【摘要】 <正> 塔里木盆地蕴藏着丰富的油气资源,加深对该盆地构造特征及其发展演化的认识,具有重大的理论和实践意义.一、区域地质背景(一)位置塔里木盆地位于北纬36°05′～42°10′、东经75°00′～91°30′之间,地处新疆维吾尔自治区南部,面积约56万平方公里.(二)构造格架从地球动力学背景来分析,塔里木盆地属于压扭性盆地.其北南两侧分别为天山和昆仑山海西褶皱山系所限.在天山山前,发育了一系列与褶皱山系平行的近东西向展布的褶更多还原

【Abstract】 Tarim Basin is a transpressional basin in accordance with geodynamic setting. The fault system has three kinds of strike of NW-NWW, NE-NEE and EW.The stractural styles that can be recognized in the basin: the struact-ural styles related to compression, which include the asymmetic folds from tight to open and the drag folds accompanied by thrust faulting; the struc-tural styles concerned with strike-slip faulting, characterized by development of echelon folds; the struactural styles related to the movement of basement, including growth anticlines, differential compaction folds and fault blocks of basement, etc. ; the structural styles related to the activities of plastic strata, characterized by salt-diapir. In addition, there are also large nappe (or detachment) structures, etc.The origin and development of Tarim Basin are chiefly controlled by the regional stress field, pre-existed structural features and mantle updoming. Along with the upthrusting of the inherited faults, the block of basement can be shortened by 7.5-29.2%.Tarim Basin has broad prospects for oil/gas. Tabei uplift, Bachu uplift, Minfeng-Ruoqiang uplift, Maigaiti slope and Southwest sag are favourable zo-nes of oil/gas accumalation.更多还原