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Colour-coded Compositional Mapping of Orthopyroxene-Plagioclase -: Symplectites in Mafic Granulites from Panrimalai, South India
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Orthopyroxene-plagioclase symplecti tes have been observed in garnet-bearing mafic granulites from Panrirnalai, South India. Symplectites are arrested textures from which one can study diffusional processes. We have used colour-coded compositional mapping for reaction textures from mafic granulites to understand the element mobility pattern. The variable.composition of anorthite in plagioclase supports the interpretation that the orthopyroxene-plagioclase symplectites adjoining embayed garnet blast were formed by open-system diffusion - controlled reaction in the NCFMAS model system.
Keywords
Mafic granulites, Symplectites, Diffusion, South India.
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