地质通报Issue(1)：155-170,16.
滇西北宾川地区主要活动断裂及其活动构造体系
The main active faults and the active tectonic system of Bin-chuan area, northwestern Yunnan
摘要
Abstract
In this paper, the research on the principal active fault in Binchuan area was conducted through satellite remote sensing in⁃terpretation and surface investigation, and then some new opinions concerning the active structural system of this area were put for⁃ward. The results achieved by the authors show that there are mainly NE-trending normal faults and strike-slip faults in this area, which constitute a typical transtension brush-structure and results in the geomorphical evolution of Binchuan area. The major faults of this active structural system are two splay fractures divided by the NS-trending Chenghai fault when the fault extended southward to Binchuan:the NS-trending Binchuan fault (F1) which has both normal and left-lateral strike-slip features, and the NE-trending Shangcang-Yupeng left-lateral strike-slip fault (F2). The formation and evolution of Binchuan′s active structural system was under the joint action of the regional EW-trending extension and the clockwise rotation of the micro-massifs, which reflected the NYRZ's left-lateral and pull-apart tectonic movement pattern in the context of the holistic clockwise rotation of the Tibetan Pla⁃teau. Meanwhile, the survey of the active structural system will contribute to understanding the future seismic risks in Binchuan area, and it is suggested to pay more attention to the risk of principal faults for strong earthquake.关键词
滇西北裂陷带/活动断裂/宾川帚状活动构造体系/构造地貌/地震Key words
Northwestern Yunnan Rift Zone (NYRZ)/active fault/Binchuan active brush-structure/structural landform/earth quake分类
天文与地球科学引用本文复制引用
罗睿洁,吴中海,黄小龙,黄小巾,周春景,田婷婷..滇西北宾川地区主要活动断裂及其活动构造体系[J].地质通报,2015,(1):155-170,16.基金项目
中国地质调查局项目（编号1212011120163、12120114002101）、中国地质科学院地质力学研究所基本科研业务费项目（编号DZLXJK201410）和国家自然科学基金项目 （）
