山东胶北隆起区荆山群

一、胶北隆起区变质地层划分沿革胶北隆起区前寒武纪变质地层广泛发育,很多地质工作者,曾在这里进行过研究工作。1958—1962年长春地质学院师生在该区进行一比二十万区域地质调查,首次将该区变质地层命名为“胶东群”,并自下而上划分为化山、旌旗山两个组,积累了大量的地质资料,从而为该区地质普查工作奠定了基础。 1968年,省局八○五队通过对该区一比二十万区调的修测,将该区(桃村断裂以西,沂沭断裂以东)胶东群自下而上划分为蓬夼、民山、富阳三个岩组,并将招平断裂以东,

THE JINGSHAN GROUP IN THE JIAOBEI UPLIFT, SHANDONG

The Jingshan Group is a newly defined metamorphic sequence between the Fenzishan Group and the Jiaodong Group. and consists mainly of terrigenous clastic and carbonate sediments. On the basis of the rock association the Jingshan Group can be classified into three formations: the Lugezhuang formation, the Yetou formation and the Douya fomation each of which can also be subclassified into two members.These three formations represent three clear sedimentar cycles which began with the deposition of coarse clast...