河南省华北型寒武纪-早奥陶世多重地层划分与对比

河南省华北型寒武纪—早奥陶世地层可分为７个组、２１个生物带、１０个阶。各组均为向北东、北西向的穿时体。向北东向穿时较高，反映向北东向的海侵较慢。自晚寒武世起，南西方向开始抬升，海水向北东方向运移。向北东方向抬升比北西方向慢，结束沉积晚。

MULTIPLE STRATIGRAPHICAL SUBDIVISION AND CORRELATION OF THE NORTH CHINA TYPE CAMBRIAN AND EARLY ORDOVICIAN OF HENAN

The North China type Cambrian and Early Ordovician strata can be subdivided into 7 Formations,21 biozones and 10 stages.The Formations are all the diachronous bodies both to the northeast and the northwest.The diachronous northeastwards was higher,reflecting the transgression to the northeast was slower.From the Late Cambrian the southwest place started to uplift,leading the marine water to move to the northeast.The uplift northeastwards was slower than northwestwards,and the sedimentation to the northeast ended later as well.