A new multimethod approach for dating cave calcite: application to the cave of Trou du Renard (Soyons, France)
DAPOIGNY, Arnaud
Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
Géochrononologie Traceurs Archéométrie [GEOTRAC]
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Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
Géochrononologie Traceurs Archéométrie [GEOTRAC]
DAPOIGNY, Arnaud
Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
Géochrononologie Traceurs Archéométrie [GEOTRAC]
Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
Géochrononologie Traceurs Archéométrie [GEOTRAC]
PONS-BRANCHU, Edwige
Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
Géochrononologie Traceurs Archéométrie [GEOTRAC]
Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
Géochrononologie Traceurs Archéométrie [GEOTRAC]
VALLADAS, Hélène
Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
Géochrononologie Traceurs Archéométrie [GEOTRAC]
< Réduire
Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
Géochrononologie Traceurs Archéométrie [GEOTRAC]
Langue
en
Article de revue
Ce document a été publié dans
Geochronology. 2024-06-13, vol. 6, n° 2, p. 247 - 263
Copernicus Publications
Résumé en anglais
Abstract. A multimethod approach aimed at characterizing carbonate parietal deposits and at proposing a chronology for these carbonate crusts is described. Dating was performed by radiometric methods (C-14 for recent samples ...Lire la suite >
Abstract. A multimethod approach aimed at characterizing carbonate parietal deposits and at proposing a chronology for these carbonate crusts is described. Dating was performed by radiometric methods (C-14 for recent samples and U series) on samples that had been characterized beforehand using optical and cathodoluminescence microscopy and Fourier transform infrared microspectroscopy. For the U series, high precision on U–Th ages was achieved using liquid phase multicollector inductively coupled plasma mass spectrometry (ICP-MS) applied to large samples, while laser ablation single collector inductively coupled plasma sector field mass spectrometry (ICP-SFMS) provided information on the reliability of the sampling with a high spatial resolution. This methodology, based on the combination of these two techniques reinforced by the information obtained by the calcite characterization methods, was applied to carbonate deposits from the cave of Trou du Renard (Soyons, France). The ages obtained with the two U–Th dating techniques are comparable and illustrate that different laminae were deposited at different rates in the samples. In the future, this procedure, based on the mineralogical and geochemical characterization of the samples and their dating by radiometric methods, will be applied to the layers of parietal carbonates deposited on Palaeolithic decorated walls. When the crystallization is slow, the U/Th dating method by imaging technique is of interest, as well as that by multicollector ICP-MS in liquid phase. The development of robust dating methods on very small quantities of material will make it possible to define the chronological framework of cave rock art.< Réduire
Mots clés
PANOPLY
Project ANR
Datations croisées uranium-thorium, uranium-protactinium et carbone-14 de carbonates secondaires en grottes : recherche de critères de validation des échantillons et des âges : Application à l'art pariétal - ANR-18-CE27-0004
Origine
Importé de halUnités de recherche