Figure 4. Photographs and micrographs of Banefo-Mvoutsaha amphibolites. A) Occurrence of massive amphibolites interbedded with migmatitic gneisses and garnet-bearing gneisses. B) heterogranular granolepidoblastic texture. Noted the orientation of the minerals and the presence of amphibole-fish. C) LPNA micrograph showing oriented amphibole, quart, garnet and pyroxene. D) LPA micrograph showing destabilization of pyroxene into brownish amphibole. E) Occurrence of banded amphibolites. Note the foliation. F) Granoblastic heterogranular texture. Quartz is rounded. Stocky and subhedral plagioclase crystals. G) LPNA micrograph showing a pile of biotite flake. H) LPA micrograph : Geochemistry and 40ar/39ar Geochronology of Amphibolites from Banefo-Mvoutsaha Area, Central Domain of the Pan-African Fold Belt in Cameroon : Science and Education Publishing

Figure 4. Photographs and micrographs of Banefo-Mvoutsaha amphibolites. A) Occurrence of massive amphibolites interbedded with migmatitic gneisses and garnet-bearing gneisses. B) heterogranular granolepidoblastic texture. Noted the orientation of the minerals and the presence of amphibole-fish. C) LPNA micrograph showing oriented amphibole, quart, garnet and pyroxene. D) LPA micrograph showing destabilization of pyroxene into brownish amphibole. E) Occurrence of banded amphibolites. Note the foliation. F) Granoblastic heterogranular texture. Quartz is rounded. Stocky and subhedral plagioclase crystals. G) LPNA micrograph showing a pile of biotite flake. H) LPA micrograph

Journal of Geosciences and Geomatics. 2025, 13(2), 31-43 doi:10.12691/jgg-13-2-1