[ Top ] [ Japanese ]

Kamishikaribetsu Pyroclastic Flow Deposit Yoshida, 1983

Invalid synonym: Kamishikaribetsu Pumice Flow Deposit, Kamishikaribetsu Tuff, HR-2

• Type locality: Shikaribetsu river, Kamishikaribetsu, Otofuke city, Kato county, Hokkaido
• Tephra
• Pleistocene

• Lithofacies: Pyroclastic flow deposit
• Lithofacies (HR-2): Glassy crystalline ash
• Lithofacies (HR-2, Upper): Ash
• Lithofacies (HR-2, Lower): Pumice

• Thickness (HR-2): ca. 50 - 60 cm
• Thickness (HR-2, Upper): ca. 15 cm
• Thickness (HR-2, Lower): ca. 40 cm
• Host: Uppermost Ikeda Group
• Upper limit: Unconformity? (Kamiasahigaoka Pyroclastic Flow Deposit)
• Upper limit (HR-2): Unconformity (Ak6-c)
• Lower limit: Unconformity (Tokachimitsumata Pyroclastic Flow Deposit, Shibusan Formation)
• Lower limit (HR-2): Unconformity (Ak6-d)

• Distribution: Oribe, Kamishihoro city - Osarushinai hills, Otofuke city, Kato county, Hokkaido
• Distribution (HR-2): Kuchoro river, Hokkaido; Aishinai river, Tsurui city, Akan county, Hokkaido

• Hasegawa et al. (2008) Jour. Geol. Soc. Japan, vol.114, no.7, pp.366-381 DOI
• Ishii et al. (2008) Jour. Geol. Soc. Japan, vol.114, no.7, pp.348-365 DOI
• Hasegawa and Nakagawa (2007) Jour. Geol. Soc. Japan, vol.113, no.2, pp.53-72 DOI