Variability and sampling strategy of cave wall concretion: Case study of the moonmilk found in Leye Cave (Dordogne)
MAURAN, Guilhem
Histoire naturelle de l'Homme préhistorique [HNHP]
IRAMAT-Centre de recherche en physique appliquée à l’archéologie [IRAMAT-CRP2A]
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Histoire naturelle de l'Homme préhistorique [HNHP]
IRAMAT-Centre de recherche en physique appliquée à l’archéologie [IRAMAT-CRP2A]
MAURAN, Guilhem
Histoire naturelle de l'Homme préhistorique [HNHP]
IRAMAT-Centre de recherche en physique appliquée à l’archéologie [IRAMAT-CRP2A]
< Réduire
Histoire naturelle de l'Homme préhistorique [HNHP]
IRAMAT-Centre de recherche en physique appliquée à l’archéologie [IRAMAT-CRP2A]
Langue
en
Article de revue
Ce document a été publié dans
Archaeometry. 2019, vol. 61, n° 2, p. 327-341
Wiley
Résumé en anglais
Cave Art is a fragile testimony of past humans societies and the development of modern behaviours. In limestone caves, moonmilk commonly endanger the artworks. It is a calcite-deposit known to present a large variability ...Lire la suite >
Cave Art is a fragile testimony of past humans societies and the development of modern behaviours. In limestone caves, moonmilk commonly endanger the artworks. It is a calcite-deposit known to present a large variability of chemical composition and morphological structures, hosting numerous microbial communities. The possibility to characterize this deposit on the field would help to get a better understanding of the cave behaviour and set up proper conservation measures. The present study analyses the variability of a moonmilk strip of metric size in the Leye Cave. This cave located in the Vézère valley (Dordogne, France) is not ornate, and has been selected to become a laboratory cave in which in-situ observations and micro-sampling can be carried out, before performing them into cavities hosting parietal artworks. SEM observations of twenty-four samples allowed investigating, for the first time, the variability of the moonmilk deposit over a same wall of few meters dimension. Our observations highlight low variability of moonmilk at the microscopic scale regarding the chemical composition and the morphological structures despite significant macroscopic diversity, thus providing insights to optimize the sampling strategy of moonmilk in ornate caves.< Réduire
Mots clés en anglais
Cave Art
Vézère Valley
Calcite
Moonmilk
SEM
Sampling strategy
Origine
Importé de halUnités de recherche