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在地质历史上,侏罗纪地层应被赋予特殊地位,因为正是在最初对侏罗系的研究中, 才产生了现代地层学与地史学,威廉.史密斯提出了地层学的最基本的原理——层序律。而地层的分带和建阶原则,也是地层学的先驱奥倍尔与阿尔比内在研究侏罗系时确立的。关于对侏罗系的研究,在我国亦有特别的意义。翁文灏(1926,1929)提出的燕山运动对我国东部地质有重要意义。但由于燕山地区侏罗、白垩系是陆相沉积,分期极为困难,对我
In the geological history, the Jurassic strata should be given a special status, because it was exactly in the original study of Jurassic that modern stratology and geo-history came into being. William Smith proposed the most basic principle of stratigraphy - Sequence Law. Stratigraphic zoning and building principles, but also the pioneers of stratigraphy Obeier and Albineau in the study of Jurassic established. On the Jurassic research in our country also has special significance. The Yanshan movement proposed by Wen Wenghao (1926, 1929) is of great significance to the geology in the east of China. However, due to the Jurassic and Cretaceous sediments in the Yanshan area,