Extraction et utilisation des granites en Armorique romaine : l’exemple de la carrière de Locuon en Ploërdut (Morbihan)

Yvan Maligorne 1 Jean-Yves Éveillard 1 Louis Chauris 1
1 CRBC Brest - Centre de recherche bretonne et celtique
UBO - Université de Brest, IBSHS - Institut Brestois des Sciences de l'Homme et de la Société, CRBC - Centre de recherche bretonne et celtique
Abstract : One of the main originalities of the sculpture and architecture of Roman Armorica lies in the extensive use of regional granites. For the time being, only a single ashlar quarry has been recognized in the area being studied: located at Locuon, Ploërdut (Morbihan), it widely supplied Vorgium/Carhaix, capital of the Osismi, with stone. The stone is a very light coloured granite, whitish and relatively soft ; two factors that may have determined its choice. It was quarried with vertical trenches cut with a special quarryman pick, called "escoude" in Southern France. The 27 km long route toward Vorgium used the Vannes-Carhaix road, in the immediate vicinity of which the quarry developed. Limited excavations that took place during summer 2000 allow the dating of the exploitation between the first half of the 1st century AD and the end of the 2nd century AD.
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Yvan Maligorne, Jean-Yves Éveillard, Louis Chauris. Extraction et utilisation des granites en Armorique romaine : l’exemple de la carrière de Locuon en Ploërdut (Morbihan). Gallia - Archéologie de la France antique, CNRS Éditions, 2002, Dossier : Carrières antiques de la Gaule, 59, pp.133-143. ⟨10.3406/galia.2002.3101⟩. ⟨hal-01912501⟩

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