南秦岭房县拉分盆地的构造发育特征  

TECTONIC DEVELOPMENT FEATURES OF FANGXIAN PULL-APART BASIN OF SOUTH QINLING

作　　者：甘家思[1] 刘锁旺[1] 李愿军[2] 

机构地区：[1]中国地震局地震研究所,武汉430071 [2]武汉大学土木建筑工程学院,武汉430072

出　　处：《大地测量与地球动力学》2003年第4期87-91,共5页Journal of Geodesy and Geodynamics

基　　金：地震科学联合基金 ( 880 15 )<南秦岭造山带走滑断裂;拉分盆地与地震活动研究>课题资助

摘　　要：南秦岭新生代房县盆地是北西向安康 竹山 房县左旋走滑断裂构造带东南端拉分盆地。论述了该盆地边界断裂、盆地结构和 3期盆地发育演化特征。估算盆地的最大扩张量为 2 .73km ,主控边界断裂的走滑位错量为3.5 7km ,并分析了盆地主要储能结构与地震的关系。The Fangxian basin of Cenozoic Era of South Qinling is a pull-apart basin at the southeastern end of the Ankang-Zhushan-Fangxian NW-trending left-lateral strike-slip fault zone.The boundary faults,basin structure and development and evolution features in three periods of this basin are described.The maximum expansion of this basin is estimated as 2.73 km,the strike-sliping dislocation of its principal boundary fault is 3.57 km and the relation of main energy-reserving structure of the basin with the earthquakes is analyzed as well.

关 键 词：构造形变 地震 南秦岭 房县拉分盆地 盆地扩张量 

分 类 号：P315.2[天文地球—地震学]