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Mineyama Formation Yamamoto et al., 2002
- Type locality: Kuroiwadaki fall, Okawachi, Kamikawa city, Kanzaki county, Hyogo prefecture
- Volcanic rocks
- Large scale caldera-fill deposit
- Late Cretaceous (64.9 Ma, K-Ar)
- Intruded by: Sakanotsujitoge Body, Tonominekogen Body, Dacite dikes
- Sedimentary facies: Dacite pyroclastic flow deposits
- Sedimentary facies (Minor): Debris avalanche deposits
- Lithofacies: Hornblende dacite welded lapilli tuff, Tuff breccia
- Lithofacies (Minor): Breccia
- Sedimentary structures: Columnar joints
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Mineyama kogen - Fukuchigawa river - Mount Hiraishiyama - Minamioda, Okawachi, Kamikawa city, Kanzaki county, Hyogo pref.
- Yamamoto et al. (2002) Geology of the Yamasaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 48p. (in Japanese with English abstract 4p.)