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Towada Kirida Tephra (Hayakawa, 1985) Kudo, 2005

Abbr.: KR, BP1

Synonym (Invalid).: Biscuit Pumice 1 Tephra, Kirida Pyroclastic Fall Deposit

• Type locality: Sennosawa creek, Towada city, Aomori prefecture
• Tephra
• Pleistocene (35.8 cal ka BP)

• Lithofacies: Volcanic ash fall deposit, Pumice fall deposit
• Lithofacies (Kirida 4): Volcanic ash, Pumice fall deposit
• Lithofacies (Kirida 3): Pumice fall deposit

• Source: Towada caldera
• Thickness (Kirida 4): 50 cm
• Thickness (Kirida 3): 10 cm

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

• Distribution: Sennosawa creek, 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.)