The earthen bonding in the stone walls of a number of vernacular buildings encountered in the crystalline Vosges mountains and limestone plains of Lorraine and Mâconnais ; LE LIANT EN TERRE DES MURS EN MOELLONS DANS L’HABITAT VERNACULAIRE.Exemples des Vosges cristallines et des plaines calcaires de Lorraine et du Mâconnais

National audience ; Works about traditional vernacular housing focus mainly on the lime-based mortars and renderings used in elite urban, religious buildings or castles. It rarely mentions the earthen bonding material in stone walls. Through some sedimentary observations carried out with the naked eye and in thin sections, this paper sets out to study the earthen bonding used in various stone walls in traditional and archaeological buildings and to compare them with natural sediments from the vicinity. If there is no doubt about the integration of the rural habitat in the geological landscape with regard to the stones in buildings, this study corroborates the strictly local origin of earthen bonding when used. However, economic and energy constraints (extraction, transport) do not override the need for the best possible quality material: for example, the organic topsoil available on the spot will be left untouched.At the end of the day, the study of the earthen bonding material used over several centuries for extending or repairing old buildings should provide a new vision of the way these are rooted in the landscape, let alone of the evolution of their techniques, prices and the uses of buildings and the status of their occupants.While being ecological (before the term existed), locally produced, non polluting, energy-saving and ever-reusable, the earth used for bonding walls of rough-cut stones is still a subject to explore. ; L’étude du liant en terre de murs en moellons est très peu mentionnée dans les travaux sur l’habitat vernaculaire traditionnel qui font généralement la part belle aux mortiers et enduits à base de chaux, abondant dans le bâti élitaire urbain, religieux ou castral. Loin d’être exhaustif, cet article propose, au travers d’observations sédimentaires effectuées à l’œil nu et en lames minces, l’étude de liants issus de divers bâtis traditionnels et archéologiques et leur comparaison avec des sédiments naturels alentours. Si l’ancrage fort de l’habitat rural dans le paysage géologique ne fait ...