Scapolite phase equilibria: additional constraints on the role of CO2 in granulite genesis

D. P. Moecher, E. J. Essene

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The scapolite decarbonation equilibrium Meionite + Quartz = Anorthite + Grossular + CO2 is used to calculate the activity of CO2 (aCO2) in scapolite granulites and lower crustal xenoliths. Calculations of H2O activities and C-O-H-S fluid speciation for the Furua Granulite Complex in Tanzania suggest that peak metamorphism occurred in the absence of a fluid phase, but they are not consistent with CO2-flooding as a mechanism for producing lowered water activities in these granulites. -from Authors

Original languageEnglish
Pages (from-to)385-396
Number of pages12
JournalUnknown Journal
DOIs
StatePublished - 1990

ASJC Scopus subject areas

  • General Environmental Science
  • General Earth and Planetary Sciences

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