| Инд. авторы: | Bataleva Y.V., Palyanov Y.N., Borzdov Y.M., Bayukov O.A., Sobolev N.V. |
| Заглавие: | Experimental Modeling of C-0-Forming Processes Involving Cohenite and CO2-Fluid in a Silicate Mantle |
| Библ. ссылка: | Bataleva Y.V., Palyanov Y.N., Borzdov Y.M., Bayukov O.A., Sobolev N.V. Experimental Modeling of C-0-Forming Processes Involving Cohenite and CO2-Fluid in a Silicate Mantle // Doklady Earth Sciences. - 2018. - Vol.483. - Iss. 1. - P.1427-1430. - ISSN 1028-334X. - EISSN 1531-8354. |
| Внешние системы: | DOI: 10.1134/S1028334X18110016; SCOPUS: 2-s2.0-85058858773; WoS: 000453745300012; |
| Реферат: | eng: Experimental studies were performed in the Fe3C-SiO2-(Mg,Ca)CO3 system (6.3 GPa, 1100-1500 degrees C, 20-40 h). It is established that the carbide-oxide-carbonate interaction leads to the formation of ferrosilite, fayalite, graphite, and cohenite (1100 and 1200 degrees C), as well as a Fe-C melt (1300 degrees C). It is determined that the main processes in the system are decarbonation, redox-reactions of cohenite and a CO2-fluid, extraction of carbon from carbide, and crystallization of metastable graphite (+/- diamond growth), as well as the formation of ferriferous silicates. The interaction studied can be considered as a simplified model of the processes that occur during the subduction of oxidized crustal material to reduced mantle rocks.
|
| Ключевые слова: | IMPURITY; NITROGEN; PARAMETERS; INCLUSIONS; MECHANISMS; GRAPHITE; CARBON; IRON CARBIDE; DIAMOND FORMATION; GROWTH; |
| Издано: | 2018 |
| Физ. характеристика: | с.1427-1430 |