Minatogawa Formation

Minatogawa Formation (Flint et al., 1959) Nakamori, 1986

Invalid synonym: Machinato Limestone, Minatogawa Limestone, Awaishi Limestone

Type locality: Minatogawa, Yaese city, Shimajiri county, Okinawa prefecture
Coherent formation
Coral reef complex
Pleistocene

Sedimentary facies: Marine
Depth of water: Lagoon (5 m or shallower), or Upper forereef slope
Lithofacies (Main): Detrital limestone
Lithofacies (Minor): Coral limestone, Calcareous conglomerate

Upper limit: Unconformity
Lower limit: Unconformity

Ryukyu Group (Itoman - Yaese, Okinawa pref.)
[ Upper ]
~~~~~~~~~~~~~~
Minatogawa Formation
~~~~~~~~~~~~~~
Naha Formation
~~~~~~~'''/,,,
Itoman Formation
?--?--?--?--?-
[ Lower ]

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

Distribution: Itoman city - Yaese city - Nanjo city - Uruma city, Okinawa pref.
Distribution: Minatogawa - Cape Kyan - Komesu seashore - Gushikami - Nagamo, Yaese city, Shimajiri county, Okinawa pref.
Fossils: Foraminifera, Coraline algae, Corals

Sagae et al. (2012) Jour. Geol. Soc. Japan, vol.118, no.2, pp.117-136 DOI