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Shimizu Tuff

• Type locality: Shimizu, Kosai, Marumori city, Igu county, Miyagi prefecture
• Tephra
• Miocene

• Lithofacies:

• Thickness: 30 - 150 cm
• Host: Upper Member
• Upper limit: Conformity (Hazama Formation)
• Lower limit: Conformity (Upper Member of Kaneyama Formation)

• Distribution: Shimizu, Kosai - Ide, Marumori city, Igu county, Miyagi pref.; Takenouchi - Shimoyama, Kakuda city, Miyagi pref.

• Fujita et al. (1988) Geology of the Kakuda District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 99p. (in Japanese with English abstract 9p.)