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Okayatani Granodiorite Porphyry

• Intrusive rocks
• Cretaceous - Paleogene
• Intruded in: Higashimata-Funayama Welded Tuff, Osaka Pyroclstic Rocks

• Lithofacies: Hornblende biotite granodiorite porphyry

• Distribution (Diameter): ca. 2 km

• Distribution: Okayatani valley, Osakagawa river, Osaka town, Gero city, Gifu pref.

• Yamada and Kobayashi (1988) Geology of the Ontakesan District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 136p. (in Japanese with English abstract 9p.)