Ishida Formation

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Ishida Formation

Accretionary complex
Jurassic
Contemporaneous heterotopic facies: Onogi Formation, lower Ibukiyama Limestone Formation

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

Lower limit: Conformity (Samegai Formation)

Mino Belt (Mount Ibuki, Shiga pref.)
[ Upper ]
/--/--/--/--/-
Ibukiyama Limestone Formation
/--/--/--/--/-
Onogi Formation
/--/--/--/--/-
Ishida Formation
/--/--/--/--/-
Samegai Formation
/--/--/--/--/-
Kiyotaki Formation
/--/--/--/--/-
[ Lower ]

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

Distribution: Tobakami - Jogi, Nagahama city, Shiga pref.; Godo, Maibara city, Shiga pref.

Isomi (1956) Ominagahama, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 51p. (in Japanese with English abstract 6p.)