Olivine/melt transition metal partitioning, melt composition, and melt structure—Influence of Al3+ for Si4+ substitution in the tetrahedral network of silicate melts

Olivine/melt transition metal partitioning, melt composition, and melt structure—Melt polymerization and Qn-speciation in alkaline earth silicate systems

“…Also shown in Fig. 5 are experimental data from the system CaO-MgO-Al 2 O 3 -SiO 2 (Mysen, 2007b). In this latter system K D(mÀMg) -values are significantly more sensitive to NBO/T (Ca) (T= Al + Si) than in the Al-free CaO-MgO-SiO 2 system examined here.…”

The effect of melt composition on mineral-melt partition coefficients: The case of beryllium

“…The success of this approach relies on M 2+ behaving in a similar way to Mg 2+ . This appears to be the case for Fe 2+ , Ni, Co, Cr 2+ and Mn both in Na-free and Na-bearing systems (Watson, 1977;Takahashi, 1978;Jones, 1984;Hanson and Jones, 1998;O'Neill and Berry, 2008;Mysen, 2007;Balta et al, 2011). Zn may also fall into this category because D Mg and D Zn are highly positively correlated in the only systematic experimental data (Kohn and Schofield, 1994); the few available data suggest that Pd 2+ may also behave somewhat similarly (Borisov and Danyushevsky, 2011).…”

“…1b). This is unsurprising as previous work has demonstrated its lack of predictive power: for example, the Al/Si ratio also has a significant effect on transition metal partitioning into olivine (Mysen, 2007 Maekawa et al, 1991). Optical basicity is more strongly correlated (R 2 = 0.81;…”

“…1977; Hirschmann and Ghiorso, 1994;Kohn and Schofield, 1994;Toplis, 2005;Mysen and Dubinsky, 2004;Mysen, 2007;Matzen et al, 2013), as have trace elements with other valences (for example, REE, Y, Sc, Zr, Hf and Al by Evans et al 2008).…”

“…This work was supported by Australian Research Council Laureate Fellowship FL130100066 to HO'N. Biggar (1988), Kohn and Schofield (1994), Mysen (2007), Shejwalkar and Coogan (2005), Soulard et al (1994), Tuff and O'Neill (2010) and Watson (1977). Table 1.…”