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Ushikiri-yama Granodiorite

Heat source of Sannotake skarn deposit

• Type locality: Fukuoka prefecture
• Plutonic rocks
• North body: Early Cretaceous (100.9 Ma, K-Ar)
• South body: Early Cretaceous (105.3 Ma, K-Ar)
• Intruded in: Aida Formation or Tsunemori Formation

• Lithofacies: Magnetite series
• Lithofacies (North body): Epidote-free hornblende-biotite granodiorite
• Lithofacies (South body): Epidote-bearing hornblende-biotite granodiorite

• Distribution (East-West): ca. 3 km
• Distribution (North-South): ca. 6 km

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

• Distribution: Kawara city - Fukuchi city, Tagawa county, Fukuoka pref.

• Eshima et al. (2019) Jour. Geol. Soc. Japan, vol.125, no.3, pp.237-253 DOI