Adsorption of rare earth elements in regolith-hosted clay deposits
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F20%3A43918289" target="_blank" >RIV/62156489:43410/20:43918289 - isvavai.cz</a>
Alternative codes found
RIV/41601670:_____/20:N0000036
Result on the web
<a href="https://doi.org/10.1038/s41467-020-17801-5" target="_blank" >https://doi.org/10.1038/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>
Alternative languages
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 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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10504 - Mineralogy
Result continuities
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
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
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
1 September
Country of publishing house
GB - UNITED KINGDOM
Number of pages
15
Pages from-to
4386
UT code for WoS article
000569891500013
EID of the result in the Scopus database
2-s2.0-85090055421