{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1363951795083894784.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1038/s41467-020-17801-5"}},{"identifier":{"@type":"URI","@value":"https://www.nature.com/articles/s41467-020-17801-5.pdf"}},{"identifier":{"@type":"URI","@value":"https://www.nature.com/articles/s41467-020-17801-5"}}],"dc:title":[{"@value":"Adsorption of rare earth elements in regolith-hosted clay deposits"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>Abstract</jats:title><jats:p>Global resources of heavy Rare Earth Elements (REE) are dominantly sourced from Chinese regolith-hosted ion-adsorption deposits in which the REE are inferred to be weakly adsorbed onto clay minerals. Similar deposits elsewhere might provide alternative supply for these high-tech metals, but the adsorption mechanisms remain unclear and the adsorbed state of REE to clays has never been demonstrated in situ. This study compares the mineralogy and speciation of REE in economic weathering profiles from China to prospective regoliths developed on peralkaline rocks from Madagascar. We use synchrotron X-ray absorption spectroscopy to study the distribution and local bonding environment of Y and Nd, as proxies for heavy and light REE, in the deposits. Our results show that REE are truly adsorbed as easily leachable 8- to 9-coordinated outer-sphere hydrated complexes, dominantly onto kaolinite. Hence, at the atomic level, the Malagasy clays are genuine mineralogical analogues to those currently exploited in China.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1383951795083894794","@type":"Researcher","foaf:name":[{"@value":"Anouk M. Borst"}]},{"@id":"https://cir.nii.ac.jp/crid/1383951795083894793","@type":"Researcher","foaf:name":[{"@value":"Martin P. Smith"}]},{"@id":"https://cir.nii.ac.jp/crid/1383951795083894790","@type":"Researcher","foaf:name":[{"@value":"Adrian A. Finch"}]},{"@id":"https://cir.nii.ac.jp/crid/1383951795083894788","@type":"Researcher","foaf:name":[{"@value":"Guillaume Estrade"}]},{"@id":"https://cir.nii.ac.jp/crid/1383951795083894791","@type":"Researcher","foaf:name":[{"@value":"Cristina Villanova-de-Benavent"}]},{"@id":"https://cir.nii.ac.jp/crid/1383951795083894792","@type":"Researcher","foaf:name":[{"@value":"Peter Nason"}]},{"@id":"https://cir.nii.ac.jp/crid/1383951795083894786","@type":"Researcher","foaf:name":[{"@value":"Eva Marquis"}]},{"@id":"https://cir.nii.ac.jp/crid/1383951795083894787","@type":"Researcher","foaf:name":[{"@value":"Nicola J. Horsburgh"}]},{"@id":"https://cir.nii.ac.jp/crid/1383951795083894784","@type":"Researcher","foaf:name":[{"@value":"Kathryn M. Goodenough"}]},{"@id":"https://cir.nii.ac.jp/crid/1383951795083894789","@type":"Researcher","foaf:name":[{"@value":"Cheng Xu"}]},{"@id":"https://cir.nii.ac.jp/crid/1383951795083894795","@type":"Researcher","foaf:name":[{"@value":"Jindřich Kynický"}]},{"@id":"https://cir.nii.ac.jp/crid/1383951795083894785","@type":"Researcher","foaf:name":[{"@value":"Kalotina Geraki"}]}],"publication":{"publicationIdentifier":[{"@type":"EISSN","@value":"20411723"}],"prism:publicationName":[{"@value":"Nature Communications"}],"dc:publisher":[{"@value":"Springer Science and Business Media LLC"}],"prism:publicationDate":"2020-09-01","prism:volume":"11","prism:number":"1","prism:startingPage":"4386"},"reviewed":"false","dc:rights":["https://creativecommons.org/licenses/by/4.0","https://creativecommons.org/licenses/by/4.0"],"url":[{"@id":"https://www.nature.com/articles/s41467-020-17801-5.pdf"},{"@id":"https://www.nature.com/articles/s41467-020-17801-5"}],"createdAt":"2020-09-01","modifiedAt":"2022-12-06","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360009142801420160","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Microscopic analyses of weathered granite in ion-adsorption rare earth deposit of Jianxi Province, China"}]},{"@id":"https://cir.nii.ac.jp/crid/1360302865738606976","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Development of High-Energy µ-X-ray Fluorescence and X-ray Absorption Fine Structure for the Distribution and Speciation of Rare Earth Elements in Natural Samples"}]},{"@id":"https://cir.nii.ac.jp/crid/1360302866846702848","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Distribution of rare earth elements (REEs) in supergene environment around a typical ion adsorption–type REE deposit"}]},{"@id":"https://cir.nii.ac.jp/crid/1360302868275681152","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Interpretation of vertical migration and enrichment processes of rare earth elements (REEs) in ion-adsorption-type mineralization in Japan based on REE speciation analyses"}]},{"@id":"https://cir.nii.ac.jp/crid/1360580229809443840","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"The cerium isotope fingerprints of redox fluctuation in bauxites"}]},{"@id":"https://cir.nii.ac.jp/crid/1360580232153554944","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Molecular-level understanding of metal ion retention in clay-rich materials"}]},{"@id":"https://cir.nii.ac.jp/crid/1360580232394656256","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"HFSE and REE mineralization at Machinga prospect in the Chilwa alkaline province, southern Malawi"}]},{"@id":"https://cir.nii.ac.jp/crid/1360584341821731584","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Molecular geochemistry of radium: A key to understanding cation adsorption reaction on clay minerals"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1038/s41467-020-17801-5"},{"@type":"CROSSREF","@value":"10.1038/s41598-020-76981-8_references_DOI_RdGj2vr5HZakDJL69NCgjnKKHI5"},{"@type":"CROSSREF","@value":"10.3390/min13060746_references_DOI_RdGj2vr5HZakDJL69NCgjnKKHI5"},{"@type":"CROSSREF","@value":"10.1016/j.oregeorev.2023.105721_references_DOI_RdGj2vr5HZakDJL69NCgjnKKHI5"},{"@type":"CROSSREF","@value":"10.1016/j.epsl.2022.117962_references_DOI_RdGj2vr5HZakDJL69NCgjnKKHI5"},{"@type":"CROSSREF","@value":"10.1038/s43017-022-00301-z_references_DOI_RdGj2vr5HZakDJL69NCgjnKKHI5"},{"@type":"CROSSREF","@value":"10.1016/j.jafrearsci.2022.104791_references_DOI_RdGj2vr5HZakDJL69NCgjnKKHI5"},{"@type":"CROSSREF","@value":"10.1016/j.jcis.2024.01.120_references_DOI_RdGj2vr5HZakDJL69NCgjnKKHI5"},{"@type":"CROSSREF","@value":"10.1016/j.chemgeo.2024.122431_references_DOI_RdGj2vr5HZakDJL69NCgjnKKHI5"}]}