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Hakkoda-Takatoge Pyroclastic Flow Deposit Kudo, 2005

Abbr.:

• Type locality: Gingo at Horyo, Tochikubo, Towada city, Aomori prefecture
• Tephra
• Pleistocene (0.99 - 0.78 Ma)

• Lithofacies: Dacitic pyroclastic flow deposit
• Lithofacies: Strongly welded

• Source: Hakkoda caldera
• Thickness: 50 - 140 m
• Upper limit: Unconformity (Hakkoda 1st-stage Pyroclastic Flow Deposit)
• Lower limit: Unconformity (Komasuzawa Formation)

• Distribution: Tochikubo, Towada city, Aomori pref.; Oirase river - Taka pass - Mount Tassobe - Fuchisawa river - Shikinai river, Towada city, Aomori pref.

• Kudo (2005) Geology of the Towada District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 79p. (in Japanese with English abstract 3p.)