论文部分内容阅读
北黄海位于辽东半岛,山东半岛与朝鲜之间,海域及周围地区广泛发育了北东东向和北北西向断裂,据物探资料,它们控制了中、新生代盆地的成生与发展。我们通过部分同方向断裂的岩组学研究,将岩组动力学分析的观点引进岩组图的解释,获得了几点新认识: (1)显微统计测量得到的信息与宏观构造分析有机地结合起来,是对一个地区进行变形史分析的有效研究方法。 (2)以石英在变形过程中仅能以菱面或锥面为主要滑动面为基础,分析北黄海围域断裂的岩组图形,得出了与宏观一致的结论。 (3)北黄海及周围地区的北东东向和北北西向断裂,在第三纪末改变了一次动力学性质,是起因于太平洋板块运动方向的变更。
The North Yellow Sea is located between the Liaodong Peninsula, Shandong Peninsula and North Korea. The NE and NE northwestern faults are extensively developed in and around the sea. According to the geophysical data, they controlled the growth and development of the Mesozoic and Cenozoic basins. We have made some new understandings by introducing some of the petromontological studies in the same direction with fault fractures and introducing the viewpoint of rock group dynamics analysis into interpretation of rock group diagrams: (1) Microscopic statistical information and macrostructure analysis Organically Together, this is an effective method of studying the history of deformation in a region. (2) Based on the fact that the quartz can only be based on the rhombic or conical surface as the main sliding surface in the deformation process, the lithofacies pattern of the north Huanghai fault is analyzed, and the conclusion is consistent with the macroscopic. (3) NNE and NW-NW faults in the northern Yellow Sea and surrounding areas changed a dynamic characteristic at the end of the third century, which was caused by the change of the direction of the movement of the Pacific plate.