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通过对张强凹陷及邻区露头构造形迹和岩心裂缝测量的应力分析,把该地区的地质历史划分出自太古代以来的8个构造期,确定了各期构造应力场状态及构造组合形式,认为晚侏罗世及白垩纪古构造应力场是断陷盆地形成、发展的主要应力场,晚侏罗世为近东西向拉张的构造应力状态;阜新组沉积期末至泉头组沉积前,由东西向拉张转为近东西向挤压,导致断陷阶段结束和上侏罗统变形;白垩纪为东西向挤压,早期区域整体沉降,晚期大面积隆升遭受剥蚀。早第三纪期为北西-南东向挤压,晚第三纪以来北东东-南西西向挤压。新生代的两期应力场仅使一些断裂继续活动,变形强度小于前两期。
Based on the stress analysis of outcrop structure and core fracture measurement in Zhangqiang Sag and its adjacent area, the geological history of the area is divided into 8 tectonic periods since the Archean age, and the tectonic stress field states and tectonic assemblages of each stage are determined. The Jurassic and Cretaceous tectonic stress fields are the main stress field for the formation and development of fault basins. Late Jurassic is the tectonic stress state stretching nearly east-west. Before the deposition of Fuxin Formation to the Quantou Formation, To pull to near east-west extrusion, resulting in the end of fault depression and the deformation of the Upper Jurassic. The Cretaceous is squeezed east-west, the whole area is subsided in the early stage, and the late large-scale uplifting is eroded. The Early Tertiary period is northwest-south eastward squeezing, and since the late Tertiary the north east-southwest-west squeezing. The Cenozoic stress field of the two periods only made some faults continue to move, and the deformation intensity was less than the first two periods.