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Kizaki Rhyolite (Tomita, 1928) Ishizawa, 1982 ( Photo )

Invalid synonym: Kizakiite, Kurosawa Rhyolite

• Type locality: Lake Kizaki, Mori, Taira, Omachi city, Nagano prefecture
• Volcanic rocks
• Volcano-plutonic complex
• Late Cretaceous
• Intruded by: Ariake Granite
• Intruded in: Okumayama Granodiorite

• Metamorphic facies: Contact (Ariake Granite, Aoki Granite)
• Lithofacies: Ilmenite series
• Lithofacies: Pyroclastic flow
• Lithofacies: Rhyolite welded tuff (3 flow units)

• Upper limit: Unconformity (Sanozaka Collapse Deposits)

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

• Distribution: Lake Kizaki - Lake Nakatsuna - Kurosawa creek - Mount Hatomine - Wade, Omachi city, Nagano pref.: Zara pass, Tateyama city, Nakaniikawa county, Toyama pref.

• Ueki and Harayama (2012) Jour. Geol. Soc. Japan, vol.118, no.4, pp.207-219 DOI
• Harayama et al. (2000) Geology of the Tateyama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 218p. (in Japanese with English abstract 6p.)
• Kato et al. (1989) Geology of the Omachi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 111p. (in Japanese with English abstract 7p.)