Institute: Ministry of Mines, Industry and Technological Development, Cameroon
Title: Researcher/Senior Geologist
Country/Region: Cameroon
Period: 2025/5/1 - 2025/9/30
Theme: Isotope Evolution in high-μ (HIMU) Reservoirs beneath the Cameroon Volcanic Line: Implication for Global Mantle Recycling
Host: Hikaru IWAMORI(ERI), Tetsuya YOKOYAMA(IST)
Introduction: I am a senior staff in the Department of Mines of the Ministry of Mines, Industry and Technological Developments, Yaounde-Cameroon. I am equally a visiting lecturer in the Department of Geology, Mining and Environmental Sciences of the University of Bamenda-Cameroon. For over twelve years, I have been investigating the origin and petrogenesis of volcanic rocks along the Cameroon Volcanic Line (CVL). My team (Japanese and Cameroonian researchers) use different petrological and geochemical approaches to decipher petrogenetic processes beneath the CVL and the African continent.
- How the hot Earth’s interior (i.e., asthenosphere) convects, such as a rising plume or curtain beneath the CVL, with a specific geochemical signature (termed “HIMU”) which may represent global recycling of subducted material, or only resulting from a metasomatised SCLM, and
- How the hot asthenospheric flow interacts with the cold surface lid (i.e., lithosphere), and how the interaction differs between the oceanic and the continental sectors of the CVL.
At ERI, under the supervision of Pr Tetsuya Yokoyama and Hikaru Iwamori, we shall generate more geochemical data major volcanic centres maar bearing volcanoes e.g., Lake Monoun that erupted CO2 gas in 1984. The data alongside existing data shall be interpreted conventionally and statistically using the Independent Component Analysis (ICA) to provide insight into the two critical questions above. We hope to collaborate with other researchers of ERI for the advancement of science.
Fiscal Year: 2025