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湖平面变化分析是国内外地球科学研究的前沿之一,湖平面升降变化控制着层序地层界面的形成和不同类型沉积体的分布,对于沉积矿产资源的分布具有重要的意义。本文研究以辽中凹陷为研究区,东营组为主要研究层段,利用滨岸上超点方法反演东营期古湖平面升降历史。为陆相湖盆湖平面变化研究提供崭新的研究方法和思路;同时,由于本研究区为富油坳陷区,精确计算的湖平面变化史为隐蔽油气藏勘探提供分析依据。
The analysis of the change of lake level is one of the frontiers of geoscience research at home and abroad. The change of lake level controls the formation of sequence stratigraphic interface and the distribution of different types of sediments, which is of great significance for the distribution of sedimentary mineral resources. In this paper, we take Liaozhong depression as the research area and Dongying formation as the main research interval, and use the super-point method on the shore to retrieve the history of the plane lift of the ancient lake in Dongying. It provides a new research method and idea for the study of plane change of terrestrial lacustrine lake. At the same time, because the study area is an oil-rich depression, the exact history of lake level changes provides the basis for subtle reservoir exploration.