Инд. авторы:	Sonin V.M., Zhimulev E.I, Chepurov A.A., Chepurov A.I., Pokhilenko N.P.
Заглавие:	Influence of the Sulfur Concentration in a Fe-S Melt on Diamond Preservation under P-T Conditions of the Earth's Mantle
Библ. ссылка:	Sonin V.M., Zhimulev E.I, Chepurov A.A., Chepurov A.I., Pokhilenko N.P. Influence of the Sulfur Concentration in a Fe-S Melt on Diamond Preservation under P-T Conditions of the Earth's Mantle // Doklady Earth Sciences. - 2018. - Vol.481. - Iss. 1. - P.922-924. - ISSN 1028-334X. - EISSN 1531-8354.
Идентиф-ры:	DOI: 10.1134/S1028334X1807019X; РИНЦ: 35719752; SCOPUS: 2-s2.0-85051212617; WoS: 000441005300021;
Реферат:	eng: The results of experiments on dissolution of diamond in a Fe melt with variable concentrations of S at high P-T parameters are presented. It is established that the maximal degree of diamond dissolution occurs at a sulfur concentration of 15 wt %. With decreasing or increasing S content, dissolution of diamond slows down and almost does not occur during the period of the experiment (60 min), when the "eutectic" composition is gained. In contrast to a pure Fe melt, the presence of S decreases the carbon solubility and, therefore, reduces the aggressiveness of metal melt in relation to diamonds, thus, stimulating their preservation in the Earth's mantle, especially if the concentration of S exceeds that in the "eutectic" composition.
Ключевые слова:	CRYSTALLIZATION; GPA; PRESSURE; SYSTEM; PARAMETERS; STABILITY;
Издано:	2018
Физ. хар-ка:	с.922-924
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