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Nk-HG Tephra Suzuki, 1993

Abbr.: Nk-HG

• Tephra
• late Pleistocene

• Lithofacies: Scoriaceous lapilli

• Source: Nikko volcanos
• Host: Shirasawa Terrace Deposit
• Thickness: 20 cm or thinner

• Distribution: Higashiakada, Nasushiobara city, Tochigi pref.; Natsubodai, Nakaokamoto, Utsunomiya city, Tochigi pref.; Shirasawa town - Hiraide town, Utsunomiya city, Tochigi pref.; Katsuyama, Sakura city, Tochigi pref.

• 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.)