【摘要】 该文对比分析了库车坳陷与塔西南坳陷的受力环境、变形层、形变区、滑脱层系,认为两者在构造变形方面存在明显差异。库车坳陷的应力特征以压性为主,横向上形变特征差异较小,纵向上由北向南变形强度逐渐减弱;塔西南坳陷的应力特征,在不同的边界条件下,表现为很强的扭动特征,构造变形在平面上变化较大,不同区块主形变期及形变特点差异明显,造成深坳陷及麦盖提斜坡带构造类圈闭不发育、断裂垂向输导作用较差。更多还原

【Abstract】 Based on a correlation of dynamic background, deformed sequences, decollement structures between the Kuqa depression and the southwestern Tarim depression, there is obvious difference in the two areas in terms of their structural deformation. The compressional stress is dominated in the Kuqa area with little change of deformation characteristics in whole area but a decreasing vertical deformation from north to south. The southwestern Tarim depression is showed strong wrench deformation with different intensity in different parts. As a result, structural traps are poorly developed in the deep part and Maigaiti slope, and faults can not be acted as a vertical passway of hydrocarbon migration.更多还原