Combined in situ XRF–LIBS analyses as a novel method to determine the provenance of central Mediterranean obsidians
dc.contributor.author | Costantini, Ilaria | |
dc.contributor.author | Veneranda, Marco | |
dc.contributor.author | Prieto Taboada, Nagore | |
dc.contributor.author | De Francesco, Anna Maria | |
dc.contributor.author | Castro Ortiz de Pinedo, Kepa | |
dc.contributor.author | Madariaga Mota, Juan Manuel | |
dc.contributor.author | Arana Momoitio, Gorka | |
dc.date.accessioned | 2023-12-21T18:14:58Z | |
dc.date.available | 2023-12-21T18:14:58Z | |
dc.date.issued | 2023 | |
dc.identifier.citation | The European Physical Journal Plus 138 : (2023) // Article ID 603 | es_ES |
dc.identifier.issn | 2190-5444 | |
dc.identifier.uri | http://hdl.handle.net/10810/63494 | |
dc.description.abstract | This work presents a new calibration method for determining the provenance of obsidian artefacts based on the combined use of XRF and laser-induced breakdown spectroscopy (LIBS). At first, obsidian samples collected from the main Mediterranean sources were characterized using portable XRF and LIBS systems. After data treatment, elemental information was used to carry out principal component analysis (PCA) for each technique. Rb, Sr, Zr, Y and Fe elements, detected by using XRF, were found to be the key parameters enabling obsidians discrimination. Likewise, LIBS data helped differentiating the analysed patterns by the intensity of their main elemental components (Ca, Al, Mg and K). After selecting the key parameters detected by each technique, a new data matrix combining XRF and LIBS data was finally built. According to PCA results, the discrimination of Mediterranean sources based on combined XRF–LIBS data ensured a higher reliability over mono-analytical models, by increasing the Euclidean distance between sources projections over three-dimensional principal components plots. Knowing that the representativeness of elemental data could be compromised by the presence of superficial degradation products or deposition patinas, a shot-to-shot comparison of in-depth LIBS analyses is finally proposed as a method to disclose whether the spot under analysis was superficially contaminated or altered. Thus, the proposed strategy based on the combined use of portable XRF and LIBS spectrometers could be particularly useful for the in situ analysis of obsidian artefacts that underwent superficial alteration or could be covered by patina products. | es_ES |
dc.description.sponsorship | This work has been financially supported by the DEMORA project (Grant No. PID2020-113391GB-I00), funded by the Spanish Agency for Research (through the Spanish Ministry of Science and Innovation (Grant No. BIA2017-870´63-P), MICINN, and the European Regional Development Fund (Grant No. BIA2017-870´63-P), FEDER). I. Costantini gratefully acknowledges to the UPV/EHU for her postdoctoral contract. Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Springer Nature | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/PID2020-113391GB-I00 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.title | Combined in situ XRF–LIBS analyses as a novel method to determine the provenance of central Mediterranean obsidians | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | © The Author(s) 2023. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. | es_ES |
dc.rights.holder | Atribución 3.0 España | * |
dc.relation.publisherversion | https://link.springer.com/article/10.1140/epjp/s13360-023-04218-4 | es_ES |
dc.identifier.doi | 10.1140/epjp/s13360-023-04218-4 | |
dc.departamentoes | Química analítica | es_ES |
dc.departamentoeu | Kimika analitikoa | es_ES |
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Except where otherwise noted, this item's license is described as © The Author(s) 2023. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.