Toshima Formation

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Toshima Formation

Coherent formation
Pliocene - Pleistocene
Correlation (Lower): Lower Most part

Sedimentary facies: Fluvial, Lacustrine
Lithofacies: Gravels
Lithofacies (Minor): Silt, Clay, Sands

Upper limit: Conformity (Kariya Formation)

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

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

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

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

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

Distribution: Hokutan town - Higashiura, Awaji city, Hyogo pref.

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.)