Nishikubiki Group

Coherent formation
Miocene - Pliocene

Lithofacies: Interbedded sandstone and mudstone

Thickness: 4,000 - 5,000 m
Upper limit: Conformity (Nadachi Formation)

Nishikubiki Group
[ Upper ]
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Kawazume Formation
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Nodani Formation
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Nanbayama Formation
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[ Lower ]

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

Distribution: Niigata pref.

Akahane and Kato (1989) Geology of the Takada-Seibu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 89p. (in Japanese with English abstract 3p.)