Compositional Model for the Earth's Core

By W. McDonough. 2003

593 citations recorded by the source corpus.

Subfields: Artificial Intelligence, Geophysics

View Paper: https://www.semanticscholar.org/paper/dca269736eb22daef8775a13f68cce45adf85aab

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Citations in the corpus

Evidence for multiple magma ocean outgassing and atmospheric loss episodes from mantle noble gases (2013, background): “An atmospheric loss event that also involved partial loss of an ocean could explain why the heavy halogens (Cl, Br) are depleted in the Earth relative to fluorine and other highly volatile elements (Fig. 8; McDonough, 2003; Sharp and Draper, 2013).”
The composition of Mars (2019, background): “, 2013), resulting in half of the Earth’s inventory of V to be in the core (McDonough, 2014).”
Urey ratio and the structure and evolution of Earth's mantle (2008, background): “The K content of the core is more debatable [e.g., Lewis, 1971; Bukowinski, 1976; McDonough, 2003; Lassiter, 2006].”
Modelling the palaeo-evolution of the geodynamo (2009, background): “) core, which is not favoured for the Earth based on geochemical constraints (McDonough 2003) yielding a sulphur content of 3 per cent wt.”
Phase relations in the Fe-FeSi system at high pressures and temperatures (2013, background): “This light element component is likely a mixture of 41 silicon, oxygen, sulfur, carbon, and/or hydrogen (e.g., Allègre et al., 1995; McDonough, 2003; 42 Poirier, 1994).”
Heterogeneous accretion, composition and core–mantle differentiation of the Earth (2011, methodology): “The carbon content of the core has been estimated to be ~0.2 wt.% (McDonough, 2003) and is not considered here.”
Nitrogen solubility in molten metal and silicate at high pressure and temperature (2012, background): “…2008; Dasgupta et al., 2013) with an upper concentration limit of 1 wt% (Wood et al., 2013), and about 0.1 wt% of hydrogen are present in the core (McDonough, 2003), the presence of such small amount of H and C should not change the systematics of nitrogen solubility we suggest from the present…”
Modeling fractional crystallization of group IVB iron meteorites (2008, background): “Given the reference frame of Earth's core and mantle compositions, we suggest that the bulk silicate portion of the IVB parent body most likely was characterized by Fe/ Mn, V/Sc and Mn/Li ratios considerably different from Earth's mantle ($200, 10, 1600, respectively, for the parent body and $60, 5,”
Turbulent Mixing of Metal and Silicate during Planet Accretion – and interpretation of the Hf-W chronometer (2010, background): “The estimatedWpartition coefficient during the lastmajormetal–silicate equilibration event is ∼16 (Righter et al., 1997; Drake and Righter, 2002; McDonough, 2003).”
Melting in the Fe–C system to 70 GPa (2009, background): “As a result of these difficulties, estimates of the Earth’s carbon content are speculative and 56 diverse, ranging from as low as 0.2 wt% (Dasgupta and Walker, 2008; McDonough, 2003) to 4 57 wt% (Hillgren et al., 2000).”
A reference Earth model for the heat‐producing elements and associated geoneutrino flux (2013, methodology): “The refractory nature of U and Th means that the Earth should have accreted with the full solar complement of these elements, whereas the volatility of K has led to its depletion in the Earth relative to the Sun and primitive chondritic meteorites [e.g., McDonough , 2003].”
Equation of state and phase diagram of FeO (2011, background): “Correcting the outer core density to account for a Ni/Fe atomic ratio of 0.058 in the core (McDonough, 2003), we find that 7.9 ± 1.1 weight percent oxygen would be necessary to match PREM at the CMB for an Fe-Ni-O core.”