Dr. Donald Hermann Fossi is a geoscientist and graduate student lecturer at Lakehead University, Canada, with a parallel research appointment at the Spatial Imagery Research Centre, Institute for Geological and Mining Research (IRGM), Yaoundé, Cameroon. He earned his Ph.D. in Earth Sciences from the University of Yaounde I, where his passion for understanding the geological fabric of Central Africa first took shape. Over the years, Dr. Fossi has built a research profile bridging classical field geology and modern analytical methods. His work covers igneous and metamorphic petrology, geochronology, isotope geochemistry, structural geology, and crustal differentiation in orogenic belts, focusing on subduction and collision tectonics. A key aspect of his research links orogenic processes with ore systems, especially Ni-Cu-PGE and Zn–Ag–Cu mineralisation, using ore petrography, sulfur isotopes, and exploration geochemistry. His findings have been published in leading international journals including Minerals, Lithos, the Arabian Journal of Geosciences, the Journal of African Earth Sciences, China Geology, and International Geology Review. He has also presented his research at the prestigious Goldschmidt Conference. Dr. Fossi is a member of the Society of Economic Geologists (SEG) and the Geological Association of Canada (GAC) and is dedicated to advancing geoscience and mentoring future earth scientists.