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Sawada Formation Hayashi et al., 2017

Invalid synonym: Upper Formation

• Type locality: Sawada, Sasayama city, Hyogo prefecture
• Coherent formation
• Intermountain basin
• Late Cretaceous (109, 100 Ma, K-Ar)

• Sedimentary facies: Fluvial
• Sedimentary facies: Meandering river
• Sedimentary facies: Flood plain
• Lithofacies (Upper): Mudstone, Sandstone
• Lithofacies (Main): Amphibole andesitic pyroclastic rocks (Lapilli tuff, Tuff breccia, Tuff), Conglomerate, Tuffaceous sandstone

• Thickness: 200 m or thicker
• Upper limit: Unconformity (Arima Group)
• Lower limit: Litholofacies boundary (Extinction of andesitic pyroclastic rocks)

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

• Distribution: Sasayama basin, Sasayama city, Hyogo pref.
• Fossils: Estherids (Nemestheria aidesis), Plants

• Hayashi et al. (2017) Jour. Geol. Soc. Japan, vol.123, no.9, pp.747-764 DOI
• Kobayashi and Goto (2008) Jour. Geol. Soc. Japan, vol.114, no.11, pp.577-586 DOI