安徽淮南地区新元古代九里桥组主要由砂质、泥质灰岩,叠层石灰岩和白云质灰岩组成。
The Neoproterozoic Jiuliqiao Formation in Huainan region consists of sandy and silty limestone, stromatolite limestone and dolomitic limestone.
赋存稳定,结构简单,煤种为FM、JM,煤层顶板为石灰岩、粉砂岩,底板为泥质粉砂岩、砂质泥岩;
The occurrence is steady and the structure is simple with FM, JM types of coal, whose roof is limestone and siltstone and bottom is muddy siltstone and sandy mudstone;
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