Fig. 2

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Carte géologique de l’agglomération rennaise (extrait de la carte imprimée au 1/50 000, disponible sur https://infoterre.brgm.fr/) échelle donnée par la barre 1 km. Les intrusions magmatiques sont cerclées de jaune, tandis que les cercles rouges indiquent les formations superficielles.
Geological map of the Rennes conurbation (extract from the 1/50 000 printed map, available on https://infoterre.brgm.fr/) scale given by the 1 km bar. Magmatic intrusions are circled in yellow, while red circles indicate superficial geology.
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