Waraguchi Formation

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Waraguchi Formation

Type locality: Waraguchi pass, Oishida city, Kitamurayama county, Yamagata prefecture
Coherent formation
Pliocene

Lithofacies: Sandstone

Thickness: 150 - 170 m
Lower limit: Transitional (Obayashi Formation)

Shinjo Group
[ Upper ]
~~~~~~~~~~~~~~
Oriwatari Formation
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Waraguchi Formation
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Obayashi Formation
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[ Lower ]

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

Distribution: Waraguchi pass, Oishida city, Kitamurayama county, Yamagata pref.
Fossils (Shellfishes): Anadara cfr. ninohensis, Dosinia kanehara, Laevicardium shiobarense, Mya sp., Protothaca tateiwai

Tokunaga (1958) Obanazawa, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 32p. (in Japanese with English abstract 6p.)