宜漂南部位于苏、浙、皖三省交界地区,现今的地貌为湖汶、张渚、戴埠等盆地,这些盆地的外缘由较老的泥盆系地层组成,盆地内部上二迭统龙潭组煤系广泛分布,是苏南主要煤产地之一(图1)。(一)岩性特征本区龙潭组煤系与下伏地层下二迭统孤峰组呈整合接触,与上覆上二迭统长兴组或大隆 The southern part of Yi-bleaching basin is located at the junction of the three provinces of Jiangsu, Zhejiang and Anhui. At present, the topography is the basin of Huwen, Zhangzhu and Daibu. The outer edge of these basins consists of the older Devonian strata. On the upper part of the basin, Coal is widely distributed, is one of the main coal producing areas in southern Jiangsu (Figure 1). (I) Lithological Features The coal-bearing system of the Longtan Formation in this area is in integrated contact with the Goofeng Formation of the Permian under the strata, and overlaps with the Changxing Formation or the Dalong Formation