分布在吉林省南部的下寒武统,为典型的地台沉积。由于地层发育、化石较丰富、露头良好及地理位置的重要,曾被认为解决我国南、北震旦系和寒武系对比和衔接的桥梁,是很关键的区域之一。一、研究历史概述区内寒武系下统研究程度较低。先后有长春地质学院、长春地质学院吉南区测大队、吉林省地质局区域地质调查大队及通化地质大队等单位工作过。其地层划分见表1。 Distributed in the Lower Cambrian in southern Jilin Province, typical platform deposition. Due to the stratigraphic development, abundant fossils, good outcrops and important geographical locations, it was considered as a bridge to bridge and contrast the Sinian and Cambrian systems in the south and north of China. It is one of the key areas. First, the history of the study Overview Cambrian under the district of the lower degree of research. There Changchun Geological College, Changchun Institute of Geological Engineering Geonan team, Jilin Geological Bureau of the regional geological survey unit and Tonghua Geological Brigade and other units worked. The strata are shown in Table 1.