西藏崩错地区新生代构造特征研究  

RESEARCH OF CENOZOIC STRUCTURE CHARACTERISTICS IN BENGCUO AREA OF XIZANG

作　　者：宁树正[1] 

机构地区：[1]中国煤炭地质总局,北京100039

出　　处：《高原地震》2006年第4期24-31,共8页Plateau Earthquake Research

摘　　要：西藏崩错地区是青藏高原构造复杂而典型的地区,崩错断层带及其附近近南北向断层带近于垂直,地震资料和GPS资料都反映出本地区有较强烈的构造活动性。通过对地貌特征和构造活动性综合分析,得出崩错断层带形成晚于谷露断层带,进而对整个青藏高原地区的近东西向构造与近南北向构造关系做了初步探讨。Bengcuo area in Xizang is the complex and typical area of structure in Qinghai - Xizang Plateau, Bengcuo fault zone is approximately perpendicular to nearly south- north structures on vicinity of Bengcuo fault zone,the earthquake data and GPS data approve that this area has more intense structure activity. Based on comprehensive analysis to relief characteristics and structure activity, we consider that Bengcuo fault zone should form in later age than the Gulu fault zone does, then have made the preliminary discussion to the structure relation of the nearly east - west structure and the nearly south - north structure in the entire Qinghai - Xizang area.

关 键 词：走滑断层 地堑 剪切构造 拉张构造 

分 类 号：P54[天文地球—构造地质学]