Omine Mudstone Member

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Omine Mudstone Member

Coherent formation
early - late Miocene

Sedimentary facies: Marine
Lithofacies: Tuffaceous sandy mudstone
Lithofacies (Minor): Tuff

Thickness: 30 - 150 m
Upper limit: Transitional (Kurahara Sandstone Member)

Yatsuo Group (Iozen, Ishikawa pref. - Toyama pref.)
[ Upper ]
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Omine Mudstone Member
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Doyama Tuffaceous Member
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Sunagozaka Formation
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Iozen Formation
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[ Lower ]

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

Distribution: Toyama pref.
Fossils (Shellfishes): Coraeophos iwakianus, Dosinia kaneharai, Lepiothyra kurodai, Lucinoma acutilineatum, Mya cuneiformis, Nucula nipponica, Olivella fortunei, Phaxas izumoensis, Surculites yokoyamai, Venericardia ferruginea
Fossils (Foraminifera): Angulogerina cfr. kokozuraensis, Buccella makiyamae, Buccella marginata adelaidena, Cassidulina margreta

Inoue et al. (1964) Johana, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 32p. (in Japanese with English abstract 5p.)