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Yoshihama type

• Plutonic rocks
• Early Cretaceous
• Intruded by: Okuboyama type, Kuroiwa type
• Intruded in: Gabbroic rocks, Kamaishi Formation, Ryori Formation

• Lithofacies: Biotite hornblende granodiorite, Tonalite
• Lithofacies (Minor): Hornblende biotite monzogranite, Hornblende biotite granodiorite, Biotite hornblende tonalite

• Distribution (East-West): ca. 20 km
• Distribution (South-North): ca. 24 km

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

• Distribution: Mount Goyozan, Kamaishi city, Kunohe county, Iwate pref.
• Deposit: Lithium pegmatite (Sakihama)

• Nishioka and Yoshikawa (2004) Geology of the Ryori District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 49p. (in Japanese with English abstract 3p.)