PETROGRAPHIC AND MINERALOGIC CHARACTERIZATION OF THE BETSIAKA GROUP, NORTHERN MADAGASCAR - Rasaona, Imboarina Tsimanosika; Rakotondrazafy, Amos Fety Michel; Bauer, Wilfried; Andriamamonjy, Alfred Solofomampiely (International Journal of Advance Research and Innovative Ideas In Education, 2024)