“511”综合找矿方法在矿产勘查中的应用——以北武夷篁碧-梨子坑铅锌银铜成矿带为例
The application of “511” synthetic prospecting methods to mineral explorations——An example from Huangbi-Lizikeng lead-zinc-silver-copper metallogenic belt in northern Wuyi mountain area
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摘要: 在北武夷篁碧——梨子坑中生代火岩区通过1:20万铅锌银铜成矿预测优选找矿靶区后,运用"511"综合找矿方法开展异常查证、普查及勘查工作。其基本步骤为首先布置1:50000水系沉积物地球化学测量,以分解区域异常,逐步缩小找矿靶区,查找成矿有利地段;然后布置1:10000~1:20000土壤地球化学测量,以发现与矿化有关的各类次生异常,并查清致矿异常源,追踪矿化线索;最后展开1:10000~1:25000地质填图,并施工地表槽探、浅部坑探、中深部钻探等,最终发现生米坑、蔡家坪、金竹坪等找矿前景巨大的铅锌银铜钼矿区,找矿效果显著。Abstract: The 1:200 000 lead-zinc-silver-copper mineralization forecast was conducted in Mesozoic igneous district in Huangbi-Lizikeng area, Northern Wuyi. After optimized the prospecting targets areas, anomalies inspection, geological survey and exploration work applying the "511" synthetic prospecting methods were followed. The basic steps are follows:first we did layout of 1:50000 stream sediment geochemical survey in order to decompose the regional anomalies gradually narrowing the prospecting targets areas for finding the favorable mineralization areas. Then we conducted the 1:10000~2:0000 survey of soil geochemistry in the favorable mineralization areas in order to find all types of secondary anomalies related to mineralization. Finally we found lead-zinc-silver-copper- molybdenum mining areas of great prospects in Shengmikeng, Caijiaping and Jinzhuping. The methods we used showed notable effects in mining prospecting.
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