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Les rapports entre Vaison-la-Romaine et l'Ouvèze (Vème s. av. J.-C. - XXIème s. ap. J.-C.)

Abstract : Since the creation of the town of Vaison, its site has been oscillating on both sides of the Ouvèze river. During the Vth century B.C., it is occupying the left bank. Since the Roman conquest (IInd century B.C.), the site has been moving to the right bank. It stayed on this bank up to the XIIth century A.D. went the Comtes de Toulouse castle has been built on the left bank. A castral town is then organized at its foot and the abandonment of the right bank is complete. The right bank is again urbanized mainly during the XIXth and XXth centuries and the castral town then becomes marginal. This exceptional oscillation of an urban site is due to several causes that could have interfere and succeed along the time. One of them is constituted by the Ouvèze dynamics. We can show, for example, that the intermediate flow channel moved towards the right bank during Late Antiquité. Sections show the continuation of aggradation by about 1 m of flood silts since the building of the catheral that has been flooded on 1992 september 22. This exceptional flood has confirmed that the cathedral is located in the flood plain and that aggradation is going on in this flood plain.
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Contributor : Jean-Louis Ballais <>
Submitted on : Monday, July 31, 2017 - 4:38:25 PM
Last modification on : Wednesday, August 26, 2020 - 3:30:53 AM

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  • HAL Id : hal-01570793, version 1

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Jean-Louis Ballais. Les rapports entre Vaison-la-Romaine et l'Ouvèze (Vème s. av. J.-C. - XXIème s. ap. J.-C.). OL' MAN RIVER - Geo-arachaeological aspects of rivers and river plains, Sep 2006, Gand, Belgique. pp.37-52. ⟨hal-01570793⟩

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