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Sugitani IV Tephra Yoshida, 1989

• Type locality: Sugitanigawa river, Komono city, Mie county, Mie prefecture
• Tephra
• Pliocene

• Lithofacies: Vitreous volcanic ash

• Host: Oizumi Formation
• Thickness: 60 cm or thicker

• Distribution: Sugitanigawa river - Sugitani, Komono city, Mie county, Mie pref.

• Yoshida et al. (1991) Geology of the Kuwana District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 154p. (in Japanese with English abstract 5p.)
• Harayama et al. (1989) Geology of the Gozaishoyama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 145p. (in Japanese with English abstract 6p.)