Unit 1

Type locality: Kitadaito island, Kitadaito city, Shimajiri county, Okinawa prefecture
Coherent formation
Oceanic island sediments
Pleistocene

Sedimentary facies: Marine
Lithofacies: Framestone (rich in corals)

Daito Formation
[ Upper ]
~~~~~~~~~~~~~~
Unit 3
~~~~~~~~~~~~~~
Unit 2
~~~~~~~~~~~~~~
Unit 1
?--?--?--?--?-
[ Lower ]

Kitadaito island
[ Upper ]
+__+__+__+__+__
Kaigunbo Formation
~~~~~~~~~~~~~~
Daito Formation
?--?--?--?--?-
[ Lower ]

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

Distribution: Central basin of Kitadaito island, Kitadaito city, Shimajiri county, Okinawa pref.

Takayanagi et al. (2010) Jour. Geol. Soc. Japan, vol.116, no.4, pp.237-240 DOI