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博乐盆地具有较好的含油气远景,但地质研究程度较低,需要对其形成的构造应力场进行分析。选取构造条件复杂的博乐隆起为主要研究区,采用古构造分析方法进行构造应力场解析。通过统计分析节理、断层发育特征,确定了博乐隆起主要发育三组断裂、四期节理。利用共轭X剪节理求取最大主应力方位,结合区域构造演化认识,确定博乐盆地石炭纪以来主要经历了早二叠世NNW-SSE向挤压构造应力场、早二叠世末-中二叠世NWW-SEE向挤压构造应力场、晚二叠世末-三叠世NEE-SWW向挤压构造应力场和晚侏罗世至白垩世NNE-SSW向挤压构造应力场。
Bole basin has a good hydrocarbon-oil prospect, but its degree of geological research is relatively low, so it is necessary to analyze the tectonic stress field formed by it. The Bole Uplift with complex tectonic conditions is selected as the main study area, and the palaeo-tectonic analysis method is used to analyze the tectonic stress field. Through the statistical analysis of the joints and the features of fault development, the three major groups of faults and the four joints of the Bole uplift were determined. Using the conjugate X-cut joint to determine the orientation of the maximum principal stress and combining with the regional tectonic evolution understanding, the Carboniferous of Bole basin has been subjected to the NNW-SSE tectonic stress field of Early Permian, the end of Early Permian Permian NWW-SEE compressional tectonic stress field, Late Permian-Triassic NEE-SWW crustal tectonic stress field and Late Jurassic to Cretaceous NNE-SSW crustal tectonic stress field.