Akasaki Siltstone Member

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Akasaki Siltstone Member

Coherent formation
Miocene
Correlation: Futaana Siltstone Member

Sedimentary facies: Marine
Lithofacies: Siltstone
Lithofacies (Minor): Tuff, Marl

Thickness: 120 - 220 m
Upper limit: Conformity (Sakiyama Siltstone Member)
Lower limit: Transitional (Mushizaki Siltstone Member)

Otogawa Formation (Sakiyama peninsula, Ishikwa pref.)
[ Upper ]
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Akasaki Siltstone Member
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Mushizaki Mudstone Member
~~~~~~~~~~~~~~
[ Lower ]

Tonami Group
[ Upper ]
~~~~~~~~~~~~~~
Mita Formation
~~~~~~~~~~~~~~
Otogawa Formation
~~~~~~~~~~~~~~
Tenguyama Formation
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Takinoshiri - northern Sakiyama peninsula, Nanao city, Ishikawa pref.
Fossils: Sponges (Makiyama sp.)

Imai (1965) Koguchiseto, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 26p. (in Japanese with English abstract 4p.)