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Yugamine Dacite

• Volcanic rocks
• Felsic monogenetic volcanoes
• middle Pleistocene (0.5 Ma, K-Ar)

• Lithofacies (Top): Vitreous dacite
• Lithofacies: Biotite dacite lava
• Lithofacies (Bottom): Interbedded gravels and dacitic tuff

• Thickness (Top): ca. 5 m
• Thickness: 30 m
• Thickness (Basal): ca. 4 m
• Lower limit: Unconformity (Nohi Rhyolites)

• Distribution: Mount Yugamine, 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.)
• Yamada (1961) Kashimo, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 25p. (in Japanese with English abstract 7p.)