金川铜镍矿床地质特征探采对比及深边部成矿预测  

Characteristic of Jinchuan Cu-Ni Deposit,Comparison of Exploration and Mining and Metallogenic Prediction on Deep Part and Peripheral Part

作　　者：张建辉 Zhang Jian-hui

机构地区：[1]镍钴资源综合利用国家重点实验室 [2]金川镍钴研究设计院

出　　处：《金川科技》2023年第1期1-7,25,共8页Jinchuan Science and Technology

摘　　要：经过探采对比研究,金川铜镍矿床超基性岩矿体的形态、产状及其与北东东走向断裂构造关系同地质勘探时期的资料相对比发生了很大变化。F8、F?、Fa、Fa'、F16-1、F16北东东走向的断裂组并没有错断金川矿床4个矿区超基性岩矿体。地勘时期对含矿岩体呈北西向展布特征的总结不能代表岩矿体的产状特征,金川铜镍矿床岩矿体主要由三组产状组组成。金川铜镍矿床超基性岩矿体的形态、产状及其与北东东走向断裂构造表现出明显的组合规律。北东东走向断裂构造是成矿期构造,是矿床重要的控矿构造、导矿构造。北东东走向断裂构造具有转换断层的性质,反映了金川矿床形成时的构造环境。根据探采对比提出的新的成矿规律认识,在矿区深部预测了6个成矿靶区,对矿床外围也进行了成矿预测。After the exploration and mining comparative study,it is found that the form and occurrence of ultramafic ore body and its relationship with the NEE-strike fracture structure have changed greatly by comparing with the data from geological exploration period of Jinchuan copper-nickel deposit.The NEE-strike fracture structure,including F8,F?,Fa,Fa',F16-1,and F16,doesn't stagger the ultramafic ore body covering four mining areas of Jinchuan deposit.The summary of a NW distribution of orebearing rock mass during exploration can't represent the occurrence characteristics of ore bodies.The ore body of Jinchuan Cu-Ni deposit mainly consists of three occurrence groups.Morphology and occurrence of ultramafic ore body,and the NEE-strike fracture structure show clear combination regularity.The NEE-strike fracture is a structure formed in metallogenic period,and also an orecontrolling structure and an ore-guiding structure,which has a characteristic of transforming fault,reflecting the tectonic environment to form Jinchuan deposit.According to the understanding of new metallogenic regularity obtained through the comparison of exploration and mining,six meallogenic targets are predicted in the deep part of the mining area,and a metallogenic prediction is also conducted in the periphery of the deposit.

关 键 词：金川铜镍矿床 探采对比超基性岩 断裂构造组 成矿预测 转换断层 

分 类 号：P61[天文地球—矿床学]