CHAPTER 7. THE EFFECT OF OXYGEN FUGACITY ON THE REDOX STATE OF NATURAL LIQUIDS AND THEIR CRYSTALLIZING PHASES

1990 ◽  
pp. 191-212 ◽  
Author(s):  
I. S. E. Carmichael ◽  
M. S. Ghiorso
Keyword(s):  
Oxygen Fugacity ◽  
Redox State ◽  
Effect Of Oxygen

The effect of oxygen fugacity on diamond resorption in ascending kimberlite melt

Lithos ◽  
2021 ◽  
pp. 106166
Author(s):  
Alexander F. Khokhryakov ◽  
Alexey N. Kruk ◽  
Alexander G. Sokol
Keyword(s):  
Oxygen Fugacity ◽  
Effect Of Oxygen

Towards the investigation of ternary compound in the Ti-Al-Zr-O system: Effect of oxygen fugacity on phase formation

2020 ◽  
Vol 40 (10) ◽  
pp. 3663-3672 ◽  
Author(s):  
T.B. Bekker ◽  
K.D. Litasov ◽  
A.F. Shatskiy ◽  
N.E. Sagatov ◽  
P.G. Krinitsin ◽  
...  
Keyword(s):  
Oxygen Fugacity ◽  
Ternary Compound ◽  
Phase Formation ◽  
System Effect ◽  
Effect Of Oxygen

scholarly journals The effect of oxygen fugacity on the rheological evolution of crystallizing basaltic melts

2018 ◽  
Vol 487 ◽  
pp. 21-32 ◽  
Author(s):  
S. Kolzenburg ◽  
D. Di Genova ◽  
D. Giordano ◽  
K.U. Hess ◽  
D.B. Dingwell
Keyword(s):  
Oxygen Fugacity ◽  
Effect Of Oxygen ◽  
Basaltic Melts

scholarly journals Redox state of Earth’s magma ocean and its Venus-like early atmosphere

2020 ◽  
Vol 6 (48) ◽  
pp. eabd1387
Author(s):  
Paolo A. Sossi ◽  
Antony D. Burnham ◽  
James Badro ◽  
Antonio Lanzirotti ◽  
Matt Newville ◽  
...  
Keyword(s):  
Oxygen Fugacity ◽  
Redox State ◽  
Magma Ocean ◽  
Earth’S Atmosphere ◽  
Terrestrial Atmosphere ◽  
Early Atmosphere ◽  
Earth's Atmosphere ◽  
The Relationship

Exchange between a magma ocean and vapor produced Earth’s earliest atmosphere. Its speciation depends on the oxygen fugacity (fO2) set by the Fe3+/Fe2+ ratio of the magma ocean at its surface. Here, we establish the relationship between fO2 and Fe3+/Fe2+ in quenched liquids of silicate Earth-like composition at 2173 K and 1 bar. Mantle-derived rocks have Fe3+/(Fe3++Fe2+) = 0.037 ± 0.005, at which the magma ocean defines an fO2 0.5 log units above the iron-wüstite buffer. At this fO2, the solubilities of H-C-N-O species in the magma ocean produce a CO-rich atmosphere. Cooling and condensation of H2O would have led to a prebiotic terrestrial atmosphere composed of CO2-N2, in proportions and at pressures akin to those observed on Venus. Present-day differences between Earth’s atmosphere and those of her planetary neighbors result from Earth’s heliocentric location and mass, which allowed geologically long-lived oceans, in-turn facilitating CO2 drawdown and, eventually, the development of life.

Effect of oxygen fugacity on the glass transition, viscosity and structure of silica- and iron-rich magmatic melts

2017 ◽  
Vol 470 ◽  
pp. 78-85 ◽  
Author(s):  
Danilo Di Genova ◽  
Jérémie Vasseur ◽  
Kai-Uwe Hess ◽  
Daniel R. Neuville ◽  
Donald B. Dingwell
Keyword(s):  
Glass Transition ◽  
Oxygen Fugacity ◽  
Effect Of Oxygen

Influence of oxygen fugacity and temperature on the redox state of iron in natural silicic aluminosilicate melts

2012 ◽  
Vol 50 (4) ◽  
pp. 330-343 ◽  
Author(s):  
M. V. Volovetskii ◽  
O. A. Lukanin ◽  
V. S. Rusakov ◽  
A. A. Kargal’tsev
Keyword(s):  
Oxygen Fugacity ◽  
Redox State

Oxygen diffusion in olivine: Effect of oxygen fugacity and implications for creep

1989 ◽  
Vol 94 (B4) ◽  
pp. 4105-4118 ◽  
Author(s):  
F. J. Ryerson ◽  
W. B. Durham ◽  
D. J. Cherniak ◽  
W. A. Lanford
Keyword(s):  
Oxygen Fugacity ◽  
Oxygen Diffusion ◽  
Effect Of Oxygen
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