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Tatsumarutoge Rhyolite

• Type locality: Tatsumaru pass, Miyako city, Iwate prefecture
• Volcanic rocks
• Eocene (ca. 40 Ma)
• Intruded in: Koguro Formation, Yakushigawa Formation

• Lithofacies: I-type
• Lithofacies: Adakitic
• Lithofacies: Rhyolite

• Distribution (Width): ca. 0.8 km
• Distribution (Length): ca. 1.4 km

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

• Distribution: Tatsumaru pass, Miyako city, Iwate pref.

• Tsuchiya et al. (2008) Jour. Geol. Soc. Japan, vol.114, Supplement, pp.159-179 DOI