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HU1 Tephra

Abbr.: HU1

• Tephra
• Pleistocene
• Correlation: Ob4b-1

• Lithofacies: Pumiceous tephra

• Thickness: 10 - 60 cm
• Host: Oyamada Formation

• Distribution: Tamagawa river, Sakae town, Hino city, Tokyo; Asakawa river, Ueda, Hino city, Tokyo; Naganuma park, Naganuma, Hachioji city, 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.)