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Iwaki Member

• Type locality: Iwaki - Kaji, Kamigori city, Ako county, Hyogo prefecture
• Volcanic rocks
• Late Cretaceous

• Sedimentary facies: Lacustrine
• Lithofacies: Tuff, Tuff breccia, Volcanic breccia, Shale, Sandstone
• Lithofacies (Minor): Conglomerate

• Thickness: ca. 110 - 300 m
• Lower limit: Unconformity (Ominamiike Member)

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

• Distribution: Iwaki - Kaji - Chigusagawa river - Mount Atagoyama - Hosono, Kamigori city, Ako county, Hyogo pref.

• Igi and Wadatsumi (1980) Geology of the Kamigori District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 74p. (in Japanese with English abstract 4p.)