摘要
播卡矿田南部铜矿分为两大类:层控型铜矿和热液型铜矿。层控型铜矿赋矿层位主要为落雪组底部米黄色中厚层铁质白云岩及因民组褪色过渡层位,位于因民组与落雪组界面处;热液型脉状铜矿赋矿层位主要为青龙山组及黑山组。研究总结了两类矿床类型的特征,分析了控矿因素,探讨了铜矿物质来源及铜矿形成机制,建立了找矿标志。最后指出,在播卡矿田人占石、小石将军地区也应该存在落雪组层控型铜矿床。因此,在勘查工作中应加大对隐伏落雪组的勘查力度,以期能找到层控型铜矿。
The south copper deposit in Boka ore field was divided into two types： stratabound type and hydrothermal type. The orebearing strata of stratabound copper deposit was primary ferrous dolimite located in the bottom of Luoxue Formation and the color fading transitional strata of Yinmin formation, lying between the bordering area of Yinmin Formation and Luoxue Formation. The ore-bearing strata of hydrothermal veined was primary Qinglongshan Formation and Heishan Formation. The authors ummarized the characteristics of the two types of copper deposits, analyzed the ore-controlling factors and discussed the material sources for copper deposit and set up ore-searching indictors. It was concluded that Renzhanshi and Xiaoshijiangjun areas were located in stratabound copper deposit of 1,uoxue Formation and were likely become potential copper deposits if intensive prospecting were conducted there.
出处
《地质学刊》
CAS
2012年第1期17-22,共6页
Journal of Geology
关键词
播卡铜矿
矿床特征
控矿因素
形成机制
云南东川
Boka copper deposit
Deposit characteristics
Ore-controlling factors
Formation mechanism
Dongehuan, Yunnan
