地质调查与研究
地質調查與研究
지질조사여연구
GEOLOGICAL SURVEY AND RESEARCH
2014年
1期
6-12
,共7页
何胜飞%孙凯%王杰%任军平%刘晓阳
何勝飛%孫凱%王傑%任軍平%劉曉暘
하성비%손개%왕걸%임군평%류효양
卡邦加(Kabanga)%铜镍硫化物%基性-超基性%坦桑尼亚
卡邦加(Kabanga)%銅鎳硫化物%基性-超基性%坦桑尼亞
잡방가(Kabanga)%동얼류화물%기성-초기성%탄상니아
Kabanga%Ni-Cu Sulphide%mafic-ultramafic%Tanzania%deposit genesis%geochemical characteristic
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。
通過對卡邦加銅鎳硫化物礦床近年來研究成果的初步總結,繫統分析整理瞭礦床的地質特徵,如礦體分佈形態、礦石特徵和礦體地毬化學特徵等。作者認為卡邦加銅鎳硫化物礦床是超基性巖體侵入基巴拉帶(卡拉圭-安科連)變質沉積巖內形成的貫入式巖漿融離型礦床。其礦體位于超基性巖底部,併與變質沉積巖一同經歷後期的踫撞造山作用。礦體中的S主要來源于上地殼變質沉積巖。
통과대잡방가동얼류화물광상근년래연구성과적초보총결,계통분석정리료광상적지질특정,여광체분포형태、광석특정화광체지구화학특정등。작자인위잡방가동얼류화물광상시초기성암체침입기파랍대(잡랍규-안과련)변질침적암내형성적관입식암장융리형광상。기광체위우초기성암저부,병여변질침적암일동경력후기적팽당조산작용。광체중적S주요래원우상지각변질침적암。
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.