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Zensanji Tephra

• Type locality: Maeyama, Ueda city, Nagano prefecture
• Tephra
• Pleistocene
• Correlation: Lower Tama Loam

• Lithofacies: Pumice
• Sedimentary structures: Parallel stratification

• Thickness: ca. 1.4 m
• Host: Older Josho Lake Deposit

• Distribution: Maeyama, Ueda city, Niigata pref.

• Kato (1980) Geology of the Sakaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 57p. (in Japanese with English abstract 5p.)