Caractérisation thermique de foyers de l'âge du Bronze de la grotte des Fraux (Dordogne)

Abstract : The Les Fraux cave (Dordogne, France) was occupied during the Bronze Age. It contained numerous hearth features. The questions related to the function of the cave and more particularly of the hearth features involved a multidisciplinary study of these remains. The aim of this paper is to present the methods applied for the study of the hearths. The analysis combined thermoluminescence (TL) of the quartz grains and magnetic susceptibility principally registered by the iron oxides contained in the sediments (whether heated or not). For each sample, the TL permits to obtain the corresponding temperature (palaeotemperature) by comparison between the TL curves of the samples and those of the thermal references. The relationship established between the palaeotemperature and the magnetic susceptibility allows converting magnetic susceptibility to palaeotemperatures reached by the sediment on a larger surface. This permits to characterize the intensity of heat attained in these hearths and to contribute to the determination of the function of this site through the comparison with experimental fires
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  • HAL Id : hal-00914028, version 1

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Aurélie Brodard, Pierre Guibert, Francois Leveque, Vivien Mathé, Laurent Carozza, et al.. Caractérisation thermique de foyers de l'âge du Bronze de la grotte des Fraux (Dordogne). Caractérisation thermique de foyers de l'âge du Bronze de la grotte des Fraux (Dordogne), Sep 2010, Saint-Georges-de-Didonne/Royan, France. pp.475-482. ⟨hal-00914028⟩

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