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辽东半岛南部发育于太古宙基底与青白口系盖层邻接部位的大型韧性剪切带与盖层内顺层固态流变形成的构造群体,是印支造山旋回开始时,在主要来自太平洋方面的构造力驱动下,以盖层与基底的不整合面为主滑脱面发生自东向西近水平多层系顺层剪切滑脱的产物, 称顺层滑脱构造。大范围的顺层滑脱未引起大规模的褶皱—逆冲推覆;同时,主滑脱面也不同于伸展拆离断层。顺层滑脱构造形成后先后被南北向(T3 —J1) 和东西向(J2 —J3) 等褶皱断裂系叠加改造;基底在晚白垩世的断块运动中大幅度抬升。顺层滑脱构造应该是长期沉降的沉积盆地在进入造山旋回时( 主褶皱前) 可能出现的构造型式。
Large ductile shear zones developed in the adjacent parts of the Archean basement and Qingbaikou system in the southern part of Liaodong Peninsula and tectonic groups formed by bedding-layer solid-state fluid rheology in the southern part of the Liaodong Peninsula are the main tectonic groups derived from the Pacific Ocean Under the tectonic force, the unconsolidated surface of the caprock and the basement is the product of the shear slip of the near-horizontal multi-layer system from east to west, which is called as the slipstream structure. A large range of bedding slip does not cause large-scale fold-thrust nappe; at the same time, the main slip surface is also different from the extension and detachment faults. The formation of bedding slippage has been superimposed and remolded by fold-fault systems such as north-south direction (T3-J1) and east-west direction (J2-J3) after its formation. The basement was greatly uplifted in the fault block movement of Late Cretaceous. Stratified detachment should be the type of structure that may have occurred in the long-term sedimentary basin upon entering the orogenic cycle (before the main folds).