隐伏隆起区内部预测煤田的技术方法研究  

Study of technical method on looking for coal field inside the concealed uplift area

作　　者：李刚[1,2] 张琳[1,2] 周永波[2] 付艳[2] 刘琼[2] 

机构地区：[1]中国地质大学(武汉),湖北武汉430074 [2]河南省航空物探遥感中心,河南郑州450000

出　　处：《中国矿业》2014年第9期70-75,共6页China Mining Magazine

摘　　要：针对隐伏隆起区内部即前人预测的无煤区进行隐伏煤田预测,国内开展相关的技术方法和找矿模型研究很少。在分析区域地质背景、综合研究的基础上,确定了隐伏隆起区内部找煤靶区的新思路,将重力低、磁力低地段作为寻找残留隐伏煤田的有利靶区,再采用高分辨率反射波地震,直接反映新生界厚度和煤层埋深,从而建立了隐伏隆起区内部的地球物理-地质找矿模型,经钻孔验证,效果良好,运用该模型对整个华北地台隐伏隆起区内部找煤具有直接重大的意义,因此,重力、磁力和地震是寻找隐伏隆起区内部煤田的有效方法组合。The study on the related techniques and prospecting model for the forcast of concealed coal field inside the concealed uplift area where it was believed to be no-coal area previously is rare in the country. Based on regional geological background and comprehensive study,new methods are developed. Low gravity and low magnetic areas are considered to be good target areas for resudual concealed coal field. Then high resolution reflected wave sesmie method is used to ascertain the thickness of Cenozoic rock strata and the depth of coal bed. Finally the geophysical-geological prospecting model is developed and the result is quite good according to the drilling verificaiton. This prospecting model is of great significance for looking for coal inside the concealed uplift area in the whole North China Platform. In conelusion, the combination of gravity,magnetic and sesmic exploraiton methods is an effective way to look for coal field inside the concealed uplift area.

关 键 词：隆起区内部 隐伏煤田 技术方法研究 

分 类 号：P612[天文地球—矿床学]