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Shinetsu Tephra

• Type locality: Lake Nojiri, Shinano city, Kamiminochi county, Nagano prefecture
• Tephra
• Pleistocene

• Lithofacies: Pumice, Scoria Lapilli, Volcanic ash

• Source: Myoko volcano group, Kosha volcano

• Distribution: Lake Nojiri, Shinano city, Kamiminochi county, Nagano pref.; Mount Myoko, Niigata pref.; Shinano river, Nagano pref.

• Nagamori et al. (2003) Geology of the Togakushi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 109p. (in Japanese with English abstract 3p.)