Fluids and melting under upper amphibolite facies conditions

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doi: 10.1144/gsjgs.140.4.0629
Authors:Powell, Roger
Author Affiliations:Primary:
Univ. Leeds, Dep. Earth Sci., Leeds LS2 9JT, United Kingdom
Volume Title:Fluids in metamorphism
Volume Authors:Brown, Michael, convener; Powell, Roger; Yardley, Bruce W. D.
Source:Journal of the Geological Society of London, 140(4), p.629-633; Fluids in metamorphism; Geological Societies of the British Isles; fifth meeting, Glasgow, United Kingdom, Sept. 23, 1982, convened by Michael Brown, Roger Powell and Bruce W. D. Yardley. Publisher: Geological Society of London, London, United Kingdom. ISSN: 0016-7649
Publication Date:1983
Note:In English. 9 refs.; illus.
Summary:Internal buffering paths on T-aH2O diagrams for the pelitic model system NaAlO2-KAlO2-CaAl2O4-Al2SiO5-SiO2-H2O give rise to sequences of assemblages which correspond with those found in upper amphibolite-facies terrains. In particular, the persistence of the assemblage quartz-alkali feldspar-plagioclase-muscovite-sillimanite across a zone and the rapidly changing composition of plagioclase across this zone can be accounted for. [R.A.H.]
Subjects:Amphibolite facies; Facies; Fluid phase; Melting; Metamorphic rocks; Metamorphism; Metapelite; Metasedimentary rocks; Models; Phase equilibria; Processes
Abstract Numbers:84M/1572
Record ID:1985080238
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom, Reference includes data from PASCAL, Institute de l'Information Scientifique et Technique
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