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Saruhashi Conglomerate Member Morishima, 1941

Invalid synonym: Saruhashi Formation

• Type locality: Saruhashi, Myoko city, Niigata prefecture
• Coherent formation
• early Pleistocene
• Correlation: middle Uonuma Formation

• Sedimentary facies: Fluvial
• Sedimentary facies: Braided river
• Lithofacies: Conglomerate
• Lithofacies (Minor): Sandstone, Siltstone
• Sedimentary structures: Imbrication, Cross stratification

• Thickness: 160 - 450 m or thicker
• Upper limit: Unconformity (Konigori Formation, Higher Terrace Deposit)
• Lower limit: Conformity (Naradate Formation), Unconformity (Sugawa Formation)

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

• Distribution: Saruhashi - Sekikawa river - Doro, Myoko city, Niigata pref.; Iguizawa, Itakura ward, Joetsu city, Niigata pref.
• Fossils: Plants

• Yanagisawa et al. (2000) Geology of the Iiyama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 144p. (in Japanese with English abstract 6p.)
• Takeuchi and Kato (1994) Geology of the Takada-tobu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 67p. (in Japanese with English abstract 5p.)