Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Structural and Morphological Features of the Participation of Microorganisms in the Formation of Nb–REE–Rich Ores of the Tomtor Field (Russia). / Dobretsov, N. L.; Zhmodik, S. M.; Lazareva, E. V. и др.
в: Doklady Earth Sciences, Том 496, № 2, 02.2021, стр. 135-138.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Structural and Morphological Features of the Participation of Microorganisms in the Formation of Nb–REE–Rich Ores of the Tomtor Field (Russia)
AU - Dobretsov, N. L.
AU - Zhmodik, S. M.
AU - Lazareva, E. V.
AU - Bryanskaya, A. V.
AU - Ponomarchuk, V. A.
AU - Saryg-ool, B. Yu
AU - Kirichenko, I. S.
AU - Tolstov, A. V.
AU - Karmanov, N. S.
N1 - Funding Information: This work was supported by the Russian Science Foundation, project no. 18-17-00120, and in part by the Ministry of Science and Higher Education of the Russian Federation, project no. 0259-2021-0010 (diagnostics of microorganisms). The analytical works were performed at the Center for Collective Use for Multielement and Isotopic Studies, Siberian Branch, Russian Academy of Sciences. Publisher Copyright: © 2021, Pleiades Publishing, Ltd. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/2
Y1 - 2021/2
N2 - Data indicating the important role of microorganisms in the redistribution of REEs in the weathering crust and the decisive role in the concentration of REEs during the formation of ores in the upper ore horizon of the Tomtor field are obtained. The uptake of REEs was carried out by the community of microorganisms, such as phototrophs, methanogens, methanotrophs, and proteobacteria, which form the basis of the microbiocenosis for this paleoecosystem. The isotopic composition of C carbonates in all samples studied with fossilized microorganisms corresponds to the biogenic one, and the isotopic composition δ18ОSMOW (from 7 to 20‰) indicates the endogenous (hydrothermal) and, to a lesser extent, exogenous nature of the solutions. The low (87Sr/86Sr)I values of carbonates (~0.7036–0.7042) exclude the participation of seawater.
AB - Data indicating the important role of microorganisms in the redistribution of REEs in the weathering crust and the decisive role in the concentration of REEs during the formation of ores in the upper ore horizon of the Tomtor field are obtained. The uptake of REEs was carried out by the community of microorganisms, such as phototrophs, methanogens, methanotrophs, and proteobacteria, which form the basis of the microbiocenosis for this paleoecosystem. The isotopic composition of C carbonates in all samples studied with fossilized microorganisms corresponds to the biogenic one, and the isotopic composition δ18ОSMOW (from 7 to 20‰) indicates the endogenous (hydrothermal) and, to a lesser extent, exogenous nature of the solutions. The low (87Sr/86Sr)I values of carbonates (~0.7036–0.7042) exclude the participation of seawater.
KW - carbonatites
KW - microorganisms
KW - Tomtor Nb–REE field
KW - weathering crust
UR - http://www.scopus.com/inward/record.url?scp=85102505991&partnerID=8YFLogxK
U2 - 10.1134/S1028334X21020057
DO - 10.1134/S1028334X21020057
M3 - Article
AN - SCOPUS:85102505991
VL - 496
SP - 135
EP - 138
JO - Doklady Earth Sciences
JF - Doklady Earth Sciences
SN - 1028-334X
IS - 2
ER -
ID: 28257227