岩浆岩侵入区赋煤规律与找煤方法

COAL EXIENCE LAW AND FINDING COAL METHOD IN MAGMATIC INTRUSION AREA

为了在岩浆岩侵入区开展正常煤炭生产活动,依据岩浆岩侵入特征及侵入区煤层赋存规律,研究了岩浆岩厚度变化及其侵入的方向性对煤层赋存的控制作用,岩床边缘向内凹进的港湾状区域,煤层厚度急剧增大,是煤田地质勘探和矿区找煤的重要靶区,岩浆岩与煤层位置关系的分带性特征可以用来指导矿井地质工作。利用该方法在研究区获得新增储量约620万t,并为生产采掘揭露和钻孔勘探所证实。

For the normal coal production in magmatic intrusion area, according to the coal exitence law and the magmatic intrusion characteriics, the menipulative function to coal exitence was udied by means of the variation and the intrusive directions of magmatic rock, the coal thickness dramatically added in the concave area near the bedrock edge, where is a important target area for the prospecting of coalfield geology and finding coal in the diggings, the feature of zone reparability for the space ralation between magmatic rock and coal seam can be utilizad to direct the mine geology work. 6200000 ton coal is discovered by this method, and it is approved by exploration and production.