[ Top ] [ Japanese ]

Sa Tephra Mizuno et al., 1987

Abbr.: Sa

• Type locality: Sanma - Kassa, Omaezaki city, Shizuoka prefecture
• Tephra
• middle Miocene - Pliocene

• Lithofacies: Volcanic ash

• Host: Oyori Mudstone, Ogane Mudstone
• Thickness (Upper): ca. 10 cm
• Thickness (Middle): ca. 10 cm
• Thickness (Lower): ca. 10 cm

• Distribution: Sanma - Kassa - Niino, Omaezaki city, Shizuoka pref.

• Sugiyama et al. (1988) Geology of the Omaezaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 153p. (in Japanese with English abstract 6p.)