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淮北地区寒武系与新元古界的界线 ,长期以来存在争议 ,主要有 5种划分意见 :猴家山组 /沟后组 ,沟后组 /金山寨组 ,沟后组上段 /沟后组下段 ,金山寨组 /望山组及猴家山组 /金山寨组之间。通过近年来的实地考察和室内研究 ,从叠层石、宏体碳质压膜化石及小壳动物化石组合综合考虑 ,认为该区新元古界最上面的岩组应是沟后组 ,而超覆于区内新元古界不同层位上的长期被描述为猴家山组“豹斑状”灰岩、白云岩 ,实为昌平组 ,属下寒武统
The boundary between the Cambrian and the Neoproterozoic in Huaibei area has long been controversial. There are mainly five kinds of divided opinions: the Houjiashan Formation / Gouhou Formation, the Gouhou Formation / Jinshanzhai Formation, the upper part of the Gouhou Formation / the lower part of the Gouhou Formation , Jinshanzhai / Wangshan and Houjianshan / Jinshanzhai. Based on the field investigation and indoor research in recent years, considering the combination of stratigraphic rocks, macroscopically carbonated fossils and small shell animal fossils, it is considered that the uppermost Neoproterozoic rock group should be the ditch group, Overlying the different Neoproterozoic strata in the area has long been described as the “Leopard-like” limestone and dolomite of the Houjiashan Formation, which is actually the Changping Formation and belongs to the Lower Cambrian