Search Results - "Sokol, A.G."
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Reducing role of sulfides and diamond formation in the Earth's mantle
Published in Earth and planetary science letters (15-08-2007)“…Sulfides are abundant inclusions in diamond, but their role in the diamond genesis is still debatable. To address this issue, experimental modeling of natural…”
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Fluid-bearing alkaline carbonate melts as the medium for the formation of diamonds in the Earth's mantle: an experimental study
Published in Lithos (01-02-2002)“…We have experimentally studied the formation of diamonds in alkaline carbonate–carbon and carbonate–fluid–carbon systems at 5.7–7.0 GPa and 1150–1700 °C, using…”
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3
Diamond and graphite crystallization from C–O–H fluids under high pressure and high temperature conditions
Published in Diamond and related materials (01-12-2001)“…Crystallization of diamond was studied in the CO 2–C, CO 2–H 2O–C, H 2O–C, and CH 4–H 2–C systems at 5.7 GPa and 1200–1420°C. Thermodynamic calculations show…”
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The effect of HPHT treatment on the spectroscopic features of type IIb synthetic diamonds
Published in Diamond and related materials (01-07-2008)“…The effect of high pressure high temperature treatment on the spectroscopic features of boron-doped type IIb synthetic diamonds has been studied. Synthetic…”
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Synthesis of N[H.sub.4]-Substituted Muscovite at 6.3 GPa and 1000[degrees]C: Implications for Nitrogen Transport to the Earth's Mantle
Published in Doklady earth sciences (01-03-2018)“…The synthesis of N[H.sub.4]-bearing muscovite at P = 6.3 GPa and T = 1000[degrees]C in equilibrium with N[H.sub.3]-[H.sub.2]O fluid is performed. It is…”
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Synthesis of Hydrocarbons by C[O.sub.2] Fluid Conversion with Hydrogen: Experimental Modeling at 7.8 GPa and 1350[degrees]C
Published in Doklady earth sciences (01-12-2017)“…Synthesis of hydrocarbons by the interaction of a C[O.sub.2] fluid with hydrogen mantle domains has been simulated in an experiment at 7.8 GPa and…”
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Conditions for the origin of oxidized carbonate-silicate melts: Implications for mantle metasomatism and diamond formation
Published in Lithos (2012)“…An experimental study on the origin of ferric and ferrous carbonate-silicate melts, which can be considered as the potential metasomatic oxidizing agents and…”
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Stability of methane in reduced C–O–H fluid at 6.3 GPa and 1300–1400°C
Published in Doklady earth sciences (01-06-2017)“…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 f O 2…”
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Conditions of carbonation and wehrlitization of lithospheric peridotite upon interaction with carbonatitic melts
Published in Doklady earth sciences (01-12-2015)“…Study of the mechanism of carbonation and wehrlitization of harzburgite upon metasomatism by carbonatitic melts of various genesis was carried out. Experiments…”
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Composition of a carbonatitic melt in equilibrium with lherzolite at 5.5–6.3 GPa and 1350°C
Published in Doklady earth sciences (01-03-2016)“…Generation of ultra-alkaline melts by the interaction of lherzolite with cardonatites of various genesis was simulated at the P – T parameters typical of the…”
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Conditions of phlogopite formation upon interaction of carbonate melts with peridotite of the subcratonic lithosphere
Published in Doklady earth sciences (01-06-2015)“…The geochemical data show that the stage of kim berlite magma generation was preceded by intrusion of carbonatite melts into the protolith. According to the…”
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Experimental study of interaction in the C[O.sub.2]--C system at mantle PT parameters
Published in Doklady earth sciences (01-11-2010)Get full text
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The composition of garnet as an indicator of the conditions of peridotite-carbonatite interaction in the subcratonic lithosphere (experimental data)
Published in Doklady earth sciences (01-07-2015)“…The compositions of the minerals of deep assemblages often provide evidence for epigenetic alterations. Olivine and garnet from mantle peridotites are largely…”
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Incongruent melting of gallium nitride at 7.5 GPa
Published in Diamond and related materials (01-03-2007)“…Melting of GaN was studied at 7.5 GPa and 2300–2400 °C, using a split-sphere multi-anvil apparatus (BARS). Diamond synthesis from graphite in CaCO 3–C system…”
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Conditions of formation of Cr-pyrope and escolaite during mantle metasomatism: Experimental modeling
Published in Doklady earth sciences (2012)“…The combined study of mineral and fluid inclusions in diamonds, as well as experimental studies suggests that the formation of diamonds occurs under the mantle…”
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The diamond growth from Li2CO3, Na2CO3, K2CO3 and Cs2CO3 solvent-catalysts at P=7 GPa and T=1700–1750°C
Published in Diamond and related materials (06-06-1999)Get full text
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The diamond growth from Li 2CO 3, Na 2CO 3, K 2CO 3 and Cs 2CO 3 solvent-catalysts at P=7 GPa and T=1700–1750°C
Published in Diamond and related materials (1999)“…In the series of experiments at P=7 GPa and T=1700–1750°C with their duration from 10 min to 18.5 h the processes of diamond spontaneous nucleation and growth…”
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High-quality synthetic diamonds for SR application
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-06-2000)“…Synthetic diamond single crystals grown by the temperature gradient method using BARS technique have been characterized by means of X-ray diffraction. X-ray…”
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Redistribution of nitrogen implanted in the crystals of synthetic diamond
Published in Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms (01-10-2001)“…The redistribution of nitrogen atoms implanted in synthetic diamond crystals was investigated by secondary ion mass-spectrometry in course of an isothermal…”
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High-pressure synthesis of high-quality diamond single crystals
Published in Diamond and related materials (01-06-1998)Get full text
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