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Kitawaki Tephra

Invalid synonym: Gamodo Tephra, Gokenjaya Tephra

Widespread tephra near the boundary between Pliocene and Pleistocene

• Tephra
• Pleistocene (1.67 Ma, FT)
• Correlation: Ebs-Fkd, Pumice Tephra

• Lithofacies: Volcanic ash
• Sedimentary structures: Trough cross-stratification, Parallel stratification

• Thickness: 1 - 5 m
• Host: Kasuga Alternation Member, Uryuzutoge Sands and Gravels Member, Gamodo Gravels Member, Seta Gravels Member

• Distribution: Kasuga, Minakuchi town, Koka city, Shiga pref.; Gokenjaya, Konan city, Shiga pref.; Kabata, Higashiomi city, Shiga pref.: Minogo, Ritto city, Shiga pref.

• Nakano et al. (2003) Geology of the Minakuchi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 83p. (in Japanese with English abstract 3p.)
• Yoshida et al. (2003) Geology of the Omi-Hachiman District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 72p. (in Japanese with English abstract 3p.)
• Ishida et al. (1984) Geology of the Hikone-Seibu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 121p. (in Japanese with English abstract 6p.)