Инд. авторы:	Bataleva Y.V., Palyanov Y.N., Borzdov Y.M., Zdrokov E.V., Novoselov I.D., Sobolev N.V.
Заглавие:	Formation of the Fe,Mg-Silicates, Fe-0, and Graphite (Diamond) Assemblage as a Result of Cohenite Oxidation under Lithospheric Mantle Conditions
Библ. ссылка:	Bataleva Y.V., Palyanov Y.N., Borzdov Y.M., Zdrokov E.V., Novoselov I.D., Sobolev N.V. Formation of the Fe,Mg-Silicates, Fe-0, and Graphite (Diamond) Assemblage as a Result of Cohenite Oxidation under Lithospheric Mantle Conditions // Doklady Earth Sciences. - 2018. - Vol.479. - Iss. 1. - P.335-338. - ISSN 1028-334X. - EISSN 1531-8354.
Идентиф-ры:	DOI: 10.1134/S1028334X18030017; SCOPUS: 2-s2.0-85063896904; WoS: 000430654500014;
Реферат:	eng: Experimental studies in the Fe3C-SiO2-MgO system (P = 6.3 GPa, T = 1100-1500A degrees C, t = 20-40 h) have been carried out. It has been established that carbide-oxide interaction resulted in the formation of Fe-orthopyroxene, graphite, wustite, and cohenite (1100 and 1200A degrees C), as well as a Fe-C-O melt (1300-1500A degrees C). The main processes occurring in the system at 1100 and 1200A degrees C are the oxidation of cohenite, the extraction of carbon from carbide, and the crystallization of metastable graphite, as well as the formation of ferrosilicates. At T 1300A degrees C, graphite crystallization and diamond growth occur as a result of the redox interaction of a predominantly metallic melt (Fe-C-O) with oxides and silicates. The carbide-oxide interaction studied can be considered as the basis for modeling a number of carbon-producing processes in the lithospheric mantle at fO(2) values near the iron-wustite buffer.
Ключевые слова:	INCLUSIONS; IRON CARBIDE; P-T PARAMETERS; CRYSTAL-GROWTH; CARBON;
Издано:	2018
Физ. хар-ка:	с.335-338