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辽宁红透山铜-锌块状硫化物产在太古宙绿岩带中,矿床形成后经历了强烈的变形和变质,变质程度达高级角闪岩相。野外和显微镜研究表明,矿石在进变质过程中发生过强烈的机械再活化和重结晶,但各种进变质结构大部分已被变质峰期的全面重结晶所清除,目前保存着的结构主要是变质峰期和退变质过程的产物。退变质过程以黄铁矿变斑晶生长、矿石糜棱岩的形成、二次退火和化学再活化为特征。矿床中高度富集铜和金的矿石是韧性剪切形成的矿石糜棱岩受退变质流体叠加而成。磁黄铁矿主要是同生沉积后重结晶的产物,另有一部分由退变质热液形成,而黄铁矿变斑晶则有沉积-重结晶、磁黄铁矿退变质脱硫和热液叠加多种成因。世界各地块状硫化物矿床中的磁黄铁矿和黄铁矿各有三种成因类型。磁黄铁矿的类型有:同生沉积-变质重结晶、同生沉积黄铁矿变质和退变质热液充填或交代;黄铁矿的类型有:同生沉积-变质重结晶、磁黄铁矿退变质脱硫和退变质热液充填或交代。红透山矿区的退变质流体具有从早到晚氧逸度升高的趋势。
Liaoning Hongtoushan copper-zinc massive sulfide production in the Archean greenstone belt, after the formation of the deposit underwent a strong deformation and metamorphism, metamorphism to the advanced amphibolite facies. Field and microscopic studies show that the ore undergoes intense mechanical reactivation and recrystallization during the metamorphic process. However, most of the addi- tional metamorphic structures have been cleared by total recrystallization of metamorphic peaks. The structures currently preserved are mainly Metamorphic peak and retrogressive process of the product. The metamorphic process is characterized by the growth of speckle pyrite, the formation of ore mylonites, secondary annealing and chemical reactivation. The ore that is highly enriched in copper and gold in the deposit is formed by ductile shearing of mylonite by the metamorphic fluids superimposed. Pyrrhotite is mainly the product of recrystallization after co-deposition, and another part is formed by retrograde hydrothermal fluids, while the pyrite speckle has sedimentary-recrystallization, pyrrhotite degeneration and hydrothermal superposition A variety of causes. Pyrrhotite and pyrite in massive sulphide deposits all over the world each have three genetic types. The types of pyrrhotite are: syngenetic sedimentary-metamorphic recrystallization, metasedimentary sedimentary pyrite metamorphism and metamorphic hydrothermal filling or replacement; types of pyrite include syngenetic sedimentation-metamorphism recrystallization, magnetite The metamorphic desulfurization and retrograde hydrothermal filling or replacement. The retrograde fluid in the Hongtoushan mining area has the tendency of increasing the oxygen fugacity from early to late.