A nepheline-alkali feldspar geothermomet
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Marjorie Powell; Roger Powell
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Article
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1977
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Springer
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English
β 522 KB
A nepheline-alkali feldspar geothermometer has been developed which is based on the thermodynamics of an N~K exchange reaction between nepheline and alkali feldspar. The activities are formulated in terms of site occupancies, and the regular solution model is used to represent nonideal mixing of the