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Matsukawa Formation Yoshida et al., 1983

• Coherent formation
• Basin-fill deposit
• middle Miocene

• Lithofacies: Interbedded tuffaceous sandstone and siltstone
• Lithofacies (Minor): Conglomerate
• Sedimentary structures (Upper): Cross stratification

• Thickness: ca. 50 m
• Distribution (Diameter): ca. 1 km
• Upper limit: Unconformity (Fushiogami Debris Avalanche Deposit)

• Distribution: Negiuchi, kanezawa, Matsukawa town, Fukushima city, Fukushima pref.
• Fossils: Plants

• Hasegawa et al. (2011) Jour. Geol. Soc. Japan, vol.117, Supplement, pp.33-48 DOI
• Sakaguchi (1995) Geology of the Nihonmatsu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 79p. (in Japanese with English abstract 4p.)