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Metamorphism and Tectonics in Southern Madagascar: An Overview |
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| Authors: | JM Lardeaux JE Martelat C Nicollet E Pili R Rakotondrazafy H Cardon |
| Institution: | aLaboratoire de Pétrologie et Tectonique, UMR 5570, Université Lyon 1 et ENS lyon, 43 Bd du 11 Novembre, 69622 Villeurbanne, France;bLaboratoire de Géologie, UMR 6224, Université Clermont II, 5 Rue Kessler, 63038 Clermont-Ferrand, France;cLaboratoire de Pétrologie, Université d' Antananarivo, BP 906, Madagascar |
| Abstract: | The scope of this paper is to briefly summarize the general tectonic pattern and the metamorphic evolution of the continental crust from southern Madagascar. After a presentation of the main geophysical features of the Malagasy crust, the brittle and the ductile strain patterns are established at a crustal scale. The Pan-African metamorphic zonation is discussed and interpreted through a tectonic model related to a transpressive regime. |
| Keywords: | Metamorphism strain pattern tectonics southern Madagascar |
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