Prof. Johnson Manu

Contact info JManu@ug.edu.gh

Research Interest

1. Constraints on fluid composition and physical-chemical factors for the formation of the   Birimian gold deposits in Ghana

2. Development of gold exploration planning in Ghana for Ghanaians using the decision tree concept 

3. Geochemical evidence for base metals mineralization in Southwestern Ghana

 4. Planning and management modelling for small scale concessions

Publications

  • Kwabina Ibrahim, Johnson Manu, Frank Kwakyi Nyame, Samuel Nunoo and Francis Kwabena Berepong Owusu-Akyaw (2022). The significance of carbonates in gold mineralisation process of the Ashanti Gold Belt: Evidence from the country rocks of Ashanti and Prestea gold mines, Ghana. Science and Development, volume 6, No. 2, pp. 81-92.
  • Nunoo, S.,Manu, J., Owusu-Akyaw, F.K.B., Nyame, F.K. (2022). Impact of artisanal small-scale (gold and diamond) mining activities on the Offin, Oda and Pra Rivers in southern Ghana, West Africa: A scientific response to public concern. Journal Heliyon, 8 (12); https://doi.org/10.1016/j.heliyon.2022.e12323
  • Francis KB Owusu-Akyaw, Samuel Nunoo, Johnson Manu (2021). The state of selected major river bodies that drain mining vicinities in Ghana:  Negative impact from Artisanal small scale mining "Galamsey". GSA Connects 2021 in Portland, Oregon Abstract ID# 369803
  • Nyame, F. K., Armah, T. E. K., Ibrahim, K., Baah-Acheamfour, B., Manu, J. & Tigme, J. (2020) Manganese occurrence in the Mankwadzi area, Southern Kibi-Winneba metavolcanic Belt, Ghana: Typical or Atypical Palaeoproterozoic Birimian Mn Mineralization? Geological Society, London, Special Publications, DOI: https://doi.org/10.1144/SP502-2019-75) 
  • Ibrahim, K., Nyame, F. K., Armah, T., Manu, J. & Tigme, J. (2020) Petrography and geochemistry of manganiferous rocks in the Mankwadzi area in the southern Kibi-Winneba metavolcanic belt, Ghana: Implications for genesis of Mn formations in the Paleoproterozoic Birimian of West Africa (Island Arc, DOI: 10.1111/iar.12363)
  • Patrick Asamoah Sakyi, Ben-Xun Su, Johnson Manu, Daniel Kwayisi, Chris Y. Anani, Melesse Alemayehu, Sanjeewa P.K. Malaviarachichi, Prosper Nude and Ben-Can Su. (2020). Origin and Tectonic significance of the metavolcanic rocks and mafic enclaves from the Paleoproterozoic Birimian Terrane SE West African Craton. Geological Magazine, vol. 157, issue 3. pp. 1-18. DOI: https://doi.org/10.1017/S001675681900150X
  • Sakyi, PA, Manu, J., Su, B-X, Kwayisi, D., Nude, P., Dampare, S.B. (2018). Geochemical and isotopic evidence for the composition of the composition Palaeoproterozoic crust of the West African Craton in Ghana. Geological Journal, 1-18. https://doi.org/10.1002/gj.3387.
  • Tawiah, C., Manu, J., Nunoo, S., Hayford, E. (2018). A comparative study of bulk leach extractable gold (BLEG) and fire assay methods on the Wassa deposit at golden star Wassa mine limited. International Journal of Basic and Applied Sciences 7 (1), 15 - 19. https://doi.org/10.14419/ijbas.v7i1.8267