坦桑尼亚西北部卡邦加铜镍硫化物矿床研究进展  

New Progress on the Kabanga Cu-Ni Sulphide Deposits Research, Northwestern Tanzania

作　　者：何胜飞[1] 孙凯[1] 王杰[1] 任军平[1] 刘晓阳[1] 

机构地区：[1]天津地质矿产研究所,天津300170

出　　处：《地质调查与研究》2014年第1期6-12,共7页Geological Survey and Research

基　　金：国家地质科研项目:非洲中南部重要矿床地质背景;成矿作用和找矿潜力研究(1212011220910)

摘　　要：通过对卡邦加铜镍硫化物矿床近年来研究成果的初步总结,系统分析整理了矿床的地质特征,如矿体分布形态、矿石特征和矿体地球化学特征等。作者认为卡邦加铜镍硫化物矿床是超基性岩体侵入基巴拉带(卡拉圭-安科连)变质沉积岩内形成的贯入式岩浆融离型矿床。其矿体位于超基性岩底部,并与变质沉积岩一同经历后期的碰撞造山作用。矿体中的S主要来源于上地壳变质沉积岩。The authors summarized previous research results of the Kabanga Ni-Cu sulphide deposits in north- western part of Tanzania. They analyze its geological characteristic, including the orebody shape, ore characteris- tics and geochemical characteristics, and suggest that the kabanga Ni-Cu sulphide deposit is a type of in- trused-Magmatic segregation deposit. The high MgO mafic-ultramafic magma intruded the metasedimentary rocks of the Kibaran Melt （Karagwe-Ankolean） along conduits and emplaced in the lowest of mafic-ultramafic in- trusions and then the deposits folded with the sedimentary rocks of the Kibaran Melt. The S of the kabanga Ni sul- phide deposits might be caused from the upper crustal material-the metasedimentary rocks of Karagwe-Ankolean.

关 键 词：卡邦加(Kabanga) 铜镍硫化物 基性-超基性 坦桑尼亚 

分 类 号：P618.41[天文地球—矿床学] P618.63[天文地球—地质学]