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Pankehoronai Unit

Unit structures need to be revised by further investigation.

• Type locality: Hokkaido
• High P/T metamorphic rocks (0.5 GPa, 300 - 400 degree C)
• Protolith: Sorachi oceanic plateau in Panthalassa Ocean
• Protolith: Accretionary complex
• Deposition: Early Cretaceous (115 Ma, U-Pb)
• Metamorphism: Neogene (ca. 58 Ma, K-Ar)

• Metamorphic facies: Pumpellyite-Actinolite facies, High temperature part
• Lithofacies (East): Pelitic schist
• Lithofacies (East, Minor): Meta-mafic rocks
• Lithofacies (West): Meta-mafic rocks
• Lithofacies (West, Minor): Pelitic schist, Siliceous schist
• Lithofacies (Minor): Calcareous schist
• Lithofacies (Protolith, Meta-mafic rocks): Clastic rocks
• Lithofacies (Protolith, Meta-mafic rocks, Minor): Basalt, Hyaloclastite

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

• Distribution: Kamuikotan valley, Asahikawa city, Hokkaido

• Takeshita et al. (2018) Jour. Geol. Soc. Japan, vol.124, no.7, pp.491-515 DOI
• Takahashi et al. (2018) Jour. Geol. Soc. Japan, vol.124, no.6, pp.399-411 DOI
• Sakakibara et al. (2007) Jour. Geol. Soc. Japan, vol.113, Supplement, pp.103-118 DOI