Miharaiyama Group

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Miharaiyama Group

Coherent formation
Triassic
Correlation: Yakuno Group, Hirotani Formation

Sedimentary facies: Marine
Lithofacies: Conglomerate, Sandstone
Lithofacies (Minor): Slate

Lower limit: Unconformity (Oya Formation)

Central zone (Yabu, Hyogo pref.)
[ Upper ]
/--/--/--/--/-
Miharaiyama Group
/--/--/--/--/-
[ Lower ]

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

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

Distribution: Itohara - Tano - Iwai - Mount Miharaiyama, Yabu city, Hyogo pref.
Fossils: Gastropods, Gervilleia sp., Myophoria sp., Nucula sp.

Hirokawa (1954) Oyaichiba, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 31p. (in Japanese with English abstract 10p.)