Research output: Contribution to journal › Article › peer-review
Experimental Modeling of C0-Forming Processes Involving Cohenite and CO2-Fluid in a Silicate Mantle. / Bataleva, Yu V.; Palyanov, Yu N.; Borzdov, Yu M. et al.
In: Doklady Earth Sciences, Vol. 483, No. 1, 01.12.2018, p. 1427-1430.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Experimental Modeling of C0-Forming Processes Involving Cohenite and CO2-Fluid in a Silicate Mantle
AU - Bataleva, Yu V.
AU - Palyanov, Yu N.
AU - Borzdov, Yu M.
AU - Bayukov, O. A.
AU - Sobolev, N. V.
PY - 2018/12/1
Y1 - 2018/12/1
N2 - Abstract: Experimental studies were performed in the Fe3C–SiO2–(Mg,Ca)CO3 system (6.3 GPа, 1100–1500°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°С), as well as a Fe–C melt (1300°С). 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.
AB - Abstract: Experimental studies were performed in the Fe3C–SiO2–(Mg,Ca)CO3 system (6.3 GPа, 1100–1500°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°С), as well as a Fe–C melt (1300°С). 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.
KW - DIAMOND FORMATION
KW - IRON CARBIDE
KW - CARBON
KW - GRAPHITE
KW - MECHANISMS
KW - INCLUSIONS
KW - PARAMETERS
KW - NITROGEN
KW - IMPURITY
KW - GROWTH
UR - http://www.scopus.com/inward/record.url?scp=85058858773&partnerID=8YFLogxK
U2 - 10.1134/S1028334X18110016
DO - 10.1134/S1028334X18110016
M3 - Article
AN - SCOPUS:85058858773
VL - 483
SP - 1427
EP - 1430
JO - Doklady Earth Sciences
JF - Doklady Earth Sciences
SN - 1028-334X
IS - 1
ER -
ID: 17926998