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Ks12 Tephra

Abbr.: Ks12

• Tephra
• Pleistocene
• Correlation: KZT

• Lithofacies: Pumice

• Source: Older Ontake volcano
• Host: Kasamori Formation
• Thickness:

• Distribution: Choseinomori park, Mobara city, 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.)