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O8 Tephra

Abbr.: O8

• Tephra
• Pleistocene

• Lithofacies: Scoria tuff (2 fall units)

• Host: Otadai Formation
• Thickness: 2 - 5 cm

• Distribution: Honoki, Futtsu city, Chiba pref.

• Nakajima and Watanabe (2005) Geology of the Futtsu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 102p. (in Japanese with English abstract 8p.)