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Composition changes in a basalt melt contained in a wire loop of Pt80Rh20: effects of temperature, time, and oxygen fugacity

  • Colin H. Donaldson (a1)

Summary

Losses of FeO, Na2O, and K2O from an alkali olivine basalt melted above the liquidus temperature in Pt80Rh20 wire loops are reported as a function of temperature, time, and P O 2. Increasing temperature and decreasing P O2 increase the losses. Compared to open capsules the wire-loop container reduces FeO loss to a minimum but may exacerbate Na2O loss. Nonetheless for most types of experiment involving melt these losses are acceptable.

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Composition changes in a basalt melt contained in a wire loop of Pt80Rh20: effects of temperature, time, and oxygen fugacity

  • Colin H. Donaldson (a1)

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