论文部分内容阅读
作者在近几年找到多处大中型金矿及科研工作基础上,对东天山康古尔塔格地区大地构造、韧性剪切带、岩浆岩、地层和物化条件等进行了分析。提出矿带产于岛弧-海沟系,韧性剪切带控制金矿床,韧性剪切带内韧-脆性断裂控制金矿体分布,中-中酸性火山岩为主要容矿岩石,Ⅰ型花岗岩为矿液流动提供热能和部分矿质,金异常主要集中在岛弧带北缘,恰好位于莫霍面升高处。据此划分出三个成矿亚带;岛弧北缘金铜成矿亚带;海沟浊积岩型铜金成矿亚带;矽卡岩型硅灰石成矿亚带。并对各成矿亚带作了分析讨论。
Based on the finding of many large and medium-sized gold mines and scientific research work in recent years, the author analyzes the tectonics, ductile shear zones, magmatic rocks, strata and physico-chemical conditions in Kanggutageg area, eastern Tianshan. It is proposed that the orebelt should be controlled by the island arc-trench system and the ductile shear zone controlled gold deposit, the ductile-brittle fracture controlled gold orebody distribution in the ductile shear zone, the medium-intermediate acid volcanic rock as the main ore-hosting rock and the type I granite as the ore Fluid flow to provide heat and part of the mineral, gold anomalies are mainly concentrated in the northern margin of the island arc zone, just above the Moho rise. Accordingly, three metallogenic belt subdivisions are identified; gold-copper metallogenic belt in the northern margin of the arc; copper-gold mineralized sub-belt in the turbidite type; skarn-wollastonite metallogenic belt. And analyzed and discussed various mineralization subbands.