Upper Member

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Upper Member

Probably same as Ouchi Formation.

Type locality: Tabe, Marumori city, Igu county, Miyagi prefecture
Coherent formation
early Miocene

Sedimentary facies: Brackish
Lithofacies: Sandstone, Siltstone, Tuff
Lithofacies (Minor): Conglomerate, Lignite

Thickness: ca. 120 m
Upper limit: Top of Shimizu Tuff
Upper limit: Conformity (Shimizu Tuff, Hazama Formation, Yoshigasawa Formation)
Lower limit: Top of Kanazu Tuff
Lower limit: Conformity (Kanazu Tuff, Lower Member of Kaneyama Formation, Tenmyosan Volcanic Rocks)

Upper Member
[ Upper ]
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Shimizu Tuff
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Main part
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[ Lower ]

Kaneyama Formation
[ Upper ]
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Upper Member
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Lower Member
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[ Lower ]

Kakuda, Miyagi pref.
[ Upper ]
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Yoshigasawa Formation
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Hazama Formation
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Kaneyama Formation
'''''''/,,,,,,
Tenmyosan Volcanic Rocks
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Shiote Formation
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[ Lower ]

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

Distribution: Tabe - Aoba - Myokozawa - Sano - Onigasaku, Marumori city, Igu county, Miyagi pref.
Fossils: Shellfishes, Silicified woods
Fossils (Correated to Daijima-type flora): Comptonia naumanni, Doryophyllum sp., Liquidambar formoana, Sequoia sempervirence, Trapa yokoyamai
Tephra: Shimizu Tuff

Fujita et al. (1988) Geology of the Kakuda District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 99p. (in Japanese with English abstract 9p.)