Near-equilibrium isotope fractionation during planetesimal evaporation

Young, E. D.; Shahar, A.; Nimmo, F.; Schlichting, H. E.; Schauble, E. A.; Tang, H.; Labidi, J.
2019
ICARUS
DOI
10.1016/j.icarus.2019.01.012
Silicon and Mg in differentiated rocky bodies exhibit heavy isotope enrichments that have been attributed to evaporation of partially or entirely molten planetesimals. We evaluate the mechanisms of planetesimal evaporation in the early solar system and the conditions that controlled attendant isotope fractionations.