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Sumatagawa Group Kano 1986

Invalid synonym: Hirogochi Formation

• Accretionary complex
• Deposition: Late Cretaceous, Campanian - Maastrichitian (Radiolarians)
• Accretion: Neogene

• Sedimentary facies: Marine
• Sedimentary facies: Trench-fill deposit, Landward slope deposit
• Sedimentary facies: Turbidite
• Lithofacies: Coherent facies
• Lithofacies: Interbedded sandstone and shale
• Lithofacies (Minor): Sandstone, Shale, Tuff

• Distribution (Width): ca. 15 km

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

• Distribution: Mount Kuroboshigatake - Mount Daimugenzan, Shizuoka pref.; Tashiro dam - Hatanagi - Sumatagawa river, Aoi ward, Shizuoka city, Shizuoka pref.; Mount Sobatsubuyama, Hamamatsu city - Kawanehoncho city, Shizuoka pref.; Ketagawa river, Hamamatsu city, Shizuoka pref.; Nikengoya - Dentsuku pass, Hayakawa city, Minamikoma county, Yamanashi pref.

• Ozaki and Sugiyama (2018) Geology of the Minobu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 169p. (in Japanese with English abstract 7p.)
• Tokiwa et al. (2018) Jour. Geol. Soc. Japan, vol.124, no.7, pp.539-544 DOI