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Hi Tephra

Abbr.: Hi

• Tephra
• Miocene

• Lithofacies (Upper): Tuff
• Lithofacies (Lower): Pumiceous Tuff

• Thickness: ca. 15 m
• Host: Omma Sandstone Member

• Distribution: Yokodani - Ueno, Oyabe city, Toyama pref.; Kamimukuta, Fukuoka town, Takaoka city, Toyama pref.

• Sumi et al. (1989) Geology of the Isurugi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 118p. (in Japanese with English abstract 5p.)