Trachyte from Vakinankaratra, Madagascar


Madagascar
Vakinankaratra Antsirabe I District ⓘ Sahatsio Bridge	Lacroix, Alfred (1922) Minéralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. Augustin Challamel, Paris. p.1-624.
Betafo District Andrembesoa ⓘ Ambondrona Volcanic Field	Le Maitre, R. W. - Ed. (2002) Igneous Rocks - A Classification and Glossary of Terms (2nd ed.) Cambridge University Press. doi:10.1017/cbo9780511535581 Besaire, Henri (1972) Mise au point sur le volcanisme de l'Ankaizina (Madagascar) Comptes rendus de la Semaine géologique 1971. Madagascar, Comité National de Géologie p.35-38. Besaire, Henri (1971) Feuille 2. Antalaha. 1:500000. Carte géologigues Madagascar 1/500.000, Service Geologique de Madagascar. Jourde, G. (1963) Le Haut-Sambirano et les massifs du Tsaratanana et de l'Amborona a Madagascar. Annales géologiques du Service des mines, 33. 89-95
Faratsiho Faratsiho Commune ⓘ Unnamed Opal locality	Alsace, C. (1963) Etude Geologique et prospection de la feuille Faratsiho. Travaux du Bureau geologique nr 112, Service Geologique, Tananarive.

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