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Ariake Granite Ishizawa, 1982

• Type locality: 990 m above sea level, Chigawa river, Matsukawa city, Kitaazumi county, Nagano prefecture
• Type locality (Marginal): Warimosawa creek, Omachi city, Nagano prefecture
• Plutonic rocks
• Paleocene (64.4, 62.3 Ma, K-Ar)
• Intruded by: Daikokudake Granodiorite, Jiigatake Volcanics, Kurobegawa Granite, Kanazawa Granodiorite, Okawazawa Granite, Okukurobe Granite, Takinosawa Granite, Zenkoshidaira Porphyrite, Felsic rocks, Andesite dike
• Intruded in: Shiroumadake Formation, Kizaki Rhyolite, Kizaki Formation, Oshirasawa Granite, Tsumetazawa Granodiorite, Kitakama Body, Magarisawa Granite, Nishimata Granite, Ichinosawa Granite, Sawando Complex

• Sedimentary facies: Batholith
• Lithofacies: Magnetite series
• Lithofacies: Hornblende-bearing biotite granite
• Lithofacies (Marginal): Biotite granite porphyry, Biotite granite, Aplite
• Structures: Foliated

• Distribution (East - West): 10 - 18 km
• Distribution (South - North): 45 km
• Distribution: ca. 80 km²
• Upper limit: Unconformity (Jiigatake Andesite, Tsubetaike Welded Tuff, Shirasawatengu Rhyolite, Yarisawa Breccia)

• Distribution: Chigawa river - Minaminakagawa river, Matsukawa city, Kitaazumi county, Nagano pref.; Daikokuzawa? creek - Kaerazunoken - Tengusawa creek - Hirakawa river - Hakuba47 skii resort, Hakuba city, Kitaazumi county, Nagano pref.; Nanakurazawa creek - Kitakuzusawa creek - Mount Hatomine - Ninosawa creek - Kurosawa creek - Tomi ridge - Higashisawa creek - Bunatate ridge - Nigorisawa creek - Fudosawa creek - Mount Yumatadake - Mount Takaarashiyama - Yumatagawa river - Mizumatagawa river - Warimosawa creek - Mount Gakidake - Mount Higashisawadake - Mount Otenshodake - Mount Karasawadake - Binbozawa creek - Mount Noguchigorodake - Mount Minamimasagodake - Iosawa creek - Mount Akadake - Mount Shiroyama - Mount Oborayama, Omachi city, Nagano pref.; Nakafusagawa river - Susado - Manganji - Kawakubozawagawa river - Asakwa river - Horigane - Mount Kojoyama, Azumono city, Nagano pref.; Mount Karamatsudake, Nagano pref. - Toyama pref.; Harinokidani valley, Toyama city, Toyama pref.

• Ueki and Harayama (2012) Jour. Geol. Soc. Japan, vol.118, no.4, pp.207-219 DOI
• Harayama et al. (2010) Jour. Geol. Soc. Japan, vol.116, Supplement, pp.63-81 DOI
• Harayama et al. (2009) Geology of the Matsumoto District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 63p. (in Japanese with English abstract 3p.)
• Nakano et al. (2002) Geology of the Shiroumadake District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 105p. (in Japanese with English abstract 5p.)
• 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 et al. (1989) Geology of the Omachi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 111p. (in Japanese with English abstract 7p.)
• 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.)