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Ks23.5 Tephra

Abbr.: Ks23.5

• Tephra
• Pleistocene

• Lithofacies: Crystalline volcanic ash

• Host: Kasamori Formation
• Thickness: 0 - 3 cm

• Distribution: Kamimobara, Mobara city, Chiba pref.; Yonemichi, Chonan city, Chosei county, Chiba pref.

• Nanayama et al. (2016) Geology of the Mobara District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 101p. (in Japanese with English abstract 4p.)