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Km 1 Tephra

Abbr.: Km 1

• Tephra
• Pleistocene

• Lithofacies: Pumice

• Thickness: 5 cm
• Host: Ozenji Formation

• Distribution: Onda town - Wakakusadai, Midori ward, Yokohama city, Kanagawa pref.

• Oka et al. (1984) Geology of the Tokyo-Seinambu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 148p. (in Japanese with English abstract 7p.)