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Mazegawa Formation

Slab in Kanayama Unit

• Type locality: Okukanayama, Kanayama town, Gero city, Gifu prefecture
• Accretionary complex
• Deposition (Siliceous mudstone): Late Jurassic (Radiolarians), Early Cretaceous (128 Ma, Rb-Sr)
• Accretion: Jurassic

• Sedimentary facies: Marine
• Lithofacies: Siliceous mudstone

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

• Distribution: Okukanayama, Kanayama town, Gero city, Gifu pref.

• Wakita and Koido (1994) Geology of the Gero District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 79p. (in Japanese with English abstract 5p.)