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Sannotani Tephra

• Tephra
• Pliocene (3.7 - 2.01 Ma, FT)

• Lithofacies: Pumiceous tephra
• Sedimentary structures: Parallel stratification

• Thickness: ca. 50 cm
• Host: Yamada Formation

• Distribution: Sannotani, Hikida, Akiruno city, Tokyo

• 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.)