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Kurehayama Gravel Bed Imamura, 1932
- Type locality: Mount Kureha, Toyama city, Toyama prefecture
- Coherent formation
- late Pliocene -, early - middle Pleistocene
- Sedimentary facies: Fluvial
- Sedimentary facies: Alluvial fan
- Lithofacies: Conglomerate
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Shiraiwa, Kamiichi city, Nakaniikawa county, Toyama pref.; Mount Kureha, Toyama city, Toyama pref.; Uozu city, Toyama pref.; Shogonji, Tonami city, Toyama pref.; Mita - Takakuma - Jono, Yatsuo town, Toyama city, Toyama pref.; Osedani - Yoshizumi, Fuchu town, Toyama city, Toyama pref.
- Tephra: pt (0.5 - 0.3 Ma, TL, 0.72 - 0.68 Ma, ESR = KMT), Taniguchi Tuff, Maruyama 1 Tephra, Maruyama 2 Tephra (Mry2, UN-MD2, 2.65 Ma)
- Nakajima et al. (2019) Jour. Geol. Soc. Japan, vol.125, no.7, pp.483-516 DOI
- Tamura et al. (2010) Jour. Geol. Soc. Japan, vol.116, Supplement, pp.1-20 DOI