大兴安岭成矿带找矿工作新进展
The new progress in ore prospecting within Daxing’anling mineralization belt, China
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摘要: 内蒙古自治区地质调查院近年在大兴安岭成矿带中段西坡，通过开展1∶5万矿产资源远景调查和矿产资源评价工作，发现了一批非常有前景的矿产地。选择其中5处较好的矿产地进行了部分地段详查，4处达中型矿床规模，1处可达大型矿床规模。选择2处进行了普查，见矿较好，目前正在工作，均有望成型。根据成矿地质条件、物化探异常特征及普查孔控制情况分析，各矿床均有扩大规模的可能。综合分析各矿产地成矿地质条件，二连-东乌旗和阿尔山-梨子山-博克图2个成矿远景区均具有较好的找矿前景，进一步开展地质勘查工作有望实现找矿工作的重大突破。Abstract: Recently, a number of potential mineralization points have been found in the western of Daxing′anling mineralization belt through 1:50000 perspective survey and evaluation of mineral resources by Geological Survey Institute of Inner Mongolia. Five mineralization points have been partial investigated in detail. One of them may be a large-scale mineral deposit, and others are medium-scale deposits. By general survey, polymetal mineralization of two points are better and may be become certain-sized mineral deposits. Based on metallogenic geological conditions, geophysical and geochemical anomalies and general investigation hole, the deposits of above might have the potential to expand. Comprehensive analyses of the mineral and ore-forming geological conditions, there have better prospects in the two areas discussed in this article, and they are from Erlian to Dongwuqi and from Aershan through Lizishan to Boketu. If further geological survey works were done, there would have a major breakthrough in exploration.
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