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U10A Tephra

Abbr.: U10A

• Tephra
• Pleistocene

• Lithofacies: Crystalline tephra

• Host: Umegase Formation
• Thickness:

• Distribution: Gundari, Ichinomiya city, Chosei couty, 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.)