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Title Phase relations of Ca- and Na--Al silicates in low-grade metamorphic rocks
Creator/Author Fernette, J.P. ; Brown, E.H.
Publication Date1976 Dec 01
OSTI IdentifierOSTI ID: 5274831
Other Number(s)CODEN: EOSTA
Resource TypeConference
Specific TypeJournal Article
Resource RelationEOS, Trans., Am. Geophys. Union ; Vol/Issue: 57:12; AGU fall annual meeting; 6 Dec 1976; San Francisco, CA, USA
Research OrgWestern Washington State College, Bellingham
Subject152002 -- Geothermal Data & Theory-- Properties of Minerals & Rocks; ;ALUMINIUM SILICATES-- PHASE STUDIES;CALCIUM SILICATES-- PHASE STUDIES;METAMORPHIC ROCKS;SODIUM SILICATES-- PHASE STUDIES; ALBITE;AMPHIBOLE;ARAGONITE;CALCIUM CARBONATES;CHLORITE MINERALS;EPIDOTES;HEMATITE;IRON OXIDES;PARAGONITE;QUARTZ
Related SubjectALKALI METAL COMPOUNDS;ALKALINE EARTH METAL COMPOUNDS;ALUMINIUM COMPOUNDS;ALUMINIUM SILICATES;CALCIUM CARBONATES;CALCIUM COMPOUNDS;CALCIUM SILICATES;CARBON COMPOUNDS;CARBONATES;CHALCOGENIDES;FELDSPARS;IRON COMPOUNDS;IRON ORES;IRON OXIDES;IRON SILICATES;MICA;MINERALS;ORES;OXIDES;OXYGEN COMPOUNDS;ROCKS;SILICATES;SILICON COMPOUNDS;SILICON OXIDES;SODIUM COMPOUNDS;TRANSITION ELEMENT COMPOUNDS
Description/Abstract Phase relations of pumpellyite, epidote, lawsonite, CaCO/sub 3/, paragonite, actinolite, crossite and iron oxide are analyzed on an Al--Ca--Fe/sup 3 +/ diagram in which all minerals are projected from quartz, albite or jadeite, chlorite and fluid.^Fe/sup 2 +/ and Mg are treated as a single component because variation in Fe/sup 2 +//Mg has little effect on the stability of phases on the diagram.^Comparison of assemblages in the Franciscan, Shuksan, Sanbagawa, New Caledonia, Southern Italian, and Otago metamorphic terranes reveals several reactions, useful for construction of a petrogenetic grid.^The relative P-T stability of the reactant and product assemblages can be determined on the basis of their field distribution and the occurrence of associated calcite or aragonite and jadeite or albite.
Country of PublicationUnited States
LanguageEnglish
FormatPages: 1022
System Entry Date2001 May 13

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