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Shindai? Volcanic Ash

• Tephra
• Pleistocene

• Lithofacies: Biotite rhyolite - hornblende dacite volcanic ash
• Lithofacies (Minor): Andesite pumice

• Host: Oishigawa Scoria, Kasuga Volcanic Rocks
• Thickness: 3 m

• Distribution: Shindai? - Yuharashinden - Nakaodagiri, Saku city, Nagano pref.

• Kawachi and Aramaki (1979) Geology of the Komoro District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 39p. (in Japanese with English abstract 2p.)