西准噶尔额敏东巴尔雷克断裂带特征及演化  

The Tectonics and Evolution of the Baerleike Fault in East Side of Emin County,Western Junggar

作　　者：沈锐[1] 李永军[1] 孙勇[1] 王军年[2] 

机构地区：[1]长安大学地球科学与资源学院,陕西西安710054 [2]新疆地质矿产勘查开发局第七地质大队,新疆乌苏833000

出　　处：《西北地质》2015年第3期234-240,共7页Northwestern Geology

基　　金：中国地质调查局地质矿产调查评价专项(基[2011]02-02-18);国家自然科学基金(41273033)

摘　　要：通过1:5万区域地质调查,确认西准噶尔额敏东吾尔喀什尔一带的NE—SW断裂带,是著名的巴尔雷克蛇绿构造混杂带的东北延伸段,由多条近平行的铲式逆冲推覆断裂组成,呈复式叠瓦扇状构造。断裂带规模大、活动时间长、期次多,显著控制了区内的构造单元和沉积盆地边界,以及岩浆作用和构造变形样式。巴尔雷克断裂带也是额敏前陆盆地系统的主要构造组成。该成果为全面认识巴尔雷克断裂带性质、演化提供了重要信息,为区域"盆"-"山"构造格局及发展、演化提供了新认识。Based on the 1 ： 50000 regional geological survey, the NE-SW direction fault of the Wuerkasguer in West Junngga is made up structure of double imbricate fan. This fact of much subparallel with shovle-shaped and is the is confirmed that it is northestern stretch of basalts from the Barleik ophiolitic melange in West Junggar. Its characteriesare the large scale, long-time activities and multiphase rupture so that this fracture zone control tectonic unit, the edge of sedimentary basins, magmatism and tectonic deformation, he Barleik fault is also the important part of the Emin foreland basin system. The results provides important information for us comprehensive understanding to characteristics and evolution about Barleik fault, and new perspective for structural framework of basin-mountain, and its development and evolution this area.

关 键 词：巴尔雷克断裂带 逆冲推覆断裂 “盆”-“山”耦合 前陆盆地 西准噶尔 

分 类 号：P542[天文地球—构造地质学]