Titre : Carbonated concretions from the Gallo-Roman aqueducts of Villenoy (Seine-et-Marne, France) and the Suippe at Reims (Marne, France): petrographic study and questioning the origin of the recorded sequences Auteurs : Gilles FRONTEAU, David COUTURIER, Yoann RABASTÉ, Revue : Archaeology, Society and Environment Numéro : Issue 1 Volume : 1 Date : 2023/03/14 DOI : 10.21494/ISTE.OP.2023.0945 ISSN : 2752-4507 Résumé : The recent archaeological study of two Roman aqueducts located in northern Gaul at Villenoy near Meaux (Seine-et-Marne) and Reims (Marne) was accompanied by a macroscopic and microscopic analysis of the carbonate concretions located on the sidewalls of the water channel. The sequencing of these concretions, although not very thick, allows us to retrace parts of the history of the aqueducts. For the aqueduct of Villenoy, the petrographic study confirms the chronological succession of two major phases and two types of operating modes. In the case of the aqueduct of Reims, it forces us to question the very short time recorded in the preserved concretions. Éditeur : ISTE OpenScience