Characteristics of Gold and Its Mineralization Style in the Boulon Djounga Eastern Perimeter of Liptako Mining Company (Central Southwestern Niger) — Oak Academic Publishing
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Characteristics of Gold and Its Mineralization Style in the Boulon Djounga Eastern Perimeter of Liptako Mining Company (Central Southwestern Niger)
Department of Geology, Faculty of Science and Techniques, Abdou Moumouni University, Niamey, Niger
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Department of Geology, Faculty of Science and Techniques, Abdou Moumouni University, Niamey, Niger
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Department of Geology, Faculty of Science and Techniques, Dan Dicko Dankoulodo University, Maradi, Niger
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Department of Geology, Faculty of Science and Techniques, Abdou Moumouni University, Niamey, Niger
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Department of Geology, Faculty of Science and Techniques, Abdou Moumouni University, Niamey, Niger
1 Department of Geology, Faculty of Science and Techniques, Abdou Moumouni University, Niamey, Niger
2 Department of Geology, Faculty of Science and Techniques, Abdou Moumouni University, Niamey, Niger
3 Department of Geology, Faculty of Science and Techniques, Dan Dicko Dankoulodo University, Maradi, Niger
4 Department of Geology, Faculty of Science and Techniques, Abdou Moumouni University, Niamey, Niger
5 Department of Geology, Faculty of Science and Techniques, Abdou Moumouni University, Niamey, Niger
The Boulon Djounga eastern perimeter is part of the Tiawa operating permit of the Société des Mines du Liptako (SML), located in the central southwestern part of Liptako (Niger). In this study, we used field data, Reverse Circulation (RC) surveys and chemical analyzes of gold to determine the characteristics of gold and its mineralization style. The eastern perimeter of Boulon Djou nga is represented by a succession of metabasalts and metasedim ents both intersected by intrusions of quartz and dolerite dykes, and covered by sandstone and clayey rocks. Gold is present in low contents (0.00 - 0.30 ppm) in the sedimentary cover and in medium (0.30 - 1.00 ppm) or high contents (1.00 - 4.534 ppm) in the metasediments, and in the gray quartz veins and locally i n the volcanics. It exists in a disseminated state or in a concentrat ed state i n the surrounding areas in the form of discrete grains associated w ith sulphurous minerals (pyrite: FeS 2 , chalcopyrite: CuFeS 2 or arsenopyrite: FeAsS). The presence of gold in the quartz veins, and the NE-SW and NW-SE orientations of the ore bodies suggest that the eastern Boulon Djounga gold mineralization would be established during a late magmatic extensive phase.
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