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Nagumo Pumice Flow Deposit Yamamoto, 2016
- Type locality: Numao river, Ogawada, Akagi town, Shibukawa city, Gunma prefecture
- Volcanic rocks
- Pleistocene (52 ka)
- Correlation: Ag-NM2 Tephra
- Sedimentary facies: Terrestrial
- Lithofacies: Hornblende-bearing orthopyroxene clinopyroxene andesite - dacite
- Lithofacies: Pumiceous lapilli tuff
- Sedimentary structures: Reversed graded bedding
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Numao river, Ogawada, Akagi village, Shibukawa city, Gunma pref.; Kawaguchi river, Motojuku, Omama village, Midori city, Gunma pref.
- Ito et al. (2022) Geology of the Kiryu and Ashikaga District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 101p. (in Japanese with English abstract 4p.)
- Yamamoto (2016) Jour. Geol. Soc. Japan, vol.122, no.3, pp.109-126, DOI