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Sonoyama Tephra

• Tephra
• Pleistocene

• Host: Fujimidai Sands and Clays Member

• Distribution: Shiga pref.

• Wakita et al. (2013) Geology of the Kyoto-Tonambu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 124p. (in Japanese with English abstract 3p.)