Gold mineralisation in the Essakane goldfield in Burkina Faso,West African craton |
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| Institution: | 1. Centre of Studies in Resources Engineering, Indian Institute of Technology Bombay, Powai, 400076, India;2. Centre for Exploration Targeting, University of Western Australia, Crawley, 6009 WA, Australia;3. Corporate Geoscience Group, PO Box 5128, Rockingham Beach, WA 6969, Australia;4. Economic Geology Research Centre, James Cook University, Townsville, QLD 4811, Australia;1. Université de Toulouse, CNRS, Géosciences Environnement Toulouse, Institut de Recherche pour le Développement, Observatoire Midi-Pyrénées, 14 Av. Edouard Belin, F-31400 Toulouse, France;2. Université Sidi Mohamed Ben Abdellah, Faculté des Sciences Dhar El Mahraz, Département de Géologie, BP 1796 Fès, Morocco;3. Iamgold Exploration, 3503 Av. Al Qods Hippodrome, BP 2699 Bamako, Mali;4. Avnel Gold Mining Limited, 39 Cheval Place, London SW7 1EW, UK;1. Université de Toulouse, CNRS, Géosciences Environnement Toulouse, Institut de Recherche pour le Développement, Observatoire Midi-Pyrénées, 14 Av. Edouard Belin, F-31400 Toulouse, France;2. Azumah Resources Ghana limited, PMB CT452, Cantonments, Accra, Ghana;3. IFAN Cheikh Anta Diop, Dakar, Senegal;4. Centre for Exploration Targeting, School of Earth and Environment, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia;1. Université de Toulouse; UPS/IRD/CNRS, GET, 14 av. E. Belin, F-31400 Toulouse, France;2. Mesté Duran 32100 Condom, France;1. Université des Sciences, des Techniques et des Technologies de Bamako, Département de Géologie, BP E 3206 Bamako, Mali;2. Université de Toulouse, CNRS, Géosciences Environnement Toulouse, Institut de Recherche pour le Développement, Observatoire Midi-Pyrénées, 14 Av. Edouard Belin, F-31400 Toulouse, France;3. ONG-D Le Soleil dans la Main asbl, 48 Duerfstrooss, L-9696 Winseler, Luxembourg |
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| Abstract: | The West African craton is known for its structurally hosted Au deposits in Ghana, Burkina Faso, Côte d'Ivoire, Mali and Niger. The Essakane goldfield in northeast Burkina Faso has produced 1 606,000 oz of gold since 2010 from the Essakane Main Zone. The Essakane goldfield is made up of several exploration and artisanal sites that include; Essakane Main Zone, Gossey, Falagountou, Sokadie, Tin Zoubratan, Essakane North and South, Korizéna, Bom Kodjélé, Tin Taradat, Tassiri, Gaigou, and Takabangou. Gold mineralisation in sheeted and stockworks quartz–carbonate and tourmaline veins occurs with pyrite, arsenopyrite, and traces of pyrrhotite, galena and hematite. It is hosted in sheared, folded and contact metamorphosed volcanic, volcanoclastic and sedimentary Birimian Supergroup sequences. The maximum age of gold mineralisation in the Essakane goldfield is syn-deformational and formed during the Eburnean Orogeny (D2) at 2130–1980 Ma. |
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