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Takuhiyama Pyroclastic Cone Chiba et al., 2000 ex Shikano et al., 1998
Invalid synonym: Benten Lava, Hashi Conglomerate, Takuhiyama Volcanic Rocks
- Type locality: Takuhi forest road - southern coast, Nishinoshima city, Oki county, Shimane prefecture
- Volcanic rocks
- Central cone
- late Miocene (5.4 Ma, K-Ar)
- Intruded in: Oyama Quartz Syenite
- Sedimentary facies (Minor): Subaqueous
- Sedimentary facies: Pyroclastic cone
- Sedimentary facies: Pyroclastic flow deposits, Pyroclastic surge deposits, Volcanic vent-fill deposits
- Sedimentary facies (Minor): Debris flow deposits, Turbidite, or High-density turbidite
- Lithofacies: Trachyte welded tuff, Tuff breccia
- Lithofacies: Trachyte tuff, Lapilli tuff, Volcanic conglomerate, Tuffaceous sandstone
- Sedimentary structures (Minor): Cross stratification, Parallel stratification, Bomb sag structure
- Dozen volcano
- [ Upper ]
- ~~~~~~~~~~~~~~
- Dike
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- Takuhiyama Pyroclastic Cone
- ~~~~~~~~~~~~~~
- Somma
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- [ Lower ]
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Mount Takuhiyama, Nishinoshima city, Oki county, Shimane pref.
- Chiba et al. (2000) Geology of the Urago District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 74p. (in Japanese with English abstract 3p.)