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Basal tonalite

• Plutonic rocks
• Miocene (19 Ma, U-Pb)
• Intruded in: Lower Hidaka Metamorphic Rocks of granulite facies

• Lithofacies: Biotite-orthopyroxene-garnet tonalite

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

• Distribution: central Hokkaido

• Takahashi et al. (2018) Jour. Geol. Soc. Japan, vol.124, no.6, pp.399-411 DOI