Kawakado Formation

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Kawakado Formation

Coherent formation
early Miocene (18.8 - 17.5 Ma, Paleomagnetic)

Sedimentary facies: Marine
Sedimentary facies: Inner bay (Shellfishes)
Depth of water: Tidal zone - 20 m (Shellfishes)
Lithofacies: Sandstone
Lithofacies (Minor): Interbedded sandstone and mudstone, Mudstone
Sedimentary structures: Graded bedding, Rip-up clasts

Thickness: ca. 75 m
Upper limit: Conformity (Ohno Formation)
Lower limit: Conformity (Taguchi Formation), Unconformity (Ryoke Belt)

Hokusetsu Subgroup
[ Upper ]
~~~~~~~~~~~~~~
Kadoya Formation
--------------
Ohno Formation
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Kawakado Formation
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Taguchi Formation
~~~~~~~~~~~~~~
[ Lower ]

Shitara Group
[ Upper ]
?--?--?--?--?-
Nansetsu Subgroup (Shitara Volcanic Rocks)
~~~~~~~~~~~~~~
Hokusetsu Subgroup
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Taguchi, Shitara city, Kitashitara county, Aichi pref.; Ebi - Kuroze, Shinjo city, Aichi pref.; Midono river, Toei city, Kitashitara county, Aichi pref.

Hoshi and Ogawa (2012) Jour. Geol. Soc. Japan, vol.118, no.11, pp.748-761 DOI
Hoshi and Saida (2009) Jour. Geol. Soc. Japan, vol.115, no.5, pp.193-205 DOI