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Oshirasawa Granite Sato, 1983

Invalid synonym: Kuzu Granite

• Type locality: Oshirasawa creek, Omachi city, Nagano prefecture
• Plutonic rocks
• Xenolith in Kanazawa Granodiorite
• Paleocene (64.7 Ma, U-Pb; 13.2, 2.1 Ma, K-Ar; 1.6 Ma, FT)
• Intruded by: Kanazawa Granodiorite, Tsumetazawa Granodiorite, Ariake Granite, Takinosawa Granodiorite, Sarusuberi Granophyre, Nanakura Pyroclastic Dikes

• Lithofacies: Biotite granite
• Structure: Foliated

• Distribution: Oshirasawa creek - Mount Hatomine - Kuzu hotspring - Takasegawa river - Nakanosawa creek - Takinosawa creek, Omachi city, Nagano pref.

• Ito et al. (2012) Jour. Geol. Soc. Japan, vol.118, no.7, pp.449-456 DOI
• Harayama et al. (2000) Geology of the Tateyama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 218p. (in Japanese with English abstract 6p.)
• 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.)
• Kato and Sato (1983) Geology of the Shinano-Ikeda District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 93p. (in Japanese with English abstract 7p.)