Okadashimo Formation

[ Top ] [ Japanese ]

Okadashimo Formation

Coherent formation
Triassic

Sedimentary facies: Marine
Lithofacies: Interbedded shale and sandstone
Lithofacies (Basal): Conglomerate

Thickness: 250 m or thicker

Shidaka Group
[ Upper ]
/--/--/--/--/-
Shidaka Formation
--------------
Okadashimo Formation
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Fumuro Formation
--------------
Hannyaji Formation
~~~~~~~~~~~~~~
[ Lower ]

North zone
[ Upper ]
/--/--/--/--/-
Shidaka Group
~~~~~~~~~~~~~~
Maizuru Granite
/--/--/--/--/-
Maizuru Metamorphic Rocks
/--/--/--/--/-
[ Lower ]

Maizuru Belt
[ North ]
/--/--/--/--/-
North zone
/--/--/--/--/-
Central zone
/--/--/--/--/-
South zone
/--/--/--/--/-
[ South ]

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

Distribution: Okadashimo, Maizuru city, Kyoto pref.
Fossils Michelioceras sp.
Fosslis (Shellfishes): Bakevellia cf. kambei, Entolium sp., Neoschizodus cf. laevigatus, Nuculana sp., Palaeoneilo sp.,

Igi and Kuroda (1965) Oeyama, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 81p. (in Japanese with English abstract 12p.)