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handle: 10261/49316
(FR) Les objets lithiques découverts dans les gisements archéologiques ont en général été taillés en plusieurs matieres premières qui ont des caractéristiques spécifiques (composition, texture, grosseur du grain, dureté). Dans ce travail, nous présentons le cas des Yamana, chasseurs-cueilleurs fuégiens adaptés a l'exploitation des ressources maritimes, qui taillaient leurs instruments sur des roches ignées telles que les rhyolites, cinérites et ignimbrites. Nous avons étudié les relations entre le type d'usage et les différentes matières premières employées dans le site Tunel VII, à partir de l'analyse tracéologique et la caractérisation pétrographique de lames minces, ainsi que de la diffraction des rayons X. On relie les résultats de ces deux analyses pour savoir s'il existe un choix préalable de la matière premiere en fonctíon de l'activité a développer.
(EN) The lithic artifacts discovered in archaeological sites were generally knapped from different raw materials that show specific characteristics (e.g. composition, texture, thickness of grains, hardness). This study presents the case of the Yamana, Tierra del Fuego hunter-gatherers adapted to the utilisation of sea resources, who knapped their lithic artifacts from igneous rocks such as rhyolitc, cinerite and ignimbrite. We ha ve studied the relationship between the functions and the different raw materials used at the Yamana site of Tunel VII, by means of the microwear analysis and petrographic characterization of thin sections, and by mcans of X-ray diffraction. The results of these two analyses ha ve been put in relation, to know whether the choice of raw material could depend on the activity to which the tool was devoted.
Peer reviewed
Les objets lithiques, Fonctions, Matieres premieres, Yamana, Tierra del Fuego
Les objets lithiques, Fonctions, Matieres premieres, Yamana, Tierra del Fuego
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