Abstract
Relations of metapelites and metabasites were examined in Archean rocks, and effective diffusion coefficients were determined for components in these rocks, along with the scale of mass transfer of components in them. Concentration profiles and diffusion coefficients of the anorthite end member in plagioclase and Ca in garnet were used to evaluate the duration of the metamorphic processes.
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Original Russian Text © G.G. Lepezin, V.V. Khlestov, 2009, published in Geokhimiya, 2009, No. 3, pp. 259–274.
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Lepezin, G.G., Khlestov, V.V. Mass transfer at the contact of high-Al metapelites and metabasites: An example of the high-temperature Sharyzhalgai Complex, Eastern Sayan. Geochem. Int. 47, 244–259 (2009). https://doi.org/10.1134/S0016702909030033
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DOI: https://doi.org/10.1134/S0016702909030033