Miora Harivony RAKOTONDRABE, Pdh student of University of Antananarivo - Polytechnic School of Antananarivo, Madagascar; Anoop V MOHANDAS, Geological Survey of India Training Institute, Hyderabad, India; Eddy Harilala RASOLOMANANANA, University of Antananarivo - Polytechnic School of Antananarivo, Madagascar