Ichinose Formation

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Ichinose Formation

Type locality: Tarakyo valley, Kawahigashi (Ichinose) - Higashiyama, Ogaki city, Gifu prefecture
Accretionary complex
Jurassic
Correlation: Ozuchi Formation

Sedimentary facies: Marine
Lithofacies: Chert, Slate
Lithofacies (Minor): Sandstone

Thickness: ca. 1,800 m
Upper limit: Conformity (Maegase Formation, Hokusenanno Formation)
Lower limit: Conformity (Ryusenji Formation)

Yoro Group
[ Upper ]
/--/--/--/--/-
Hokusenanno Formation
--------------
Ichinose Formation
--------------
Ryusenji Formation
/--/--/--/--/-
[ Lower ]

Makitagawa Group
[ Upper ]
/--/--/--/--/-
Maegase Formation
--------------
Ichinose Formation
/--/--/--/--/-
[ Lower ]

Mino Belt (Yoro, GIfu pref.)
[ Upper ]
/--/--/--/--/-
Yoro Group
/--/--/--/--/-
[ Lower ]

Mino Belt (Makitagawa river, Gifu pref.)
[ Upper ]
/--/--/--/--/-
Makitagawa Group
/--/--/--/--/-
[ Lower ]

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

Distribution: Tarakyo valley, Kawahigashi (Ichinose) - Higashiyama - Obora - Maegase, Ogaki city, Gifu pref.; Tokuda, Nanno town, Kaizu city, Gifu pref.; Sakosadani valley, Yoro city, Yoro county, Gifu pref.

Yoshida et al. (1991) Geology of the Kuwana District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 154p. (in Japanese with English abstract 5p.)
Takada et al. (1979) Geology of the Tsushima District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 56p. (in Japanese with English abstract 5p.)
Miyamura et al. (1976) Geology of the Hikonetobu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 49p. (in Japanese with English abstract 6p.)