Partial melting of common rocks as a possible source of cordierite-anthophyllite bearing assemblages

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ID: 295073
1968
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Abstract
In a high grade regional metamorphic environment, partial melting and removal of melt will result in a residuum different in composition from the original rock. The possibility that these processes may produce cordierite-anthophyllite bearing rocks is investigated in the system Al ~2~ O ~3~ -MgO-K ~2~ O-Na ~2~ O-SiO ~2~ -H ~2~ O and the development of a petrogenetic grid. These rocks could be formed from such common pre-melting assemblages as potassium feldspar-plagioclase-biotite-sillimanite-quartz and hence from various common protoliths by partial melting filter pressing, and recrystallization. Development of the grid elucidates the possible formation of granitic melts from assemblages not containing K-feldspar or muscovite, or by incongruent melting of quartz-plagioclase-biotite with or without sillimanite or cordierite.
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openalex_W1995916598 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors J. A. Grant
Journal american journal of science
Year 1968
DOI
10.2475/ajs.266.10.908
URL
https://ajsonline.org/article/59207.pdf
Keywords Keywords not found

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