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Okinoshima Welded Tuff

• Volcanic rocks
• Cretaceous
• Intruded by: Okinoshima Body, Granite

• Sedimentary facies: Pyroclastic flow deposit
• Lithofacies: Hornfels
• Lithofacies: Rhyolitic dacite welded tuff

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Okinoshima island - Miyagahama, Okishima town, Omihachiman city, Shiga pref.; Shima town, Omihachiman city, Shiga pref.; Isakifudo temple, Shirao town, Omihachiman city, Shiga pref.

• Ishida et al. (1984) Geology of the Hikone-Seibu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 121p. (in Japanese with English abstract 6p.)