宁镇地区龙潭组煤厚度变化原因及找煤预测

On the Thickness Variation of Longtan Coal Bed and Coal Prospecting in Southen Jiangsu

宁镇地区龙潭组煤厚度变化原因及找煤预测傅雪海，夏钦林，程善国江苏省煤田地质勘探研究所，徐州，２２１００６关键词：煤矿，煤层厚度，预测，江苏宁镇地区。ＯｎｔｈｅＴｈｉｃｋｎｅｓｓＶａｒｉａｔｉｏｎｏｆＬｏｎｇｔａｎＣｏａｌＢｅｄａｎｄＣｏａｌＰｒｏｓｐ...

There are three coal-bearing beds in the Longtan coal-bearing series.The minable coal thickness varies between 0 and 6.8 m.The stability is very bad.The major factor affecting the variation of coal thickness is sedimentary formation,mainly characterized by the wave synsedimentary base,unample sediments supply,short stable coal-forming age,coal bed splitting and thin out as well as the syn-and post-sedimentary wash.Another important factor is post-tectonic and magmatic activities,such as compression by overthrust movement which makes the coal bed deformed into various shapes.