CSAMT法在福建大田东西坑找煤的应用效果

The Application Effect of CSAMT Method in Looking for Coal Mine at Datian Dongxikeng in Fujian

福建大田东西坑矿区,出露地层为侏罗系上统长林组凝灰质砂砾岩、砂岩、粉砂岩,并有较大范围花岗斑岩分布。为了确定下部是否存在隐伏的煤系地层,指导布置钻孔,在矿区内布置了电剖面,采用CSAMT方法进行野外测量,通过资料的收集处理,圈出较理想的含煤区,并经施工钻孔验证,效果显著。

The exposure strata of the mining area in Datian Dongxikeng, Fujian are tuffaceous sandy conglomerate, sandstone and siltstone of the upper Jurassic Changlin formation, with widely distributed granite porphyry. In order to ensure whether there is buried coal series strata underground, and to determine the borehole location, the induced polarization section survey was laid with CSAMT method in the mining area. Through the data acquisition and processing, the ideal coal bearing area was located, and the effect was verified obviously well by following drilling-bore.