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Hog a Tephra

Abbr.: Hog a

• Tephra
• Pliocene - Pleistocene

• Lithofacies: Tephra

• Host: Hachioji Formation

• Distribution: Niigata pref.

• Kobayashi et al. (1989) Geology of the Okanomachi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 112p. (in Japanese with English abstract 5p.)