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Numagozen Pyroclastic Deposit Yamamoto and Komazawa, 2004

• Type locality: Numagozen shrine, Lake Numazawa, Numazawa, Kaneyama city, Onuma county, Fukushima prefecture
• Volcanic rocks
• Pleistocene (19,880 yBP, ¹⁴C)

• Sedimentary facies: Talus by the collapse of a lava dome
• Sedimentary facies (Basal): Phreatic eruption deposit or phreatomagmatic eruption deposit
• Lithofacies: Biotite-bearing orthopyroxene clinopyroxene hornblende dacite
• Lithofacies: Tuff breccia
• Lithofacies (Basal): Lithic volcanic ash
• Lithofacies (Basal, Minor): Wood fragments

• Thickness: 7 m or thicker
• Thickness (Basal): 1.6 m
• Lower limit: Unconformity (Aizu-kaneyama Volcanic Rocks)

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

• Distribution: Numagozen shrine, Lake Numazawa, Numazawa, Kaneyama city, Onuma county, Fukushima pref.

• Masubuchi and Ishizaki (2011) Jour. Geol. Soc. Japan, vol.117, no.6, pp.357-376 DOI
• 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.)