Инд. авторы:	Sokol A.G., Tomilenko A.A., Bul’bak T.A, Palyanova G.A., Palyanov Y.N., Sobolev N.V.
Заглавие:	Stability of methane in reduced C–O–H fluid at 6.3 GPa and 1300–1400°C
Библ. ссылка:	Sokol A.G., Tomilenko A.A., Bul’bak T.A, Palyanova G.A., Palyanov Y.N., Sobolev N.V. Stability of methane in reduced C–O–H fluid at 6.3 GPa and 1300–1400°C // Doklady Earth Sciences. - 2017. - Vol.474. - Iss. 2. - P.680-683. - ISSN 1028-334X. - EISSN 1531-8354.
Внешние системы:	DOI: 10.1134/S1028334X17060149; SCOPUS: 2-s2.0-85024111086; WoS: 000405705400015;
Реферат:	eng: The composition of a reduced C–O–H fluid was studied by the method of chromatography–mass spectrometry under the conditions of 6.3 GPa, 1300–1400°C, and fO2 typical of the base of the subcratonic lithosphere. Fluids containing water (4.4–96.3 rel. %), methane (37.6–0.06 rel. %), and variable concentrations of ethane, propane, and butane were obtained in experiments. With increasing fO2, the proportion of the CH4/C2H6 peak areas on chromatograms first increases and then decreases, whereas the CH4/C3H8 and CH4/C4H10 ratios continually decrease. The new data show that ethane and heavier HCs may be more stable to oxidation, than previously thought. Therefore, when reduced fluids pass the “redox-front,” carbon is not completely released from the fluid and may be involved in diamond formation. © 2017, Pleiades Publishing, Ltd.
Ключевые слова:	Mass spectrometry; Diamond formation; Peak area; Redox front; Variable concentration; Methane; Ethane; methane; mass spectrometry; ethane; concentration (composition); chromatography; Chromatographic analysis; Carbon;
Издано:	2017
Физ. характеристика:	с.680-683