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Takanomine Formation Furukawa and Nagamori, 2018

Invalid synonym: Eboshiyama Andesite

• Type locality: Mount Takanomine - Mount Karasukiyama, Itoigawa city, Niigata prefecture
• Volcanic rocks
• early Pleistocene, Calabrian - middle Pleistocene (0.65 Ma, K-Ar)
• Contemporaneous heterotopic facies: Kajiyashiki Formation

• Sedimentary facies (Minor): Dykes
• Lithofacies: Andesite volcanic breccia, Tuff breccia

• Thickness: 200 - 350 m
• Lower limit: Unconformity, partly Interfingered (Kajiyashiki Formation), Unconformity (Sarukura Formation, Nechi Formation)

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

• Distribution: Mount Takanomine - Mount Karasukiyama - Omizogawa river, Itoigawa city, Niigata pref.

• Nagamori et al. (2018) Geology of the Itoigawa District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 75p. (in Japanese with English abstract 3p.)