| 白德胜,杨怀辉,刘正好,李水平,程华.坦桑尼亚太古宙绿岩带BIF型金矿地质-地球化学特征——以马黑加金矿床为例[J].地质找矿论丛,2016,31(1):63-70 |
| 坦桑尼亚太古宙绿岩带BIF型金矿地质-地球化学特征——以马黑加金矿床为例 |
| Geological and geochemical characteristics of BIF type gold deposit in Tanzanian archean greenstone belt:A case of Maheiga gold deposit |
| 投稿时间：2015-01-06 |
| DOI：10.6053/j.issn.1001-1412.2016.01.008 |
| 中文关键词: 马黑加金矿床 BIF型金矿 矿体特征 地球化学特征 坦桑尼亚 |
| 英文关键词:Maheiga gold deposit BIF type gold deposit ore body characteristics geochemical characteristics Tanzania |
| 基金项目:国外矿产资源风险勘查专项资金项目(编号:2010-188,W-2012-1-17,W-2012-1-18)资助。 |
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| 中文摘要: |
| 坦桑尼亚马黑加金矿是典型的BIF型金矿,位于坦桑尼亚克拉通的太古宙卡哈马绿岩带,是隐伏的条带状含铁建造型(BIF)金矿床。该矿床受地层、构造双重控制。地层强烈褶皱并发生剪切,含矿岩性为上尼安萨(Nyanzian)群上下段接触带附近的中基性火山岩。其主要化探异常元素组合为Au-As-Sb-Ag-Hg-Pb-Ba,其中Au,As,Sb在含矿的条带状磁铁石英岩中富集明显,是深部寻找金盲矿体的主要指示元素。 |
| 英文摘要: |
| Maheiga gold deposit in Tanzania is a typical BIF type gold deposit located in a concealed BIF in the Archaean Kahama greenstone belt of the Tanzania Craton. It is controlled by both strata and structure. The formation is strongly folded and sheared. Intermediate-basic volcanics at contact between the upper and lower member of Nyanzian group is the host. Au,As,Sb,Ag,Hg,Pb is the geochemical anomly element combination and Au, As, Sb are enriched in BIF thus are the indicators for prospecting blind gold ore bodies to depth. |
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