Ohara Formation

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Ohara Formation Uemura et al., 1979

High P/T metamorphic rocks
Metamorphism: early Carboniferous - Late Jurassic
Correlation: Shitani Formation?

Metamorphic facies: Pumpellyite-Actinolite
Lithofacies (Upper): Basaltic rocks
Lithofacies (Lower): Pelitic schist

Thickness: 500 m or thicker
Upper limit: Conformity (Chizu Formation)

Sangun Metamorphic Belt (Ohara, Okayama pref.)
[ Upper ]
/--/--/--/--/-
Hatto Formation
--------------
Chizu Formation
--------------
Ohara Formation
/--/--/--/--/-
[ Lower ]

Distribution: Okayama pref.

Uemura et al. (1979) Geology of the Wakasa District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 91p. (in Japanese with English abstract 8p.)