993年第3期196-204,共9页Geological Review

基　　金：地震科学联合基金

摘　　要：铲式正断层作用是伸展构造区最主要的构造运动形式。本文根据铲式正断层作用的几何学、运动学特征,结合华北平原伸展区大地测量观测成果,探讨伸展区构造形变铲式正断层现今活动的地表形变效应及其动态特征。Listric normal faulting and its fault-bounded blocks are the most significantstructural movement pattern in the extensional tectonic region. It is of practicalsignificance to study and master the structural deformation features caused bylistric normal faulting in extensional regions by using regional geological struc-ture, geophysical data and geodetic surveying. Based on the geometric andkinematic behaviors of listric normal faulting, the surface effects of crustaldeformation and dynamic features due to recent movement caused by listricnormal faulting are studied in combination with the geodetic data from theextensional region of the North China Plain.

关 键 词：断层作用 大地测量 观测 伸展地区 

分 类 号：P542.3[天文地球—构造地质学]