Conditions of core formation in the earth: Constraints from Nickel and Cobalt partitioning

Partitioning experiments in the laser-heated diamond anvil cell: volatile content in the Earth's core

“…However recent LHDAC experiments (Bouhifd & Jephcoat 2003) with compared multi-anvil data (e.g. Li & Agee 1996;Gessmann et al 1999;Chabot et al 2005) show good agreement between the partition coefficients obtained with both techniques. The maximum temperature limit of the multianvil apparatus is near 3000 K (Ito 2007), whereas the LHDAC can in principle raise sample temperatures in direct proportion to a homologous temperature (required as the magma ocean deepens), and is the subject of §2.…”

The influence of carbon on trace element partitioning behavior

“…This similarity suggests that the effect of metallic composition as determined by solid metal/ liquid metal experiments can potentially be applied to models of core formation. Righter et al (1997) and subsequent core formation studies (Righter and Drake, 1999;Gessmann and Rubie, 2000;Li and Agee, 2001;Chabot et al, 2005) have developed equations to express metal/silicate partition coefficients as a function of the variables of pressure, temperature, oxygen fugacity, silicate composition, and metallic composition. Our results suggest the possibility that the effect of metallic composition can be determined from solid metal/liquid metal studies such as this one, parameterized as a function of the light element content of the metallic liquid (such as by Eqs.…”

“…Jana and Walker (1997) compared metal/silicate experiments conducted in C-free and graphite-saturated conditions for five elements, but no experiments were conducted at intermediate C contents. systematically determined the effect of C on the metal/silicate partitioning of V, Cr, and Mn, and Chabot et al (2005) conducted similar experiments for Ni and Co.…”

Metal–silicate partitioning of tungsten at high pressure and temperature: Implications for equilibrium core formation in Earth

“…Experimental partitioning results for Ni and Co have provided the most robust geochemical evidence for high-pressure equilibration between metal and silicate Agee, 1996, 2001;Chabot et al, 2005). Multi-element models involving these and other moderately siderophile elements (e.g.…”