论文部分内容阅读
吉林省位于中朝准地台的东北缘和天山——兴安地槽褶皱区的东南缘,横跨性质迥然不同的两个一级大地构造单元。以赤峰——开原——和龙近东西向深大断裂为界,其南为中朝准地台的胶辽台隆;其北为天山——兴安地槽褶皱区华力西晚期褶皱系。从早元古代到晚古生代末,南、北两区岩浆活动、构造变动以及地质发展史等方面有明显的差别。华力西晚期(早二迭世末)北区大面积区域性隆起运动之后,结束了地槽的历史,经过晚二迭世——早三迭世过渡阶段,到晚三迭世南、北两区便形成一个整体,并沦为
Jilin Province is located on the northeast margin of the Sino-North Korean platform and the southeastern margin of the Tianshan-Xing’an Trough fold zone, spanning two first-grade geotectonic units of widely differing nature. The Chifeng - Kaoyuan - Helong nearly east - west deep fault is bounded by the south of the Sino - Korean quasi - platform of the Liaodai Silicone; north of the Tianshan - Xing’an trough fold Wahliac late fold series . From Early Proterozoic to late Late Paleozoic, there are obvious differences in the magmatic activities, tectonic movements and geological development history in the south and north regions. After the large uplift movement in the northern part of the Great Variscan (Early Early Permian), the history of the earth trough ended. After the late Permian-Early Triassic transitional phase, to the late Triassic South and North The two districts will form a whole and will be reduced to