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Kengamine Volcano

• Type locality: Forest road at the west of Mount Kengamine, Yamanashi city, Yamanashi prefecture
• Volcanic rocks
• Small volcanos
• early Pleistocene (before ca. 0.7 Ma)

• Sedimentary facies: Lava dome, Volcanic neck, Pyroclastic flow deposit
• Lithofacies (Pyroclastic rocks): Dacite pumice flow deposit, Welded tuff
• Lithofacies (Lava): Dacite lava
• Lithofacies (Mudflow deposit): Gravels, Volcanic ash

• Source: Lava dome and Volcanic neck
• Distribution (East - West): 1 km
• Distribution (South - North): 3 km
• Distribution (Lava dome, Diameter): 700 m
• Distribution (Lava dome, Height): 110 m
• Thickness (Pyroclastic rocks): 80 m
• Thickness (Mudflow deposit): 60 - 70 m
• Lower limit: Unconformity (Kofu Granodioritic Complex)

• Distribution: Mount Kengamine - Yanagidaira, Yamanashi city, Yamanashi pref.; Senganiwa, Makioka town, Yamanashi city, Yamanashi pref.

• Mimura et al. (1984) Geology of the Mitake-Shosenkyo District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 61p. (in Japanese with English abstract 4p.)