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KK Tephra Kanagawa prefecture, 1955

Abbr.: KK

Invalid synonym: Kk

• Tephra
• Pleistocene

• Lithofacies: Vitreous volcanic ash

• Thickness: 35 - 60 cm
• Source: Chubusangaku area
• Host: Inagi Formation, Kakio Formation, Tsurukawa Formation

• Distribution: Kurokawa - Kuriki, Aso ward, Kawasaki city, Kanagawa pref.; Kitahassaku, Midori ward, Yokohama city, Kanagawa pref.

• Ueki et al. (2013) Geology of the Hachioji District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 137p. (in Japanese with English abstract 6p.)
• Oka et al. (1984) Geology of the Tokyo-Seinambu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 148p. (in Japanese with English abstract 7p.)