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Kaishio Source Vent Harayama and Kasahara, 1987

• Type locality: Kaishiodani valley, Okuhidaonsengo, Takayama city, Gifu prefecture
• Volcanic rocks
• One of vents of Kamitakara Pyroclastic Flow Deposit
• Pleistocene
• Intruded in: Hirayu Complex

• Sedimentary facies: Volcanic neck
• Lithofacies: Rhyolite welded tuff, Granite porphyry, Tuff breccia

• Distribution (East - West): 1.4 km
• Distribution (South - North): 0.9 km

• Distribution: Kaishiodani valley, Okuhidaonsengo, Takayama city, Gifu pref.

• Harayama (1990) Geology of the Kamikochi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 175p. (in Japanese with English abstract 11p.)