Инд. авторы:	Ponomarchuk V.A., Dobretsov N.L., Lazareva E.V., Zhmodik S.M., Karmanov N.S., Tolstov A.V., Pyryaev A.N
Заглавие:	Evidence of Microbial-Induced Mineralization in Rocks of the Tomtor Carbonatite Complex (Arctic Siberia)
Библ. ссылка:	Ponomarchuk V.A., Dobretsov N.L., Lazareva E.V., Zhmodik S.M., Karmanov N.S., Tolstov A.V., Pyryaev A.N Evidence of Microbial-Induced Mineralization in Rocks of the Tomtor Carbonatite Complex (Arctic Siberia) // Doklady Earth Sciences. - 2020. - Vol.490. - Iss. 2. - P.76-80. - ISSN 1028-334X. - EISSN 1531-8354.
Внешние системы:	DOI: 10.1134/S1028334X20020117; SCOPUS: 2-s2.0-85084917670; WoS: 000530808300007;
Реферат:	eng: Abstract: Carbonates of the Tomtor complex of ultramafic alkaline rocks and carbonatites (the northern part of the Republic of Sakha Yakutia) are distinguished by a wide range of carbon isotopic composition δ13C from +2 to –59.9‰. The geological position, localization patterns, mineral and chemical compositions and the relationship with REE mineralization of samples with values of δ13C carbonates from –25 to –59‰ are characterized. The formation of abnormally low δ13C in carbonates is determined by the biogenic oxidation of methane from δ13Cmet to –70‰. © 2020, Pleiades Publishing, Ltd.
Ключевые слова:	REE deposits; the Tomtor carbonatite complex; weathering crust of carbonatites; Alkalinity; Carbonates; Arctic siberia; Carbon isotopic composition; Carbonatites; Localization patterns; Mineral and chemical compositions; Oxidation of methane; Siberia; ultramafic rock; biogenic processes; oxidation; mineralization; methane; isotopic composition; igneous geochemistry; carbonatite; carbonate; carbon isotope; alkaline rock; Mineralogy; Yakutia; Ultramafic-alkaline rocks; rare earth element; carbon isotopes;
Издано:	2020
Физ. характеристика:	с.76-80