[ Top ] [ Japanese ]

Tana Formation

• Type locality: Iheya island, Okinawa prefecture
• Accretionary complex
• Accretion: Middle Jurassic
• Deposition (Chert): Permian (Radiolarians)
• Deposition (Mudstone): Early - Middle Jurassic (Radiolarians)

• Sedimentary facies: Marine
• Lithofacies: Mélange facies
• Matrix: Pelitic rocks
• Exotic blocks (Crusts): Interbedded sandstone and mudstone, Greenstone, Limestone, Chert, Sandstone

• Upper limit: Thrust fault
• Lower limit: Thrust fault

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

• Distribution: Iheya island, Okinawa pref.
• Fossils: Radiolarians

• Miyagi et al. (2013) Jour. Geol. Soc. Japan, vol.119, no.10, pp.665-678 DOI