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Saguchi Volcanic Ash

• Type locality: Saguchi - Oishigawa, Sakuho city, Minamisaku county, Nagano prefecture
• Tephra
• early Pleistocene

• Lithofacies: Hypersthene augite hornblende dacite volcanic ash, Lava

• Thickness: 5 cm - 7 m

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Saguchi - Oishigawa, Sakuho city, Minamisaku county, Nagano pref.; Osawa - Maeyama, Saku city, Nagano pref.; Shiraiwa, Kitaaiki city, Minamisaku county, Nagano pref.

• Kawachi (1974) Geology of the Tateshinayama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 114p. (in Japanese with English abstract 5p.)