Hiyamizu facies

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Hiyamizu facies

Type locality: south of Shimotashiro - Sunagomata, Higashidori city, Shimokita county, Aomori prefecture
Coherent formation
middle Miocene - Pliocene

Sedimentary facies: Shallow marine
Lithofacies: Andesitic agglomerate, Tuff breccia, Lava
Lithofacies (Minor): Tuffaceous sandstone, Mudstone

Thickness: 1,600 m or thinner

Tomari Formation
[ North ]
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Sarugamori facies = Sarugamori Formation
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Tashiro facies
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Hiyamizu facies
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[ South ]

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

Distribution: Shijimi creek - Okunai river, Higashidori city, Shimokita county, Aomori pref.
Fossils (Bivalves): Lora sp., Patinopecten kimurai, Nuculana sp., Tellina sp.
Fossils: Plants

Imai (1961) Chikagawa, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 45p. (in Japanese with English abstract 4p.)