[ Top ] [ Japanese ]

Ag-KP Tephra Akutsu, 1955 (Photo)

Abbr.: Ag-KP

Invalid synonym: Kanuma Pumice

• Type locality: Shimofudokoro, Kanuma city, Tochigi prefecture
• Tephra
• Pleistocene (44 ka; 32 - 31 ka, FT)

• Lithofacies: Lapilli

• Source: Central cone of Akagi volcano
• Mode of eruption: Plinian
• Host: Iwajuku Terrace Deposit, Takaragi Loam
• Thickness: 10 - 150 cm or thicker

• Distribution: Shimofudokoro, Kanuma city, Tochigi pref.; Kamiyokota town, Utsunomiya city, Tochigi pref.; Tagawa river - Kinugawa river - Kurokawa river, Utsunomiya city, Tochigi pref.; Kaminokawa city, Kawachi 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.)
• Miyazaki et al. (1996) Geology of the Makabe District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 103p. (in Japanese with English abstract 4p.)
• Sakamoto et al. (1981) Geology of the Ishioka District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 50p. (in Japanese with English abstract 3p.)
• Sakamoto (1975) Geology of the Isohama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 55p. (in Japanese with English abstract 4p.)