Kurehayama Gravel Bed

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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

Thickness: 100 - 300 m
Lower limit: Unconformity (Mita Formation)

Hokuriku Group (Yatsuo, Toyama pref.)
[ Upper ]
?--?--?--?--?-
Kurehayama Gravel Bed
~~~~~~~~~~~~~~
Tonami Group
~~~~~~~~~~~~~~
Yatsuo Group
~~~~~~~~~~~~~~
Nirehara Formation
~~~~~~~~~~~~~~
[ Lower ]

Hokuriku Group (Mount Kureha, Toyama pref.)
[ Upper ]
?--?--?--?--?-
Kurehayama Gravel Bed
~~~~~~~~~~~~~~
Chokeiji Sand Member
--------------
Anyobo Sandstone and Mudstone Alternation Member
--------------
Nishi-Toyama Sandstone Member
?--?--?--?--?-
[ Lower ]

Hokuriku Group (Uozu, Toyama pref.)
[ Upper ]
?--?--?--?--?-
Kurehayama Gravel Bed
~~~~~~~~~~~~~~
Muroda Formation
--------------
Otogawa Formation
~~~~~~~~~~~~~~
Yatsuo Group
~~~~~~~~~~~~~~
Nirehara Formation
~~~~~~~~~~~~~~
[ Lower ]

------ 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