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Tokiwayama Serpentine Mélange

Unit structures need to be revised by further investigation.

• Type locality: Hokkaido
• Tectonic block: High P/T metamorphic rocks (0.7 - 1.0 GPa, 250 - 300 degree C)
• Metamorphism (Tectonic block): Early Cretaceous (123 - 133 Ma, K-Ar)

• Metamorphic facies (Tectonic block): Blueschist
• Lithofacies: Blueschist, Greenschist, Siliceous schist, Pelitic schist, Jadeite-quartz rock

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

• Distribution: Kamuikotan valley, Asahikawa city, Hokkaido

• Sakakibara et al. (2007) Jour. Geol. Soc. Japan, vol.113, Supplement, pp.103-118 DOI