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Tamoyachidake Lava Muraoka and Takakura, 1988

• Type locality: Summit of Mount Tamoyachi, Aomori city, Aomori prefecture
• Post-caldera volcanoes
• Volcanic rocks
• Stratovolcano
• Pleistocene (ca. 0.4 - 0.15 Ma; 0.23, 0.21, 0.14 Ma, K-Ar)

• Sedimentary facies: Lava flow, Lava dome
• Lithofacies: Quartz olivine augite hypersthene andesite
• Lithofacies: Lava

• Upper limit: Unconformity (Akakuradake Lava, Odake 2nd-stage Lava, Maedake Lavas)
• Lower limit: Unconformity (Hakkoda 2nd-stage Pyroclastic Flow Deposit, Kansuizawa Pyroclastic Flow Deposit)

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Mount Tamoyachi, Aomori city, Aomori pref.

• Takarada and Muraoka (2004) Geology of the Hakkoda San District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 86p. (in Japanese with English abstract 4p.)