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Kitanohara Lava Hattori et al., 1983

Invalid synonym: Chojabara Tuff Breccia

• Type locality: Yubigakinomyogoseki - Lake Himenogaike - Tateishi, Sanbe town, Oda city, Shimane prefecture
• Volcanic rocks
• Pleistocene

• Sedimentary facies: High viscosity massive lava flow
• Lithofacies: Hornblende biotite dacite tuff breccia, Volcanic breccia

• Source: central part of Sanbe caldera
• Lower limit: Unconformity (Moritayama Lava)

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

• Distribution: Yubigakinomyogoseki - Lake Himenogaike - Tateishi - Tenjogahara - Mount Moritayama, Sanbe town, Oda city, Shimane pref.

• Hattori et al. (1983) Geology of the Sambesan District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 168p. (in Japanese with English abstract 7p.)