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Kisen Tephra

• Tephra
• Pleistocene
• Correlation: Ss-Az

• Lithofacies: Volcanic ash

• Source: Shishimuta caldera, Oita pref., Japan
• Host: Katata Formation, Kisen Clays Member
• Thickness: 200 cm

• Distribution: Shiga pref.

• Kimura et al. (2001) Geology of the Kitakomatsu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 102p. (in Japanese with English abstract 5p.)
• Kimura et al. (1998) Geology of the Kyoto-Tohokubu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 89p. (in Japanese with English abstract 5p.)
• Ishida et al. (1984) Geology of the Hikone-Seibu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 121p. (in Japanese with English abstract 6p.)