Mitsumenaigawa Formation

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Mitsumenaigawa Formation

Accretionary complex
Deposition (Mudstone): Early Jurassic (Radiolarians)

Sedimentary facies: Marine
Lithofacies: Mudstone
Lithofacies (Minor): Sandstone, Chert, Greenstones

Kuzumaki - Kamaishi Sub-belt (South Hirosaki, Aomori pref.)
[ Upper ]
/--/--/--/--/-
Owasawagawa Formation
?--?--?--?--?-
Nishimatayama Formation
?--?--?--?--?-
Mitsumenaigawa Formation
/--/--/--/--/-
[ Lower ]

North Kitakami Belt
[ Upper ]
/--/--/--/--/-
Kuzumaki - Kamaishi Sub-belt
/--/--/--/--/-
Akka - Tanohata Sub-belt
/--/--/--/--/-
[ Lower ]

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

Distribution: Owasawa creek, Hirosaki city, Aomori pref.; Mitsumenai, Owani city, Minamitsugaru county, Aomori pref.
Fossils (Radiolarians): Natoba minuta, Canoptum sp., Parahsuum sp.

Ueda et al., (2009) Jour. Geol. Soc. Japan, vol.115, no.11, pp.610-613 DOI