Sekidosan Conglomerate Member

Sekidosan Conglomerate Member (Kubo and Suzuki, 1950)

Invalid synonym: lower Taniguchi Formation

Coherent formation
Miocene
Correlation: Takabatake Conglomerate Member

Sedimentary facies: Marine
Lithofacies: Conglomerate, Sandstone
Lithofacies (Minor): Siltstone
Sedimentary structures: Cross stratification

Thickness: several - 300 m
Upper limit: Transitional (Kakefuda Sandstone Member)
Lower limit: Unconformity (Anamizu Formation)

Yatsuo Group (Nadaura, Toyama pref.)
[ Upper ]
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Nakanami Mudstone Member
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Kakefuda Sandstone Member
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Sekidosan Conglomerate Member
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[ Lower ]

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

Distribution: Mount Sekidosan - Nadaura - Isobe - Totsumiya, Himi city, Toyama pref.
Fossils: Brachiopods (Terebratulina japonica), Ooal
Fossils (Shellfishes): Batillaria? sp., Chlamys cf. akitana, Crassalellites sp., Fusinus? sp., Ostrea sp.

Imai et al. (1966) Geology of the Ochigata and Abugashima District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 67p. (in Japanese with English abstract 4p.)