Mushizaki Mudstone Member

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Mushizaki Mudstone Member

Coherent formation
Miocene
Correlation: lower Otogawa Formation, Entsunagi Mudstone Member, Wakura Mudstone Member

Sedimentary facies: Marine
Lithofacies: Mudstone
Lithofacies (Minor): Sandstone

Thickness: 50 - 250 m
Upper limit: Transitional (Akasaki Siltstone Member)
Lower limit: Parallel unconformity (Akaura Sandstone Member), Unconformity (Tane Alternation Member, Anamizu Formation)

Otogawa Formation (Sakiyama peninsula, Ishikwa pref.)
[ Upper ]
--------------
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: Mushizaki - Onogi town - Matsuo - Higashihama, Nanao city, Ishikawa pref.
Fossils: Echinoids (Fragments), 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.)