Thermochemistry of ordering and mixing in plagioclase feldspars.

M. A. Carpenter, J. D.C. McConnell, A. Navrotsky

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Enthalpies of solution (DELTA H soln) of natural (low) and heat-treated (high) samples were measured in Pb2B2O5 flux at approx 700oC. The high-T series show distinct (DELTA H soln) trends for C1 and I1 structures, while the low-T series show separate trends for 'e' and I1 structures. Enthalpies of ordering are significant at all compositions and are of the order of 2 kcal/mol.-C.M.B.H.

Original languageEnglish (US)
Pages (from-to)190-194
Number of pages5
JournalProgress in Experimental Petrology (N.E.R.C.)
Volume6
StatePublished - 1984
Externally publishedYes

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

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