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Ashino Pyroclastic Flow Deposit
Invalid synonym: Nn2 Pyroclastic Flow Deposit, Tashiro Tuff
- Volcanic rocks
- Caldera-overflow pyroclastic deposit
- early Pleistocene (1.45 - 1.27 Ma; 1.2 Ma, FT)
- Correlation: Ob5c (Choshi, Chiba), Shirakawa Ashino-Kd8 Tephra
- Lithofacies: Pyroclastic flow deposit
- Lithofacies: Hornblende orthopyroxene clinopyroxene dacite
- Lithofacies: Pumiceous tuff breccia, Pumiceous lapilli tuff
- Lithofacies (Lower): Volcanic sands
- Lithofacies (Bottom): Pumice fall deposit
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Aga river, Yunokami - Yagoshima, Shimogo city, Minamiaizu county, Fukushima pref.; Minano river, Shimogo city, Minamiaizu county, Fukushima pref.; Yone, Nishigo village, Nishishirakawa county, Fukushima pref.; Mount Aizununobiki, Aizuwakamatsu city, Fukushima pref.; Sakasegawa, Aizumisato city, Onuma county, Fukushima pref.; Kasshi, Nishigo city, Nishishirakawa county, Fukushima pref.
- Suzuki (2011) Jour. Geol. Soc. Japan, vol.117, Supplement, pp.121-133 DOI
- Yamamoto et al. (2006) Geology of the Kitakata District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 63p. (in Japanese with English abstract 5p.)
- Yamamoto (1999) Geology of the Tajima District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 85p. (in Japanese with English abstract 8p.)
- Yamamoto and Yoshioka (1992) Geology of the Wakamatsu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 73p. (in Japanese with English abstract 5p.)