| 几内亚西南部莫拉铁矿区地质特征及找矿方向 |
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| 引用本文： | 曹健,田麒,李宏臣,付方建,江胜国.几内亚西南部莫拉铁矿区地质特征及找矿方向[J].地质找矿论丛,2016,31(1):71-76. |
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| 作者姓名： | 曹健 田麒 李宏臣 付方建 江胜国 |
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| 作者单位： | 天津华北地质勘查局地质研究所,天津,300171 |
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| 摘 要： | 莫拉(Mola)铁矿区位于几内亚金迪亚省,西非克拉通莱奥(Leo)地盾西部边缘的太古代Kenema-Man Domain地盾与西侧罗克列德褶皱带(Rokelide Fold Belts)的接壤地带。区内发育铁角砾岩型、似条带状赤铁矿型2类矿体。研究认为,铁角砾岩型铁矿主要由后期风化淋滤作用对原生赤铁矿改造并富集形成,赋存于地表;似条带状赤铁矿矿体是经初始海底热液喷溢沉积和后期构造作用改造而富集形成。
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| 关 键 词： | 莫拉铁矿 构造 矿床成因 找矿标志 几内亚 |
| 收稿时间： | 2016/1/12 0:00:00 |
Geological characteristics of Mola iron ore area in the southwest of Guinea |
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| GAO Jian,TIAN Qi,LI Hongchen,FU Fangjian and JIANG Shengguo.Geological characteristics of Mola iron ore area in the southwest of Guinea[J].Contributions to Geology and Mineral Resources Research,2016,31(1):71-76. |
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| Authors: | GAO Jian TIAN Qi LI Hongchen FU Fangjian and JIANG Shengguo |
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| Institution: | Geological Institute of Tianjin North China Geological Exploration Bureau, Tianjin 300171, China;Geological Institute of Tianjin North China Geological Exploration Bureau, Tianjin 300171, China;Geological Institute of Tianjin North China Geological Exploration Bureau, Tianjin 300171, China;Geological Institute of Tianjin North China Geological Exploration Bureau, Tianjin 300171, China;Geological Institute of Tianjin North China Geological Exploration Bureau, Tianjin 300171, China |
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| Abstract: | Mola iron ore exploration area is located in the southwest of Guinea, the West African craton (Leo) on the western edge of the shield of the Archean (Kenema-Man Domain) shield and the Roque de fold belt (Rokelide Fold Belts) the border zone. Development of iron breccia type, exploration area like bandedhematite type two types of ore body. Iron breccia type of iron ore is mainly due toweathering and leaching of late, the primary hematite transformation andenrichment, occurs in the surface. A banded hematite ore is the initial seafloorhydrothermal sedimentary and tectonic reconstruction and enriched form. |
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| Keywords: | Mola iron ore area structure origin of deposit prospecting criteria Guinea |
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