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Ag-OK Tephra

Abbr.: Ag-OK

Invalid synonym: Ag-MzP3

• Tephra
• Pleistocene (ca. 75 ka)

• Lithofacies: Pyroclastic deposit

• Source: Akagi volcano
• Thickness: ca. 11 cm

• Distribution: Gunma pref.; Lake Tsurugaike - Ono river, Shimogo city, Minamiaizu county, Fukushima pref.; Nagano, Tajima, Minamiaizu city, Minamiaizu county, Fukushima pref.

• Ito et al. (2022) Geology of the Kiryu and Ashikaga District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 101p. (in Japanese with English abstract 4p.)
• Yamamoto et al. (2006) Geology of the Kitakata District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 63p. (in Japanese with English abstract 5p.)
• Yamamoto (1999) Geology of the Tajima District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 85p. (in Japanese with English abstract 8p.)