坦桑尼亚班巴拉维石墨矿与中国典型地区石墨矿对比研究  

Contrastive Study on Bambarawe Graphite Deposit in Tanzania with GraphiteDeposits in Typical Areas of China

作　　者：祁东[1] 张冬霞 曹义甲[1] 柴丽洁 陈璐璐[1] 黄达 Qi Dong;Zhang Dongxia;Cao Yijia;Chai Lijie;Chen Lulu;Huang Da(No.2 Institute of Geological&Mineral Resources Survey of Henan,Zhengzhou,Henan 450001;Institute of Surveying Mapping and Geoinformation of Henan,Zhengzhou,Henan 450003)

机构地区：[1]河南省地质矿产勘查开发局第二地质矿产调查院,河南郑州450001 [2]河南省地质矿产勘查开发局测绘地理信息院,河南郑州450003

出　　处：《资源环境与工程》2020年第1期36-40,共5页Resources Environment & Engineering

摘　　要：班巴拉维石墨矿位于坦桑尼亚中东部的莫罗戈罗—多多马石墨成矿带上,其含矿岩性为古元古代乌萨迦兰超群鲁匡古勒组的石墨黑云斜长片麻岩。矿区内共发现13个石墨矿体,呈层状、似层状近南北向展布,倾角11°~45°。其中Ⅴ号、Ⅸ号石墨矿体为该矿区的主矿体,在矿区南部共圈定(333)+(334)?类石墨矿石量约3807.20万t,石墨矿物量约237.37万t。通过班巴拉维石墨矿研究及与中国典型地区石墨矿对比,发现它们在矿床地质特征、变质特征、成矿时代、炭质来源、矿体及矿石类型特征、岩石地球化学特征等方面具有相似性,进一步证明班巴拉维石墨矿属于区域变质型石墨矿床。The Bambarawe graphite deposit is located in the Morogoro-Dodoma graphite metallogenic belt in central and eastern Tanzania.Its ore-bearing lithology is the graphite biotite plagioclase gneiss of the Lukuanggule Formation of the Paleoproterozoic Usagaran supergroup.A total of 13 graphite ore bodies have been found in the mining area,which are layered and quasi-layered nearly north-south direction with inclination of 11~45.Among them,No.5 and No.9 graphite ore bodies are the main ore bodies in the mining area.In the southern part of the mining area,there are about 38.072 million tons of graphite ore and 2.3737 million tons of graphite minerals divided into(333)+(334)?.Based on the study of the Bambarawe graphite deposit and the comparison with the graphite deposits in typical areas of China,it is found that they are similar in geological characteristics,metamorphic characteristics,metallogenic age,carbon source,ore body and ore type characteristics,and petrochemical characteristics,which further proves that the Bambarawe graphite deposit belongs to regional metamorphic graphite deposit.

关 键 词：晶质石墨矿 区域变质 对比分析 坦桑尼亚 

分 类 号：P619.252[天文地球—矿床学]