Adsorption of rare earth elements in regolith-hosted clay deposits

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F41601670%3A_____%2F20%3AN0000036" target="_blank" >RIV/41601670:_____/20:N0000036 - isvavai.cz</a>

Alternative codes found

RIV/62156489:43410/20:43918289

Result on the web

<a href="https://www.nature.com/articles/s41467-020-17801-5" target="_blank" >https://www.nature.com/articles/s41467-020-17801-5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41467-020-17801-5" target="_blank" >10.1038/s41467-020-17801-5</a>

Result language

angličtina

Original language name

Adsorption of rare earth elements in regolith-hosted clay deposits

Original language description

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 depositselsewhere might provide alternative supply for these high-tech metals, but the adsorption mechanisms remainunclear and the adsorbed state of REE to clays has never been demonstrated in situ. This study compares themineralogy and speciation of REE in economic weathering profiles from China to prospective regoliths developed onperalkaline rocks from Madagascar. We use synchrotron X-ray absorption spectroscopy to study the distribution andlocal bonding environment of Y and Nd, as proxies for heavy and light REE, in the deposits. Our results show that REEare truly adsorbed as easily leachable 8- to 9-coordinated outer-sphere hydrated complexes, dominantly ontokaolinite. Hence, at the atomic level, the Malagasy clays are genuine mineralogical analogues to those currentlyexploited in China.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10505 - Geology

Project

<a href="/en/project/GX19-29124X" target="_blank" >GX19-29124X: EVOLUTION AND POST-EMPLACEMENT HISTORY OF CARBONATITES: IMPLICATIONS FOR THE MOBILITY AND CONCENTRATION OF CRITICAL METALS</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Nature Communications

ISSN

2041-1723

e-ISSN

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Volume of the periodical

11

Issue of the periodical within the volume

4386

Country of publishing house

GB - UNITED KINGDOM

Number of pages

15

Pages from-to

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UT code for WoS article

000569891500013

EID of the result in the Scopus database

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