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Yumoriyama Volcanic Products
- Type locality: Mount Yumori, Shizukuishi city, Iwate county, Iwate prefecture - Tazawako, Senboku city, Akita prefecture
- Volcanic rocks
- Pleistocene - Holocene
- Lithofacies: Olivine clinopyroxene andesite, Augite hypersthene olivine andesite lava, Pyroclastic deposits
- Distribution: Mount Yumori, Shizukuishi city, Iwate county, Iwate pref. - Tazawako, Senboku city, Akita pref.
- Suto and Ishii (1987) Geology of the Shizukuishi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 142p. (in Japanese with English abstract 5p.)