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As-UG Tephra

Abbr.: As-UG

Invalids synonym: UG, AS23-25, TnP-III

• Tephra
• Pleistocene (ca. 12 ka, ¹⁴C)

• Lithofacies: Vitreous tephra

• Source: Asama volcano
• Host: Tachikawa Loam

• Distribution: 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.)