@ARTICLE{10.21494/ISTE.OP.2023.0944, TITLE={Origins, development and evidence of cleaning of the limestone concretions during the use of the Gallo-Roman aqueduct of Divona-Cahors (Lot)}, AUTHOR={Didier Rigal, Cees W. Passchier, Gül Sürmelihindi, }, JOURNAL={Archaeology, Society and Environment}, VOLUME={1}, NUMBER={Issue 1}, YEAR={2023}, URL={https://www.openscience.fr/Origins-development-and-evidence-of-cleaning-of-the-limestone-concretions}, DOI={10.21494/ISTE.OP.2023.0944}, ISSN={2752-4507}, ABSTRACT={The archaeological excavations carried out on the aqueduct that supplied the Gallo-Roman city of Cahors (Divona) have discovered sections partially filled with carbonate deposits. These deposits present a laminated facies and variations in thickness along the way of the aqueduct. The recent study of a sequence of deposits 28 cm thick presented here demonstrates the ancient maintenance of the hydraulic structure by identifying anthropic traces of cleaning, sometimes followed by re-capping with hydraulic mortar, in the sedimentary sequences.}}