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Omoriyama Formation

• Coherent formation
• Permian, Cisuralian - Guadalupian

• Sedimentary facies: Marine
• Lithofacies: Basalt lava, Pillow lava
• Lithofacies (Minor): Mudstone, Sandstone, Dolerite

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

• Distribution: Okayama pref.

• Sato et al. (2022) Geology of the Wake District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 106p. (in Japanese with English abstract 4p.)