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Tsugaike Complex Nakano et al., 2002

• Type locality: Minamimata, Kusunokigawa river - Yunoirizawa creek, Hakuba city, Kitaazumi county, Nagano prefecture
• Accretionary complex
• Permian
• Correlation: Kotaki Formation

• Sedimentary facies: Marine
• Lithofacies: Interbedded felsic tuff and shale
• Lithofacies (Lower): Greenstones
• Lithofacies (Minor): Mélange facies
• Matrix: Shale, Tuff
• Exotic blocks (Crusts): Greenstones, Limestone, Pyroxene gabbro, Pyroxinite

• Lower limit: Thrust fault (Renge Metamorphic Rocks)

• Distribution: Minamimata, Kusunokigawa river - Yunoirizawa creek - Sarukura - Mount Obinatayama - Mount Yazakiyama - Oyasawa creek - Karamatsuzawa creek, Hakuba city, Kitaazumi county, Nagano pref.; Mount Ebiradake - Odokorogawa river, Otari city, Kitaazumi county, Nagano pref.

• Nakano et al. (2002) Geology of the Shiroumadake District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 105p. (in Japanese with English abstract 5p.)