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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/231827
Supervised laser Induced breakdown spectroscopy for prehistoric chert provenance: a methodological framework
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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.
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LE GUIRRIEC, Julien, et al. Supervised laser Induced breakdown spectroscopy for prehistoric chert provenance: a methodological framework. Chemometrics and Intelligent Laboratory Systems. 2025. Vol. 263, num. 105411. ISSN 0169-7439. [consulted: 5 of October of 2026]. Available at: https://hdl.handle.net/2445/231827