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Oh13 Tephra

Abbr.: Oh13

• Tephra
• Pleistocene

• Lithofacies: Tuff

• Host: Ohara Formation

• Distribution: Chiba pref.

• Utsunomiya and Ooi (2019) Geology of the Kazusa-Ohara District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 127p. (in Japanese with English abstract 4p.)