Ishiji Sandstone

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Ishiji Sandstone (Kurokawa et al., 1992)

Invalid synonym: Omachi Sandstone

Coherent formation
late Miocene - early Pliocene

Sedimentary facies: Marine
Lithofacies: Pyroclastic sandstone

Thickness: ca. 4.5 m
Lower limit: Conformity (Teradomari)

Shiiya Formation
[ Upper ]
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Shiiya Sandstone
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Ishiji Sandstone and Mudstone Alternation
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Ishiji Sandstone
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[ Lower ]

Niigata plain - Takada plain, Niigata pref.
[ Upper ]
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Haizume Formation
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Nishiyama Formation
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Shiiya Formation
'''''''/,,,,,,
Teradomari Formation
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[ Lower ]

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

Distribution: Ishiji - Omachi, Nishiyama town, Kashiwazaki city, Niigata pref.

Kobayashi et al. (1993) Geology of the Izumozaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 91p. (in Japanese with English abstract 4p.)