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Tochibara Rhyolites

• Volcanic rocks
• Miocene (18.0, 15.5 Ma, K-Ar)
• Intruded in: Asakawa Formation

• Lithofacies: I-type, Calc-alkaline

• Distribution: Tochihara, Daigo city, Kuji county, Ibaraki pref.

• Tagiri et al. (2008) Jour. Geol. Soc. Japan, vol.114, no.6, pp.300-313 DOI