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Oshirabetsu Plutonic Complex Shimura et al., 2019

Synonym: Oshirabetsu Body, Oshirabetsu gabbroic mass, Oshirabetsu gabbroic complex

• Plutonic rocks
• Oligocene (36.0, 35.3 Ma, K-Ar; 37.2, 37.8 Ma, U-Pb)

• Lithofacies: Biotite granodiorite, Hornblende diorite, Olivine norite

• Distribution (East-West): ca. 10 km
• Distribution (South-North): ca. 10 km

------ Transitional, ~~~~~~ Intrusive, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Hiroo bridge, Hiroo city, Hiroo county - Shono, Erimo city, Horoizumi county, Hokkaido

• Shimura et al. (2019) Jour. Geol. Soc. Japan, vol.125, no.2, pp.195-200 DOI
• Takahashi et al. (2018) Jour. Geol. Soc. Japan, vol.124, no.6, pp.399-411 DOI
• Osanai et al. (2007) Jour. Geol. Soc. Japan, vol.113, Supplement, pp.29-50 DOI