{"id":787,"date":"2026-09-18T17:10:19","date_gmt":"2026-09-18T15:10:19","guid":{"rendered":"https:\/\/anr-cmio.gm.umontpellier.fr\/?p=787"},"modified":"2026-09-18T17:10:19","modified_gmt":"2026-09-18T15:10:19","slug":"paper-alert-integrated-libs-epma-and-multivariate-statistical-analysis-a-powerful-workflow-for-ge-bearing-mineral-characterization-and-high-tech-critical-metals-exploration","status":"publish","type":"post","link":"https:\/\/anr-cmio.gm.umontpellier.fr\/?p=787","title":{"rendered":"Paper alert: Integrated LIBS-EPMA and multivariate statistical analysis a powerful workflow for Ge-bearing mineral characterization and high-tech critical metals exploration"},"content":{"rendered":"

Comment d\u00e9tecter un m\u00e9tal critique concentr\u00e9 \u00e0 seulement quelques centaines de ppm dans un min\u00e9ral ?<\/p>\n

C’est pr\u00e9cis\u00e9ment le d\u00e9fi auquel nous avons cherch\u00e9 \u00e0 r\u00e9pondre dans notre dernier article, d\u00e9sormais publi\u00e9 dans Minerals.<\/p>\n

Le germanium (Ge) est un m\u00e9tal critique essentiel \u00e0 de nombreuses technologies de pointe, mais il est g\u00e9n\u00e9ralement pr\u00e9sent \u00e0 l’\u00e9tat de traces, ce qui rend sa d\u00e9tection et sa caract\u00e9risation particuli\u00e8rement complexes.<\/p>\n

Dans cette \u00e9tude, nous proposons une m\u00e9thodologie multi-\u00e9chelle combinant LIBS, EPMA et analyses statistiques multivari\u00e9es pour d\u00e9tecter, cartographier et quantifier le germanium dans des min\u00e9ralisations Pb-Zn de la mine historique des Malines (30). \ud83e\udea8<\/p>\n

Nos r\u00e9sultats montrent notamment que la distribution du germanium est contr\u00f4l\u00e9e par les conditions locales de croissance des min\u00e9raux plut\u00f4t que par leur composition globale.
\nCette approche ouvre de nouvelles perspectives pour cibler plus efficacement les enrichissements en m\u00e9taux critiques, avec un potentiel d’application \u00e0 d’autres \u00e9l\u00e9ments strat\u00e9giques comme le gallium ou l’indium en plus de proposer un workflow multi \u00e9chelle permettant de passer de plusieurs centim\u00e8tres carr\u00e9s au micron. \ud83d\udd0e<\/p>\n

Je suis particuli\u00e8rement heureux de voir ce travail aboutir, puisqu’il s’agit de mon premier article scientifique au laboratoire ISTerre – Institut des Sciences de la Terre<\/span><\/strong><\/a><\/span>.<\/p>\n

Un grand merci \u00e0 l’ensemble des co-auteurs pour leur confiance, leur expertise et cette collaboration qui a permis d’aboutir \u00e0 cette publication:<\/p>\n

Emilie Janots<\/span><\/strong><\/a><\/span> B\u00e9n\u00e9dicte Cenki-Tok, PhD<\/span><\/strong><\/a><\/span> Octave REIGNIER<\/span><\/strong><\/a><\/span> Dennis Lahond\u00e8s<\/span><\/strong><\/a><\/span> Etienne Le Goff<\/span><\/strong><\/a><\/span> Jeremie Melleton<\/span><\/strong><\/a><\/span> Valentina Batanova et Vincent Motto-Ros<\/p>\n

Je serai ravi d’\u00e9changer avec celles et ceux qui s’int\u00e9ressent aux m\u00e9taux critiques, \u00e0 l’exploration mini\u00e8re, \u00e0 la g\u00e9ochimie ou aux m\u00e9thodes analytiques appliqu\u00e9es aux g\u00e9osciences.<\/p>\n

#CriticalRawMaterials<\/strong><\/a><\/span> #CriticalMetals<\/strong><\/a><\/span> #Germanium<\/strong><\/a><\/span> #MineralExploration<\/strong><\/a><\/span> #EconomicGeology<\/strong><\/a><\/span> #Geochemistry<\/strong><\/a><\/span> #LIBS<\/strong><\/a><\/span> #EPMA<\/strong><\/a><\/span> #Mining<\/strong><\/a><\/span><\/span><\/p>\n

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How to cite:<\/em><\/p>\n

Afanassieff, N., Janots, E., Reignier O., Motto-Ros, V., Batanova, V., Lahond\u00e8s, D., Le Go\ufb00, E., Melleton, J. & Cenki, B. (2026). Integrated LIBS-EPMA and Multivariate Statistical Analysis for Ge-Bearing Mineral Characterization: A Tool for High-Tech Critical Metals Exploration. Minerals, 16, 685.<\/p>\n

https:\/\/doi.org\/10.3390\/min16070685<\/u><\/a><\/p>\n

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 <\/p>\n","protected":false},"excerpt":{"rendered":"

Comment d\u00e9tecter un m\u00e9tal critique concentr\u00e9 \u00e0 seulement quelques centaines de ppm dans un min\u00e9ral ? C’est pr\u00e9cis\u00e9ment le d\u00e9fi auquel nous avons cherch\u00e9 \u00e0 r\u00e9pondre dans notre dernier article, d\u00e9sormais publi\u00e9 dans Minerals. Le germanium (Ge) est un m\u00e9tal … Continuer la lecture →<\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":788,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12,7],"tags":[],"table_tags":[],"class_list":["post-787","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-publications"],"_links":{"self":[{"href":"https:\/\/anr-cmio.gm.umontpellier.fr\/index.php?rest_route=\/wp\/v2\/posts\/787","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/anr-cmio.gm.umontpellier.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/anr-cmio.gm.umontpellier.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/anr-cmio.gm.umontpellier.fr\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/anr-cmio.gm.umontpellier.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=787"}],"version-history":[{"count":1,"href":"https:\/\/anr-cmio.gm.umontpellier.fr\/index.php?rest_route=\/wp\/v2\/posts\/787\/revisions"}],"predecessor-version":[{"id":789,"href":"https:\/\/anr-cmio.gm.umontpellier.fr\/index.php?rest_route=\/wp\/v2\/posts\/787\/revisions\/789"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/anr-cmio.gm.umontpellier.fr\/index.php?rest_route=\/wp\/v2\/media\/788"}],"wp:attachment":[{"href":"https:\/\/anr-cmio.gm.umontpellier.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=787"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/anr-cmio.gm.umontpellier.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=787"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/anr-cmio.gm.umontpellier.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=787"},{"taxonomy":"table_tags","embeddable":true,"href":"https:\/\/anr-cmio.gm.umontpellier.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftable_tags&post=787"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}