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金厂矿区位于哀牢山变质带的西亚带.区内构造运动剧烈,岩浆活动频繁,有超基性岩侵入.出露地层见图1,有古生界哀牢山变质岩系(Pz)和中生界上三迭统一碗水组(T_(3y)).前者为石英岩、硅化砂岩、板岩、千枚岩和片岩等;后者为砾岩、砂岩、灰岩和页岩等.燕山期超基性岩为斜辉辉橄岩(φ_2)和斜辉橄榄岩(φ_3).金矿和硫化镍矿赋存于超基性岩体西接触带的Pz地层中,受断裂控制,镍矿沿层产出,金矿一般穿层产出,且常见含金石英脉穿插硫化镍矿体.在岩体接触带进行过化探工作,地质效果良好.
The Jinchang Mine is located in the West Asia Belt of the Ailao Mountain metamorphic belt, with intense tectonic movements and frequent magmatic activities with intrusive ultramafic intrusions. The exposed stratigraphy is shown in Figure 1 with the Paleozoic Ailao Mountain metamorphic series (Pz) (T_ (3y)) in the Mesozoic Upper Triassic, with the former being quartzite, silicified sandstone, slate, phyllite and schist, the latter being conglomerate, sandstone, limestone and shale . The Yanshanian ultrabasic rocks are galena (φ_2) and adhibitolite (φ_3). The gold and nickel sulphides occur in the Pz formation in the western contact zone of ultramafic rocks and are controlled by faults , And the nickel ore is produced along the strata and the gold strata are usually produced through strata and the common gold-bearing quartz vein intervenes with the sulfide nickel ore body. The geochemical work has been done in the contact zone of the rock mass and the geological effect is good.