论文部分内容阅读
排山楼大型金矿床产于辽酉高级变质太古宙花岗岩－绿岩带中，受绿岩中、上部层位的基性－中酸性火山岩系和东西向韧性剪切带控制。容矿岩石主要是变安山质－英安质火山岩类。金矿围岩蚀变强烈。蚀变作用具分带性，从外带到内带可分为绿泥石化带、碳酸盐化带和黄铁矿－绢云母化带，各带之间没有明显界线。矿体与黄铁矿－绢云母化带关系密切。金矿石为矿化糜棱岩，主要金属矿物为黄铁矿和磁黄铁矿，金矿物为自然金。中深层次的韧性剪切作用为主要成矿作用，控制了矿体的就位空间和时间。
The large-scale gold deposit of Paishanlou is produced in the Liaoyou high-grade metamorphic granitic-greenstone belt controlled by the basic-intermediate acid volcanic rocks and the east-west ductile shear zone in the middle and upper strata of greenstone. The ore-bearing rocks are mainly of the Ananthan-Yingan volcanic rocks. Gold rock alteration strong. The alteration is zonogenic. From the outer zone to the inner zone, it can be divided into chloritization zone, carbonate zone and pyrite-sericitization zone. There is no clear boundary between the zones. The orebody is closely related to pyrite - sericitization belt. The gold ore is mineralized mylonite, the main metal minerals are pyrite and pyrrhotite, and the gold minerals are natural gold. Medium and deep ductile shear is the main mineralization, controlling the space and time of ore body in place.