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Ks5 Tephra

Abbr.: Ks5

• Tephra
• Pleistocene (ca. 0.5 Ma; 0.39 Ma, FT; MIS13)
• Correlaton: Ikadachi II (Kobiwako Group), TFV, Oda

• Lithofacies: Vitreous Tephra

• Source: Aira caldera
• Host: Kasamori Formation, Sanuki Mudstone Member, Sunami Sandstone Member, Kongochi Formation
• Thickness: 70 - 100 cm

• Distribution: Isagoda, Oamishirasato city, Chiba pref.

• Nanayama et al. (2016) Geology of the Mobara District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 101p. (in Japanese with English abstract 4p.)
• Tokuhashi and Endo (1984) Geology of the Anesaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 136p. (in Japanese with English abstract 6p.)