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Iodake Crystalline Schist Harayama, 1991

A part of Renge Metamorphic Rocks of Renge Belt?

• Type locality: eastern face of the summit of Mount Iodake, Omachi city, Nagano prefecture
• Metamorphic rocks
• Roof pendant of Ariake Granite
• Paleozoic?
• Correlation: Yarigatake Metamorphic Rocks

• Metamorphic facies: Contact (Ariake Granite)
• Lithofacies: Garnet biotite oligoclase schist
• Lithofacies (Minor): Epidote oligoclase hornblende schist
• Lithofacies (Protolith): Accretionary complex?
• Lithofacies (Protolith): Sandstone, Mudstone
• Lithofacies (Protolith, Minor): Mafic volcanic rocks

• Distribution (East - West): 400 m
• Distribution (South - North): 900 m

• Distribution: Mount Iodake, Omachi city, Nagano pref.

• Harayama et al. (1991) Geology of the Yarigatake District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 190p. (in Japanese with English abstract 8p.)