Affiliation: | aDepartment of Earth Sciences, BP 906, Antananarivo University, Antananarivo 101, Madagascar bLaboratoire des Mécanismes et Transferts en Géologie (LMTG), UMR 5563- University Toulouse 3 - CNRS - IRD, OMP- 14 avenue Edouard Belin, 31400 Toulouse, France cLMTG- UMR 5563- CNRS - IRD, and CRPG/CNRS-UPR 2300, BP 20, 54501 Vandoeuvre-lès-Nancy, France |