首批煤炭国家规划矿区煤中镓的成矿前景  

Study of Ore-forming Potential of Gallium in Coal for the First Group of State Programmed Mining Districts

作　　者：秦勇[1] 王文峰[1] 程爱国[2] 刘新花[1] 赵建岭[1] 

机构地区：[1]中国矿业大学,江苏徐州221116 [2]中国煤炭地质总局,北京100073

出　　处：《中国煤炭地质》2009年第1期17-21,26,共6页Coal Geology of China

基　　金：国土资源部矿产资源补偿费矿产勘查项目(国土资源部国土资发(2005)249号)

摘　　要：基于煤炭资源勘探中获得的5079件煤样实测数据,对全国首批煤炭国家规划矿区煤中Ga进行了资源调查,建立了煤中Ga成矿前景评价方法,圈定了煤中Ga的地球化学异常,预测了煤中Ga的资源状况及其分布规律,初步讨论了煤中Ga"矿床"的规模和成矿前景。结果显示,评价区煤中Ga尽管总体上没有达到边界工业品位,但某些勘查区某些层煤中存在Ga的地球化学异常,某些煤层通过初步"选矿"或提取可使Ga得到相当程度的富集,表明区内煤中Ga有一定的成矿前景。Gallium is a basic material and important strategic material. Therefore, based on the measured data of 5079 samples from coal resource exploration, the authors have investigated gallium in coal seams from 19 state programmed mining districts. The evaluation principle of ore-forming potential of gallium in coal was established, have circled out geochemical anomalies of gallium in coal, predicted resources and distribution pattern, ore-forming potential roughly discussed. It was showed that, although gallium content in coal seams of assessed districts is not up to cut-off industrial grade, hut some geochemical anomalies in some coal seams, the gallium they represented can be enriched through preliminary ore dressing, that is to say gallium in coal seams of the districts might have certain prospect.

关 键 词：煤炭国家规划矿区 镓 地球化学异常 资源 成矿前景 

分 类 号：P618.74[天文地球—矿床学] P595[天文地球—地质学]