Ogura Member

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Ogura Member

Type locality: Ogura, Awaji city, Hyogo prefecture
Coherent formation
Pliocene - Pleistocene
Correlation: Gunge Member, Tsushi Member

Sedimentary facies: Fluvial, Lacustrine
Paleo-river system: Same river as Gunge Member
Lithofacies: Gravels
Lithofacies (Upper, Minor): Silt, Clay, Sands
Sedimentary structures: Trough cross-stratification

Thickness: ca. 100 - 250 m
Upper limit: Conformity (Kuruma Member)
Lower limit: Conformity (Funagi Member, Asano Member)

Toshima Formation
[ Upper ]
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Ogura Member
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Funagi Member / Asano Member
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[ Lower ]

Osaka Group (north Awajishima, Hyogo pref.)
[ Upper ]
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Kariya Formation
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Toshima Formation
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[ Lower ]

Second Setouchi Supergroup (Osaka pref. - Hyogo pref.)
[ Upper ]
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Osaka Group
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[ Lower ]

[ Upper ]
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Second Setouchi Supergroup
?--?--?--?--?-
First Setouchi Supergroup
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[ Lower ]

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

Distribution: Ogura - Ezaki - Hirabayashi - Asano - Ikutahata - Kariya - Kamaguchi, Awaji city, Hyogo pref.

Takahashi et al. (1992) Geology of the Sumoto District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 107p. (in Japanese with English abstract 5p.)
Mizuno et al. (1990) Geology of the Akashi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 90p. (in Japanese with English abstract 5p.)