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根据区域锡矿带的岩浆岩、变质岩和沉积岩中金的分布资料分析,可以认为:金的出现是与含锡的岩浆建造有关,可以在以下情况下形成:①围岩具有比较有利的构造条件,与从熔融基质中金的残渣有关;②沿构造破坏带分布:在上层有富的热液,低层有生矿热液,呈放射延伸的岩浆柱分布;③当大面积自交代作用时,在再沉积作用中浸出金。金与锡共存在高基性的岩浆建造中,在此作用中,金和锡都显示出亲铜性。
According to the distribution of gold in the magmatic rocks, metamorphic rocks and sedimentary rocks in the tin zone of the area, it can be considered that the presence of gold is related to the formation of tin-bearing magma and can be formed in the following circumstances: ① The surrounding rock has a relatively favorable structure Condition, which is related to the residue of gold from the molten matrix; ② distribution along the structural failure zone: rich hydrothermal fluid in the upper layer and ore-forming hydrothermal fluid in the lower layer with distribution of radiative extension of magma column; ③ when large- , Leaching gold during redeposition. Gold and tin coexist in highly basic magmatic constructions, in which both gold and tin show a pro-copper character.