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Iwagamiyama Formation

• Volcanic rocks
• Miocene

• Sedimentary facies: Terrestrial
• Lithofacies: Mafic volcanic rocks

• Distribution: southeast of Lake Inawashiro, Fukushima pref.

• Furukawa et al. (2018) Geology of the Azuma Yama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 74p. (in Japanese with English abstract 3p.)