地质科学2012，Vol.47Issue(3)：629-639,11.
塔里木盆地库车坳陷中部构造变形样式及分布特征
The character of deformation style and its distribution law in the middle Part of Kuqa depression,northern margin of Tarim Basin,NW China
摘要
Abstract
Kuqa depression is a secondary tectonic unit of Tarim Basin, which formed typical compressive thrust structures under the action of the intra-continent orogeny in late Cenozoic. It also developed complex salt tectonic because of the evaporite rocks in Paleogene and Neogene and the strike-slip structures in the transfer zone of thrust belt. Based on the new 2D/3D seismic and well data,the research on the deformation style and distribution law in the middle part of Kuqa depression was finished. The result shows that. 1) Based on the deformation genetic mechanism, the deformation styles can be divided into three types. They are compression structure, salt structure and strike-slip structure. 2) Compression structure mainly performed as thrust and fold,which can be divided into fault-related fold and fold-related fault in overburden of salt layer and imbricate thrust structure, wedge-shape structure and detachment thrust structure in subsalt layer. The fault of overburden of salt layer mainly detachment in salt layer. The salt structure can be divided into salt-sheet, salt-wall, salt-wedge, salt-diapir and salt-arch structure. Strike-slip structure can be found as flower structure and uncoordinated deformation in vertical and en echelon folds, horsetail fault and dolphin structure in the plane. 3 ) Compression structure and salt structure mainly distributed in Kelasu belt and Qiulitage belt. The imbricate thrust structure, wedge-shape structure and detachment thrust structure distributed in subsalt layer from South Tianshan Mountain to the basin. The strike-slip structure can be found in Awate-Quele belt and Kela 3-Dongqiu 8 belt.关键词
库车坳陷/变形样式/收缩构造/盐构造/走滑构造Key words
Kuqa depression/ Deformation style/ Compression structure/ Salt structure/ Strike-slip structure分类
天文与地球科学引用本文复制引用
能源,谢会文,李勇,雷刚林,杨宪彰..塔里木盆地库车坳陷中部构造变形样式及分布特征[J].地质科学,2012,47(3):629-639,11.基金项目
国家科技重大专项(编号:2011ZX05003-004),中国石油大学教育基金会"王涛英才奖学金"和塔里木油田博士后科研项目资助. （编号:2011ZX05003-004）
