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Sanukayama volcano Isshiki, 1982

• Type locality: Kozushima city, Tokyo
• Volcanic rocks
• Monogenetic volcano
• Pleistocene (0.08, 0.07 Ma, FT)

• Sedimentary facies: Lava dome
• Lithofacies: Biotite-bearing rhyolite lava
• Lithofacies (Minor): Obsidian

• Distribution (South - North): ca. 2 km
• Distribution (East - West): ca. 0.6 km
• Distribution (Height): 200 - 300 m
• Upper limit: Unconformity (Tenjosan volcano)

• Distribution: Kannonura - Yokosebana - Cape Sanukazaki - Kamagashita - Okawa river, Kozushima city, Tokyo

• Isshiki (1982) Geology of the Kozushima District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 75p. (in Japanese with English abstract 3p.)