[ Top ] [ Japanese ]

Ag-MzP9 Tephra (Moriya, 1968) Suzuki, 1990

Abbr.: Ag-MzP9

Invalid synonym: P9

• Tephra
• Pleistocene (ca. 140 ka)
• Correlation: Fudo Pumice Flow Deposit

• Lithofacies (Upper): Lapilli
• Lithofacies (Lower): Volcanic ash

• Source: Akagi volcano
• Mode of eruption: Plinian
• Host: Kanuma Terrace Deposit, Kioroshi Formation

• Distribution: Kurokawa river - Namekawa river - Sugatagawa river, Kanuma city, Tochigi pref.; Myojin, Nikko city, Tochigi pref.; Mibu city, Shimotsuga county, Tochigi 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.)
• Yoshikawa et al. (2010) Geology of the Utsunomiya District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 79p. (in Japanese with English abstract 6p.)