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笔者在苏南煤田从事矿井地质工作时,遇到几个问题:1.同一矿区的两个相邻的井田,相当的煤层编号却不同,可采煤层是否相当也不清楚。如镇江矿区的东风、小力山井田主采煤层编号为一、二层,而相邻的伏牛山井田主采煤层编号却为Ⅲ、Ⅴ层。实际上,一、二层分别相当于Ⅲ、Ⅴ层。2.同是晚二迭世龙潭组的主采煤层,不同地方层位不一定相当,但在一些地质文献中把苏南各地晚二迭世主采煤层当作相当层位进行对比。如南京地区龙潭组主采煤层层位要比镇江地区高些。南京地区采的是龙潭组上部的煤层,含煤1～5层,可采1～2层。以生物灰岩为顶板;鲕状(有时无鲕状结构)粘土岩为底板的一层煤比较特征,容易辨认。而镇江地区主采煤层却靠下,虽然也含煤1～5层,可采1～2
When I was engaged in mine geological work in the southern Jiangsu coalfield, I encountered several problems: 1. Two adjacent minefields in the same mining area have quite different coal seam numbers, and whether or not the coal seam can be taken is quite unclear. For example, in Dongfeng and Zhenjiang of Zhenjiang, the main coal seam of Xiaoli Mountain Mine is numbered 1 and 2, while the adjacent coal seam numbers of Funiu Mountain are No. Ⅲ and Ⅴ. In fact, the first and second floors correspond to the third and fifth floors, respectively. 2. It is also the main seam of the Late Second Late Longtan Formation, and the strata in different places are not necessarily the same. However, in some geological documents, the coal seam of the Late Permian coal seam in different parts of southern Jiangsu is regarded as a comparative layer. For example, the main coal seam of Longtan Formation in Nanjing area is higher than that of Zhenjiang area. Mining in Nanjing area is the upper part of Longtan coal seam, containing 1 to 5 layers of coal and 1 to 2 layers of coal. With bio-limestone as the roof; oolitic (sometimes no oolitic structure) clay rock as the floor of a layer of coal more features, easy to identify. The main coal seams in Zhenjiang area are by the next, although it also contains 1 to 5 layers of coal, recoverable 1-2