1. Mineral Exploration Program, Pan African University Life and Earth Sciences Institute (including Health and Agriculture), Ibadan, Nigeria
2. Department of Geology, University of Ibadan, Ibadan, Nigeria
3. Department of Geology, Faculty of Sciences and Techniques, Marien NGOUABI University, Brazzaville, Republic of Congo
4. Département de Géologie, Université Officielle de Ruwenzori, Butembo, Democratic Republic of Congo