Alkali Rhyolites in the Pechalninskii Ore Field (Northeastern Russia): A Potential Large-Volume Source of Heavy Rare-Earth Elements

Trachyrhyolite and comendite of the Pechalninskii ore field contain high potentially commercial concentrations of a number of rare metals and REEs. The enrichment coefficients vary from several (Zn, Ga, and LREEs) to tens (Be, Y, Zr, Nb, Rb, and HREEs) of times. The REE distribution is indicative of...

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Bibliographic Details
Published inDoklady earth sciences Vol. 510; no. 1; pp. 276 - 280
Main Authors Volkov, A. V., Galyamov, A. L., Murashov, K. Yu
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.09.2023
Springer
Springer Nature B.V
Subjects
Anomalies
Coefficients
Comparative analysis
Earth and Environmental Science
Earth Sciences
Metal concentrations
Metallogeny
Metals
Ore deposits
Rare earth elements
Rare earth metals
Rhyolites
Television sets
Volcanic ash, tuff, etc
Volcanic rocks
Zinc
Zirconium
Pechalninskii ore field
rare metals
Northeastern Russia
trachyrhyolite
comendite
and REEs
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Summary:Trachyrhyolite and comendite of the Pechalninskii ore field contain high potentially commercial concentrations of a number of rare metals and REEs. The enrichment coefficients vary from several (Zn, Ga, and LREEs) to tens (Be, Y, Zr, Nb, Rb, and HREEs) of times. The REE distribution is indicative of uniform enrichment in HREEs relative to LREEs at (La/Yb) N in the range of 0.16–1.01. All samples are distinguished by highly negative Eu anomalies with Eu/Eu* = 0.13. Based on a comparative analysis with similar world-known fields in alkali volcanic rocks, the Pechalninskii ore field could become an unconventional large-volume HREE source.
ISSN:1028-334X
1531-8354
DOI:10.1134/S1028334X23600111