Upper Member

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Upper Member

Type locality: Jogetsutsumi, Higashimatsushima city - Imozawa - Kaigarazuka, Matsushima city, Miyagi county, Miyagi prefecture
Coherent formation
Miocene
Interfingered: Nemari Tuffaceous Sandstone Member

Lithofacies (Upper): Sandstone, Silty sandstone
Lithofacies (Upper, Minor): Tuff
Lithofacies (Middle): Sandstone
Lithofacies (Lower): Conglomerate, Sandstone
Sedimentary structures (Upper): Bioturbation
Sedimentary structures (Middle): Cross stratification, Parallel stratification
Sedimentary structures (Lower): Cross stratification

Thickness: 0 - ca. 110 m
Thickness (Lower): 15 m or thicker
Upper limit: Bottom of breccia or tuffaceous sandstone beds
Upper limit: Conformity (Shirasakayama Tuff Member)
Lower limit: Bottom of the coarse sandstone bed
Lower limit: Conformity (Lower Member), Abut unconformity (Oido Formation)

Mitsuya Formation (Naruse river)
[ Upper ]
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Upper Member / Nemari Tuffaceous Sandstone Member
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Lower Member
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[ Lower ]

Shida Group (Matsushima, Miyagi pref.)
[ Upper ]
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Omatsuzawa Formation
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Bangamoriyama Formation
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Kashimadai Formation
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Hataya Formation
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Mitsuya Formation
~~~~~~~~~~~~~~
Neko Formation
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[ Lower ]

Shida Group (Sendai, Miyagi pref.)
[ Upper ]
~~~~~~~~~~~~~~
Nanakita Formation
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Aoso Formation
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Bangamoriyama Formation
~~~~~~~~~~~~~~
Irisugaya Formation
?--?--?--?--?-
[ Lower ]

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

Distribution: Jogetsutsumi, Higashimatsushima city - Imozawa - Kaigarazuka, Matsushima city, Miyagi county, Miyagi pref.
Fossils: Shell fragments

Ishii et al. (1982) Geology of the Matsushima District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 121p. (in Japanese with English abstract 9p.)