EXPERIMENTAL STUDY OF FE-MG EXCHANGE REACTION BETWEEN ORTHOPYROXENE AND SAPPHIRINE AND ITS CALIBRATION AS A GEOTHERMOMETER

dc.contributor.author	Kawasaki T.
dc.contributor.author	Sato K.
dc.date.accessioned	2021-05-24T06:54:03Z
dc.date.available	2021-05-24T06:54:03Z
dc.date.issued	2002
dc.identifier	https://www.elibrary.ru/item.asp?id=13883615
dc.identifier.citation	Gondwana Research, 2002, 5, 4, 741-747
dc.identifier.issn	1342-937X
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/28655
dc.description.abstract	The exchange of Fe2+ and Mg2+ between orthopyroxene and sapphirine has been investigated at pressures 7-16 kbar and temperatures 850-1300°C using a piston cylinder apparatus for the synthetic and natural systems. This reaction is temperature-dependent and would be a good geothermometer. The equilibration temperature T is approximately expressed by the distribution coefficient as follows: T(°C)=1515/(ln KD+0.943)-273.This empirical equation was applied to some Antarctic granulites and associated rocks. The new orthopyroxene-sapphirine geothermometer gives consistent results with those estimated from the Fe-Mg orthopyroxene-garnet geothermometer.
dc.title	EXPERIMENTAL STUDY OF FE-MG EXCHANGE REACTION BETWEEN ORTHOPYROXENE AND SAPPHIRINE AND ITS CALIBRATION AS A GEOTHERMOMETER
dc.type	Статья

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