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Shinoyama Volcanics (Yagi, 1943) Kato and Akahane, 1986

Invalid synonym: Shinoyama Lava

• Type locality: Shinoyama forest road, Shinonoi, Nagano city, Nagano prefecture
• Type locality: Mount Takao, Chikuma city, Nagano prefecture
• Volcanic rocks
• Pliocene

• Lithofacies: Basaltic anesite lava, Tuff breccia, Volcanic breccia
• Lithofacies (Minor): Dacitic andesite

• Thickness: 250 m
• Upper limit: Unconformity (Haibara Formation, Ooka Mudflow Deposit)
• Lower limit: Unconformity (Hijiriyama Andesite, Akada Formation)

• Distribution: Shinoyama forest road - Mount Nashirazu, Shinonoi, Nagano city, Nagano pref.; Mount Takao, Chikuma city, Nagano pref.

• Kato and Akahane (1986) Geology of the Nagano District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 120p. (in Japanese with English abstract 5p.)