Nakakoshiki Formation

Coherent formation
Eocene?
Correlation: Akasaki Formation

Sedimentary facies: Fluvial
Lithofacies: Conglomerate, Sandstone, Mudstone

Thickness: 1,100 m

Kamikoshikijima Group
[ Upper ]
?--?--?--?--?-
Segami Formation
--------------
Ojima Formation
--------------
Nakakoshiki Formation
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Nakakoshikijima island, Koshikijima islands, Satsumasendai city, Kagoshima pref.
Fossils: Herbivorous animals

Tonai et al. (2008) Jour. Geol. Soc. Japan, vol.114, no.11, pp.547-559 DOI