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Yamato Pyroclastic Flow Deposit

• Tephra
• Miocene (8.9 Ma, FT)

• Sedimentary facies: Terrestrial
• Lithofacies: Pyroclastic flow deposit
• Lithofacies (Top): Accretionary lapilli-bearing vitreous tuff
• Lithofacies: Dacitic pumice tuff breccia
• Lithofacies (Minor): Charcoal

• Host: Fujitoge Formation
• Thickness: 20 m or thinner

• Distribution: western Aizu basin, Fukushima pref.

• 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 and Komazawa (2004) Geology of the Miyashita District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 71p. (in Japanese with English abstract 5p.)