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La structure de la zone de collision hercynienne dans le Sud-Est du Massif armoricain est illustree par un profil sismique en ecoute longue de 70 km de long, acquis en septembre 2000. Le profil met en evidence une structure chevauchante a vergence nord, inconnue jusqu'a present, qui fait chevaucher, pendant le Carbonifere, le domaine de Champtoceaux sur le domaine Centre-Armoricain. Les deplacements...
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