LONGITUDINAL STREAM-PROFILES AS INDICATORS FOR GEOMETRIC SEGMENTATION OF THE LANGSHAN- HUANGBAISI FAULT ZONE, NORTHWEST BEIJING

作     者：Cheng Shao-ping, Yang Gui-zhi and Yang Zhe(Institute of Geology, State Seismological Bureau, Beijing 100029, China) 

出 版 物：《地震地质》 (Seismology and Geology)

年 卷 期：1991年第4期

页      面：300-305+299页

核心收录：

主　　题：Beijing Langshan-Huangbaisi fault zone Longitudinal stream-profile Geometric segmentatoin Gradient index 

摘      要：The Langshan-Huangbaisi fault zone in northwest Beijing is the southwestern part of the normal fault zone on the northern margin of the Yanqing basin, 35.5km long and NNE-NEE-trending in general, on which two major 130°- 140° bends separate it into three segments with different *** the Hack’s method, 71 longitudinal stream-profiles along the fault zone are analysed, shawing a well geomorphic response to the fault geometry. On these two major bends the gradient indices,K values, are relatively high. These three segments greatly differ in K *** stream-profiles are good tectonic-geomorphic indicators for geometric Segmentation of normal faults and will prqvide insight into segmented kinematics and paleoseismology.