坦桑尼亚鲁夸行政区姆潘达县Manyoro铁矿区矿床地质特征及找矿标志
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摘要
Manyoro铁矿区位于坦桑尼亚西部,坦桑尼亚克拉通与赞比亚克拉通之间的Ubendian造山带内。矿区内出露下元古界地层,矿体赋存于下元古Ubendian超群的片麻岩中,含矿岩石为条带状磁铁石英岩(BIF)。通过区域地质背景、矿区地质、矿床地质、矿床成因等分析,认为矿区铁矿床为BIF沉积--变质型矿床,地层控矿特征明显。为坦桑尼亚中西部鲁夸地区进一步开展矿产资源调查工作提供了基础地质资料。
Manyoro Iron Mine is located in Western Tanzania,Ubendian orogenic belt between Tanzania Craton and Zambia Craton.Lower Proterozoic strata are exposed in the mining area,Ore bodies occur in gneiss of the Lower Proterozoic Ubendenian supergroup,The ore-bearing rocks are banded magnetite quartzite(BIF).Based on the analysis of the genesis of geological deposit and geological deposit in the mining area with regional geological background,it is concluded that the iron deposit in the mining area is a BIF sedimentation-metamorphic deposit,and the stratigraphic ore-controlling characteristics are obvious,which provides basic geological data for the further investigation of mineral resources in lukwa region of central and western Tanzania.
Manyoro Iron Mine is located in Western Tanzania,Ubendian orogenic belt between Tanzania Craton and Zambia Craton.Lower Proterozoic strata are exposed in the mining area,Ore bodies occur in gneiss of the Lower Proterozoic Ubendenian supergroup,The ore-bearing rocks are banded magnetite quartzite(BIF).Based on the analysis of the genesis of geological deposit and geological deposit in the mining area with regional geological background,it is concluded that the iron deposit in the mining area is a BIF sedimentation-metamorphic deposit,and the stratigraphic ore-controlling characteristics are obvious,which provides basic geological data for the further investigation of mineral resources in lukwa region of central and western Tanzania.
引文
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于彩虹,李庆哲,祁亚辉等.中高空间分辨率多光谱遥感数据在坦桑尼亚鲁夸地区找矿预测中的应用[J].矿产勘查,2015,6(4):478-486.
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孙宏伟,刘晓阳,唐文龙,吴兴源.坦桑尼亚主要成矿区带的划分及成矿特征[J].地质找矿论丛,2015,30:18-26.
Stendal H,Frei R,Muhongo S,Ramussen T M,Mnali S,Petro F,Temu EB.2004.Gold potential of the Mpanda Mineral Field,SW Tanzania:evaluation based on geological,lead isotopic and aeromagnetic data[J].Journal of African Earth Sciences,2004,38:437-447.