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Characterizing the chemical composition of red coloring matter samples from the Altamira cave using synchrotron µXRF imaging
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Characterizing the chemical composition of red coloring matter samples from the Altamira cave using synchrotron µXRF imaging
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Journal Article
Characterizing the chemical composition of red coloring matter samples from the Altamira cave using synchrotron µXRF imaging
2024
Overview
The chemical in situ study of red coloring matter from Paleolithic cave art is challenging because the same trace elements can be present both in the matter and in the calcitic support, and the two present a heterogeneous composition. In this study, thirteen red iron oxide-based coloring matter samples obtained at drip points coming from eight locations within the
Techo de los Polícromos
, Altamira cave (Spain), have been analyzed by highly sensitive synchrotron-induced micro-X-ray fluorescence (SR-µXRF). Our analyses improved the characterization of red Paleolithic pigments by establishing characteristic trace element patterns, additionally facilitating a comparison of the distinct representations within the cave. Furthermore, new differentiation criteria between the composition of the calcitic walls and that of the red coloring matter could be established, helping to improve future non-invasive analyses.
Publisher
Springer Berlin Heidelberg,Springer Nature B.V,Springer Verlag
Subject
/ Cave art
/ Caves
/ Characterization and Evaluation of Materials
/ Coloring
/ Humanities and Social Sciences
/ Machines
/ Optical and Electronic Materials
/ Physics
/ S.I.: SR2A - Synchrotron radiation and neutrons in Art and Archaeology 2023
/ SR2A - Synchrotron radiation and neutrons in Art and Archaeology 2023
