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Tsunako Conglomerate Member Kaneko, 1944

• Type locality: Nakanomata river, Shimotsunako - Nakanomata, Joetsu city, Niigata prefecture
• Coherent formation
• Rift basin sediments
• Pliocene
• Interfingered: Iwaobashi Sandstone Member, Doguchi Alternation of Sandstone and Mudstone Member, Tsutsuishi Alternation of Sandstone and Mudstone Member, Nagahama Mudstone Member

• Sedimentary facies: Marine
• Sedimentary facies: Submarine fan
• Sedimentary facies: Channel-fill deposit at the upper fan
• Lithofacies: Conglomerate, Gravel-bearing mudstone, Sandstone, Mudstone
• Lithofacies (Minor): Tuff
• Sedimentary structures: Cross stratification, Imbrication
• Paleocurrent: South to North or Northwest

• Thickness: 0 - 750 m
• Upper limit: Conformity (Nagahama Mudstone Member)
• Lower limit: Conformity (Nakanomata Mudstone Member)

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

• Distribution: Shimotsunako - Nakanomata - Nagahama - Mount Yakushi - Kamishozenji - Tsunako river, Joetsu city, Niigata pref.

• Akahane and Kato (1989) Geology of the Takada-Seibu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 89p. (in Japanese with English abstract 3p.)