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Mgs10 Tephra

Abbr.: Mgs10

• Type locality: 1,235 m above sea level, Maematsuozawa creek, Otari city, Kitaazumi county, Nagano prefecture
• Tephra
• Pliocene (3.8 Ma, FT)

• Lithofacies (Top): Vitreous tuff
• Lithofacies: Tuff
• Sedimentary structures (Top): Parallel stratification

• Thickness: 6.8 m or thicker
• Host: Mageshidani Formation

• Distribution: KMaematsuozawa creek, Otari city, Kitaazumi county, Nagano pref.

• Nagamori et al. (2010) Geology of the Kotaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 130p. (in Japanese with English abstract 4p.)