[ Top ] [ Japanese ]

Nishoishi Rhyolite

• Type locality: Nishoishi, Iwaizumi city, Shimohei county, Iwate prefecture
• Volcanic rocks
• Eocene (ca. 40 Ma)
• Intruded in: Matsuhashi Formation (Pre-Cretaceous)

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

• Distribution (Diameter): ca. 1 km

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

• Distribution: Omoto river, Nishoishi, Iwaizumi city, Shimohei county, Iwate pref.

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