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Tsukuhara Formation

• Volcanic rocks
• Late Cretaceous
• Correlation: Tamaze Formation

• Sedimentary facies: Subaqueous
• Lithofacies: Tuffaceous mudstone, Sandy tuff, Conglomerate

• Thickness: ca. 10 - 20 m
• Upper limit: Transitional (Tanjosan Tuff Breccia)
• Lower limit: Unconformity (Tamaze Formation, Tamba Belt)

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

• Distribution: Tsukuhara, Yamada town, Kita ward, Kobe city, Hyogo pref.

• Kurimoto et al. (1993) Geology of the Sasayama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 93p. (in Japanese with English abstract 5p.)
• Huzita and Kasama (1983) Geology of the Kobe District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 115p. (in Japanese with English abstract 8p.)