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云南省洱源县老马涧斑岩型铅锌铜矿床,简称老马涧铅矿,有“近、富、优、盲”特点。1970年以来,“边探边采,以探为主”,完成坑道和钻探进尺各数千米,投资80万元;但由于地质规律不清,找矿方向不明,所获矿量不多,资源危急。我们曾在老马涧铅矿做了大量地质工作,初步总结了成矿规律,指出了找矿方向,首批布置的地表工程,已初见成效。
Lamamadian porphyry Pb-Zn-Cu deposit in Eryuan County, Yunnan Province, referred to as Laomajian lead ore, has the characteristics of “near, rich, excellent and blind.” Since 1970, “exploration and mining, exploration-based” to complete the tunnels and drilling footage each kilometer, 800,000 yuan investment; but because of unclear geological laws, prospecting direction is unknown, the amount of ore received is small, Resource crisis. We have done a lot of geological work in Laojiajian lead mine, summarized the metallogenic regularity and pointed out the prospecting direction. The first batch of surface engineering has achieved initial success.