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Sankakuyama Lava Dome

• Volcanic rocks
• Lava dome
• Pleistocene - Holocene

• Lithofacies: Orthopyroxene clinopyroxene andesite lava

• Lower limit: Unknown (Sankakuyamakita Stratovolcano Products)

• Distribution: Mount Sankaku, Shizukuishi city, Iwate county, Iwate pref.

• Suto and Ishii (1987) Geology of the Shizukuishi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 142p. (in Japanese with English abstract 5p.)