The Constancy of Upper Mantle fO2 Through Time Inferred from V/Sc Ratios in Basalts: Implications for the Rise in Atmospheric O2

By Z. Li, D. Rubie, C. Gessmann. 2004

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View Paper: https://www.semanticscholar.org/paper/c9663b99fa23949305f84f83941e7e5c7bdd5a50

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In Geophysics

Citations in the corpus

Origin and evolution of the atmospheres of early Venus, Earth and Mars (2018, background): “This is further supported by recent studies of Aulbach and Stagno (2016) and Nicklas et al (2016) whereas e.g. Delano (2001), Canil (2002), Li and Lee (2004), Nicklas et al (2018) suggest only minor changes in the mantle oxygen fugacity since the early Archean, indicating that the mantle had…”
Similar V/Sc Systematics in MORB and Arc Basalts: Implications for the Oxygen Fugacities of their Mantle Source Regions (2005, result): “A buffered mantle is also in line with observations that the fO2 of the mantle has also not changed significantly with time, as evidenced from V systematics of Archean komatiites, basalts and peridotites (Canil, 2002; Lee et al., 2003; Li & Lee, 2004 ) and Cr systematics in Archean basalts and koma”
Atmospheric Escape and Evolution of Terrestrial Planets and Satellites (2008, background): “Although mantle redox change now appears unlikely, based on various petrologic indicators (Li and Lee 2004), the mantle may indeed have absorbed much of this O2.”
Biogeochemical modelling of the rise in atmospheric oxygen (2006, background): “Measurements of the redox-sensitive trace elements Cr, V, and Sc in basalts (Canil, 1999; Delano, 2001; Li & Lee, 2004) have cast doubt on models that invoke redox evolution of the mantle.”
Primary magmas and mantle temperatures through time (2017, background): “Moreover, a fixed redox condition better accounts for the apparent constancy of redox conditions [Li and Lee, 2004]—although disputed by Aulbach and Stagno [2016]—then possible metasomatized conditions in the ambient mantle [Herzberg, 2016] and plume sources [Sobolev et al., 2016] since 2.5 Gyr.”
Why the atmosphere became oxygenated: A proposal (2009, background): “Since then it has been shown that changes in the O2 fugacity of volcanic gases during the past 3.8 Ga have almost certainly been too small to accommodate the required decrease in the H2 content of average volcanic gases (Canil, 2002; Lee et al., 2003; Li and Lee, 2004).”