Provenance et utilisation de la pierre dans la basse vallée de la Loire (Ier siècle av. J.-C. - VIIIe siècle ap. J.-C.)

Abstract : The economy of the stone is a most interdisciplinary field of research which raises very diverse problems. The present study is at the crossroads of geology and archaeology. The point is not to begin a new architectural or stylistic study of the low valley of the Loire between the Roman conquest and the Carolingian period, nor to launch into a thorough survey of the techniques of extraction or cutting, but rather to look into the way the local mineral resources were exploited and to examine the importing network of exogenous materials. This work aims on the one hand at drawing up an inventory of the Gallo-Roman and Merovingian quarries, and on the other hand at characterizing the different rocks employed on the built facilities and a wide range of stone elements, then to try to identify their potential area of extraction, and finally to see if particular trends appear in the use of these rocks, according to spatial, temporal or architectural criteria. This work shows that the territories under investigation form, during the Antiquity and at the beginning of the Early Middle Ages, a relatively coherent economic group, due to their strategies of stone supply, strongly conditioned by the economic main line the Loire is. The discovery of sources of supply from Nivernais additionally allows to invalidate the idea according to which the limestone dressed stone used on the Basse-Loire necessarily came from Anjou or from Poitou-Charentes.
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Alexandre Polinski. Provenance et utilisation de la pierre dans la basse vallée de la Loire (Ier siècle av. J.-C. - VIIIe siècle ap. J.-C.). Archéologie et Préhistoire. Université de Nantes, 2012. Français. ⟨tel-02144772⟩

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