JOHN A. WINCHESTER; The zonal pattern of regional metamorphism in the Scottish Caledonides. Journal of the Geological Society ; 130 (6): 509–524. doi: https://doi.org/10.1144/gsjgs.130.6.0509
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The petrology of analysed Moine calc-silicate rocks enables a metamorphic zonal map of the Moines to be drawn. Correlation with pelite isograds in the Dalradian has permitted the production of a zonal map of the entire Scottish Caledonide Belt. The complex zonal pattern in the Moines is attributed partly to the interaction of different metamorphic events, which brought about widespread retrogression and apparent metamorphic inversion, and partly to post metamorphic folding of isograde surfaces.