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Kongodo Formation

• Collision type metamorphism by the subduction of Yangtze plate under Sino-Korea plate
• Intermediate metamorphic rocks
• Metamorphism: middle Permian - Middle Triassic
• Intruded by: Mizunashi Granite
• Correlation: Koshirakimine Formation

• Lithofacies: Biotite gneiss
• Lithofacies (Minor): Sillimanite garnet biotite gneiss, Hornblende gneiss, Clinopyroxene gneiss, Limestone

• Upper limit: Transitional (Mizunashi Formation), Conformity (Nishinomata Formation, Koshirakimine Formation), Unconformity (Naratoge Formation)

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

• Distribution: Mount Kongodozan - Nishinosetodani valley, Toyama city, Toyama pref.

• Nozawa et al. (1981) Geology of the Shirokimine District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 85p. (in Japanese with English abstract 10p.)