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SPINEL-PYROXENE-GARNET RELATIONSHIPS AND THEIR DEPENDENCE ON CR/AL RATIO

Abstract:

The partitioning of Cr and Al between coexisting spinel and clinopyroxene and the dependence of spinel-cpxgarnet equilibria on Cr/Al ratio have been investigated by a combination of phase equilibrium experiments, high temperature solution calorimetry and thermodynamic calculations. The exchange equilibrium: {Mathematical expression} has a measured enthalpy change for pure phases of -2,100±500 cal at 970 K and 1 atm. Experimental reversals of Cr-Al partitioning between the spinel and clinopyro...

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Publication status:
Published

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Publisher copy:
10.1007/BF00374429

Authors


Publisher:
Springer-Verlag
Journal:
CONTRIBUTIONS TO MINERALOGY AND PETROLOGY
Volume:
92
Issue:
4
Pages:
471-480
Publication date:
1986-01-01
DOI:
EISSN:
1432-0967
ISSN:
0010-7999
URN:
uuid:ce64b4c2-4c7c-4e94-9d93-b5a010b2a9ae
Source identifiers:
174966
Local pid:
pubs:174966
Language:
English

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