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HU2 Tephra

Abbr.: HU2

• Tephra
• Pleistocene (1.65 - 1.6 Ma; 1.49, 1.4, 1.3 Ma, FT)
• Correlation: Kd25, Segamisawa 3 (Koshiba Formation)

• Lithofacies (Upper): Reworked tuffaceous silt
• Lithofacies: Vitreous tephra

• Thickness: ca. 0.2 - 2 m
• Host: Oyamada Formation

• Distribution: Tamagawa river, Sakae town, Hino city, Tokyo; Horinouchi - Kamiyugi - Kamioyamada, Hachioji city, Tokyo; Naganuma park, Naganuma, Hachioji, Tokyo

• 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.)
• Ueki and Sakai (2007) Geology of the Ome District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 189p. (in Japanese with English abstract 5p.)