High Temperature Evaporation and Isotopic Fractionation of K and Cu.

ABSTRACT: The chemical and isotopic signatures of moderately volatile elements are useful for understanding processes of volatile depletion in planetary formation and differentiation. However, the fractionation factors between gas and melt phases during evaporation that are required to model these planetary volatile depletion processes are still sparse. In this study, twenty heating experiments were conducted in 1 atm gas-mixing furnaces to constrain the behavior of K, Cu, and Zn evaporation and isotopic fractionation from basaltic melts at high temperatures. The temperatures range from 1300 °C to 1400 °C, and durations are from 2 to 8 days. Oxygen fugacities (fO₂) range from one log unit below to ten log units above that of the iron-wüstite buffer (IW-1 to IW+10, corresponding to

SUBMITTER: Neuman M 

PROVIDER: S-EPMC8740699 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature