The behavior of H2O and CO2 in high-temperature lead borate solution calorimetry of volatile-bearing phases

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105 Scopus citations

Abstract

High-temperature oxide melt solution calorimetry with molten 2PbO.B2O3 as a solvent can be used for determining enthalpies of formation of carbonates and hydrous silicates. Under conditions of gas flow at 1-2 cm3/s, all H2O and CO2 is expelled from the solvent, leading to a reproducible final thermodynamic state. Both analytical data and a number of thermodynamics cycles show that, under these conditions, the volatiles neither dissolve in nor interact energetically with the melt. -Authors

Original languageEnglish (US)
Pages (from-to)1099-1109
Number of pages11
JournalAmerican Mineralogist
Volume79
Issue number11-12
StatePublished - 1994
Externally publishedYes

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology

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