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Senganda Formation

• Type locality: Senganda, Iwatsuki, Kesennuma city Miyagi prefecture
• Coherent formation
• Pliocene - Pleistocene
• Correlation: Dainenji Formation

• Lithofacies: Gravels, Sands, Clay
• Lithofacies (Minor): Lignite

• Thickness: 10 m or thinner
• Upper limit: Unconformity (Matsuzaki Formation)
• Lower limit: Unconformity (Yokonuma Formation)

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

• Distribution: Senganda, Iwatsuki, Kesennuma city Miyagi pref.
• Fossils (Bivalves): Cyclina sp., Macoma sp.

• Kambe and Shimazu (1961) Kesennuma, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 73p. (in Japanese with English abstract 16p.)