摘要
本矿床是咯拉通克铜镍矿化集中区一大型铜镍硫化物矿床。含矿岩体侵位于下石炭统南明水组。岩浆分异良好,自上而下依次有闪长岩相,苏长岩相、橄榄苏长岩相、冷凝带为辉绿辉长岩相,岩体呈透镜状,体积O.023km^3。全岩矿化,主要矿体赋存于岩体中下部,由含矿岩浆侵位后就地分异形成的浸染状矿石和深源岩浆熔离矿浆后期贯入形成的致密块状矿石所组成,二者之间有明显的地质和物理化学界面,具叠生特征。矿石铜镍品位高且铜大于镍,有贵金属稀散元素可以综合利用。矿床成因类型属岩浆熔离叠生铜镍硫化物矿床。
The mineral deposit under discussion is a major Cu-Ni sulfide deposit in the concentration area of Cu-Ni mineralization at Karatongke, Xinjiang. The ore-bearing intrusion emplaced in the Lower Carboniferous Nanmingshui Formation shows excellent magmatic differentiation, consisting successively of diorite facies, norite facies, hyperite facies, and diabasegabbro (chill zone) in an ascending order. The intrusion is lenticular in shape and is 0.023 km3 in volume. While all the rocks are mineralized, the main ore bodies occur in the middle and lower parts of the intrusion and are composed of disseminated ores formed by in-situ differentiation of the ore-bearing magma after its emplacement and compact-massive ore formed by subsequent injection of the liquated ore-bearing solution of the anatectic magma. The two types of ores show a remarkable geological and physico-chemical interface and are characterized by their superimposed occurrance. The ores have high contents of Cu and Ni, with the former higher than the latter, and contain precious metals and rare element which can be used as byproducts. Genetically, the deposit is a Cu-Ni sulfide of magmatic liquation and superimposition.
出处
《地球学报》
EI
CAS
CSCD
1993年第Z1期95-102,共8页
Acta Geoscientica Sinica
基金
新疆"305"项目
