Unmixing of some high-temperature alkali feldspars and its petrological significance

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Abstract

Various unmixing phenomena are observed in feldspars from solvsbergites and trachytes. The response to heat treatment of these feldspars is predetermined by the original unmixing processes. The cooling history of some solvsbergites is interpreted on the basis of the feldspar study and additional observations made on xenoliths, and evaluation of time intervals between the eruption of several trachytic flows is offered.

Original languageEnglish
Pages (from-to)33-39
Number of pages7
JournalJournal of the Geological Society of Australia
Volume18
Issue number1
DOIs
StatePublished - 1 Jan 1971
Externally publishedYes

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