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Takamatsuyama Rhyolite

• Type locality: Mount Takamatsuyama, Hiruzen, Maniwa city, Okayama prefecture
• Volcanic rocks
• Pliocene

• Lithofacies: Biotite rhyolite

• Thickness: 100 m or thicker
• Lower limit: Unconformity (Biotite granite, Granophyre, Granite porphyry)

• Distribution: Mount Takamatsuyama - Mount Hotokegasen, Hiruzen, Maniwa city, Okayama pref.

• Ota (1962) Yumoto, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 29p. (in Japanese with English abstract 3p.)
• Yamada (1961) Okutsu, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 51p. (in Japanese with English abstract 9p.)