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Hotta Tuff

• Tephra
• early Pliocene

• Lithofacies: Tuff, Bentonite

• Host: Dainichi Sand Member
• Thickness: ca. 1.5 - 5 m

• Distribution: Kakegawa city, Shizuoka pref.; Ichimiya - Iida, Mori city, Shuchi county, Shizuoka pref.

• Makiyama and Sakamoto (1957) Mitsuke & Kakezuka, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 43p. (in Japanese with English abstract 7p.)
• Saito and Isomi (1954) Akihasan, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 34p. (in Japanese with English abstract 10p.)