Du volcanisme acide d'Argentré-du-Plessis (Domaine centre-armoricain)

Abstract : Some isolated pieces of volcanites and microconglomerates of hectometric scale crop out at Argentré-du-Plessis,South of Laval's synclinorium.They are attributed to Tournaisian (Huisserie formation).This significant volcanism was fed by veins found in the laté devonian(?) granite of Pertre,which was already visible at that time.This attests highly intensive erosion. Mots clefs: Massif Armoricain-Tournaisien-volcanisme rhyolitique-filon d'alimentat­ ion.
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Jean-Alix Barrat. Du volcanisme acide d'Argentré-du-Plessis (Domaine centre-armoricain) . Cahiers géologiques , 1984, 104, pp.717-721. ⟨insu-01580057⟩

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