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Tenneru Formation

• Coherent formation
• Middle Eocene (39.1 Ma)
• Correlation: Upper Rushin Formation

• Sedimentary facies: Braided river in a plain at the downstream of a lacustrine delta
• Lithofacies (Main): Conglomerate, Pebbly sandstone
• Lithofacies (Minor): Sandstone, Siltstone, Coal
• Sedimentary structures: Trough cross-stratification, Planar cross-stratification, Graded-bedding

• Upper limit: Lithofacies boundary
• Lower limit: Lithofacies boundary

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

• Distribution: Kushiro seashore (Horonai - Todo-iwa, Kokomanai seashore), Kushiro city, Hokkaido

• Katagiri et al. (2016) Jour. Geol. Soc. Japan, vol.122, no.9, pp.495-503, DOI