【摘要】 将塔里木盆地西南坳陷构造类型分为2大类7亚类：①基底卷入型分为基底逆冲、扭动、逆冲与扭动叠加等3亚类；②盖层滑脱型分为滑脱背科、断弯背斜、披覆与滑脱挤压背斜、叠瓦式逆冲构造等4亚类。基底卷入构造多数发生于海西期；喜山期强烈活动，盖层滑脱构造多数发生于喜山期。构造多期活动，形成部分叠加构造。目前在滑脱背斜上部找到了油田，推测各种滑脱构造、扭动构造中所伴生的褶皱－断裂系统和基底挠折、基底卷入背斜是油气勘探中的远景区。更多还原

【Abstract】 Structural type of the southwest depression in Tarim basin may be divided into two major types, seven subtypes. (1) basement-involved structures are divided into three types: basemnt-involved thrust structure,wrench structure, supeopsed thrust and wrench structures. (2 ) detached structures are divided into four types: detached anticline, fault-bend anticline, supeopsed drape anticline and detached anticline, imbricated thrust structure. Most of basement-involved structures were developpd during Hercynian cycle and deformed strongly during Himalayan cycle. Most of detached structures were developed during Hirnalayan cycle. There were multi-stapes of tectonics in the area, so some structures are superposed. An oil reservoir has recently been discovered in detached anticline. Therefore, it is estimated that various detachment structures, folded fault systems naiated with torsion structure, basement fiexure structure and basement-involved anticline are prospective area for oil and gas exploration in Tarim basin.更多还原