LE GUIRRIEC, Julien; ALCAINA-MATEOS, Jonàs; BOUSQUET, Bruno; LE BOURDONNEC, François-Xavier; LE BOURDONNEC, François-Xavier; SÁNCHEZ DE LA TORRE, Marta

doi:10.1016/j.chemolab.2025.105411

Métadonnées

Afficher la notice complète

Licence d’utilisation du document

LE GUIRRIEC, Julien
Universitat de Barcelona [UB]

ALCAINA-MATEOS, Jonàs
Universitat de Barcelona [UB]

BOUSQUET, Bruno
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

Langue

Article de revue

Ce document a été publié dans

Chemometrics and Intelligent Laboratory Systems. 2025-08, vol. 263, p. 105411

Elsevier

Résumé en anglais

The sourcing of lithic artefacts, and in particular chert, is a key proxy for archaeologist to better understand hunter-gatherer populations. The heterogeneous structure of chert samples, low trace element content, and variability of outcrops make the geochemical characterisation a methodological challenge. Laser Induced Breakdown Spectroscopy (LIBS) can overcome the issues of variability by enabling fast and low-cost and nearly non-destructive analysis of samples. This paper presents a protocol for chert sourcing using LIBS, by comparing several supervised classification models and signal pre-processing with two different approaches: a selection of features or the use of broadband spectra, with an example application on marine flysch cherts from the central Pyrenes (France) presenting similar micropaleontological and textural features.< Réduire

URI

https://oskar-bordeaux.fr/handle/20.500.12278/206657

DOI

http://dx.doi.org/10.1016/j.chemolab.2025.105411

Projet Européen

Spectroscopy and Geochemistry of chert. Reconstructing human mobility in the Pyrenees from the first Modern Humans to the last Pleistocene hunter-gatherers

Origine

Importé de hal

Unités de recherche

Archéosciences Bordeaux - UMR 6034