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Heat capacities of the alkali feldspars between 350 and 1000 K from differential scanning calorimetry, the thermodynamic functions of the alkali feldspars from 298.15 to 1400 K, and the reaction quartz + jadeite = analbite
Bruce S. Hemingway, Kenneth M. Krupka and Richard A. Robie
Heat capacities of the alkali feldspars between 350 and 1000 K from differential scanning calorimetry, the thermodynamic functions of the alkali feldspars from 298.15 to 1400 K, and the reaction quartz + jadeite = analbite
American Mineralogist (December 1981) 66 (11-12): 1202-1215
Heat capacities of the alkali feldspars between 350 and 1000 K from differential scanning calorimetry, the thermodynamic functions of the alkali feldspars from 298.15 to 1400 K, and the reaction quartz + jadeite = analbite
American Mineralogist (December 1981) 66 (11-12): 1202-1215
Index Terms/Descriptors
- albite
- alkali feldspar
- analbite
- chain silicates
- clinopyroxene
- enthalpy
- experimental studies
- feldspar group
- framework silicates
- geochemistry
- heat capacity
- high temperature
- jadeite
- microcline
- mineral data
- minerals
- P-T conditions
- phase equilibria
- plagioclase
- properties
- pyroxene group
- quartz
- sanidine
- silica minerals
- silicates
- temperature
- thermodynamic properties
Abstract
The phase equilibrium studies yield -3029.870 + or - 4.200 for the enthalpy and -2851.300 4.200 kJ/mol for Gibbs free energy of formation of jadeite at 298.15 K and 1 bar. Amelia albite is partially disordered and therefore yields underestimates of the enthalpy of the transformation from low-albite to analbite.
ISSN: 0003-004X
EISSN: 1945-3027
Coden: AMMIAY
Serial Title: American Mineralogist
Serial Volume: 66
Serial Issue: 11-12
Title: Heat capacities of the alkali feldspars between 350 and 1000 K from differential scanning calorimetry, the thermodynamic functions of the alkali feldspars from 298.15 to 1400 K, and the reaction quartz + jadeite = analbite
Affiliation: U. S. Geol. Surv.,
Reston, VA,
United States
Pages: 1202-1215
Published: 198112
Text Language: English
Publisher: Mineralogical Society of America,
Washington, DC,
United States
References: 56
Accession Number: 1982-032712
Categories: General geophysics
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 7 tables
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United KingdomTwickenhamUKUnited Kingdom
Update Code: 1982
Program Name: USGSOPNon-USGS publications with USGS authors
