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Hokushin Loam Akahane et al., 1992

Invalid synonym: Iizuna Volcanic Ash, Nojiri Volcanic Ash

• Type locality: Akashio, Iizuna city, Kamiminochi county - Akasaka, Toyota, Nakano city, Nagano prefecture
• Loam
• Pleistocene

• Lithofacies: Loam

• Thickness: 20 - 30 m
• Lower limit: Unconformity (Mure Debris Avalanche Deposit, Hiraide Sand and Gravel Member, Kurai Formation, Kosha Pumice Flow Deposit)

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

• Distribution: Akashio, Iizuna city, Kamiminochi county, Nagano pref.; Akasaka, Toyota, Nakano city, Nagano pref.

• Nagamori et al. (2003) Geology of the Togakushi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 109p. (in Japanese with English abstract 3p.)
• Yanagisawa et al. (2000) Geology of the Iiyama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 144p. (in Japanese with English abstract 6p.)
• Akahane et al. (1992) Geology of the Nakano District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 106p. (in Japanese with English abstract 4p.)