论文部分内容阅读
华北地台东部,燕山期、喜山期构造变动强烈。三叠系遭受了严重的剥蚀,残留面积狭小而零星,尤其在太行山北段、燕山、辽、鲁等地所存无几。因而造成了一种错觉,以为地台东部是印支期古隆起。三叠系很不发育,只是在个别地点散布着一些局限性的沉积。然而这个问题事关华北地台地质历史之真貌,且与油、气资源评价、煤种预测密切相关。因此,有研究之必要。
The eastern part of North China Platform, Yanshanian period, strong changes in the Himalayan period. Triassic suffered serious erosion, the residual area is small and sporadic, especially in the northern section of the Taihang Mountains, Yanshan, Liao, Lu and other places deposited. Thus resulting in an illusion that the Indo-Chinese paleo-uplift was formed in the eastern part of the platform. The Triassic is poorly developed, with some localized sediments scattered at individual sites. However, this issue is related to the true geological history of the platform in North China and is closely related to oil and gas resource assessment and coal prediction. Therefore, there is a need for research.