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Km1 Tephra Tokuhashi and Endo, 1984

Abbr.: Km1

• Tephra
• Pleistocene

• Lithofacies: Scoria, Volcanic ash
• Lithofacies (Minor): Pumice

• Host: Kamiizumi Formation
• Thickness: ca. 100 cm

• Distribution: Negishi, Kisarazu city, Chiba pref.; Nakatakane - Takasaka - Azu - Katsuma - Kita - Higashikuniyoshi, Ichihara city, Chiba pref.

• Tokuhashi and Endo (1984) Geology of the Anesaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 136p. (in Japanese with English abstract 6p.)