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Mylonite xenolith: an example from the Tenryukyo granite, the Ryoke belt, central Honshu, Japan.

• Michibayashi, K., Makino, T. and Yoshida, S. 1997. "Xenolith windows": intensely deformed mylonites entrained in the Tenryukyo granite, the Ryoke belt, central Honshu, Japan. Journal of the Geological Society of Japan, 103.

Width of base: 10 mm.
Microstructure of the Tenryukyo midium grained biotite granite. Crossed polars.

Width of base: 10 mm.
Microstructure of the Tenryukyo midium grained biotite granite. Open polar.

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Width of base: 10 mm.
Microstructure of the mylonite xenolith preserved within the Tenryukyo granite. Porphyroclastic feldspar grains are mostly plagioclase grains. Crossed polars.

Width of base: 10 mm.
Microstructure of the mylonite xenolith preserved within the Tenryukyo granite. Open polar.

Width of base: 5 mm.
Close up view of a plagioclase porphyroclast, which has asymmetric trails consisting of K-feldspar aggregates. Quartz grains occur only in the mixed matrix with plagioclase and K-feldspar, whereas K-feldspar aggregates occur either in the strain shadows of porphyroclasts or monomineralic phase as well as in the mixed matrix with the other minerals.

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