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SYG Tephra

Abbr.: SYG

• Type locality: Kanahorizawa creek, Miyadera, Iruma city, Saitama prefecture
• Tephra
• Pleistocene (1.7 Ma)
• Correlation: Tg

• Lithofacies: Vitreous tephra

• Thickness: 10 - 30 cm
• Host: Sayama Formation

• Distribution: Kanahorizawa creek, Miyadera, Iruma city, Saitama pref.

• 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.)