Itaya Sandstone and Siltstone Member

Itaya Sandstone and Siltstone Member (Ikebe et al., 1951) Sumi et al., 1989

Invalid synonym: Itaya Formation, Itaya Alternation Member, Shibano Alternation Member

Type locality: Michishige - Ikari, Takaoka city, Toyama prefecture
Coherent formation
Pleistocene?

Lithofacies: Conglomerate, Interbedded sandstone and siltstone, Siltstone
Lithofacies (Minor): Lignite
Lithofacies (Basal): Conglomerate
Sedimentary structures: Graded bedding, Cross stratification
Paleocurrent: to Northeast, to Northwest - West

Thickness: 20 - 40 m
Upper limit: Unconformity (Hanyu Formation)
Lower limit: Unconformity (Zukawa Sandstone Member)

Himi Formation (Toyama, Toyama pref.)
[ Upper ]
--------------
Itaya Sandstone and Siltstone Member
~~~~~~~~~~~~~~
Zukawa Sandstone Member
--------------
[ Lower ]

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

Distribution: Michishige - Ikari - Itaya - Ikarabe - Baba - Tsukinoya - Ishitsutsumi, Takaoka city, Toyama pref.; Moo - Sono, Himi city, Toyama pref.
Fossils (Shellfishes): Acila sp., Cardidae, Chlamys sp., Dentalium sp., Ennucula sp., Mizuhopecten sp., Nuculana sp., Yoldia (Cnesterium) sp.

Amano et al. (2012) Jour. Geol. Soc. Japan, vol.118, no.12, pp.810-822 DOI
Sumi et al. (1989) Geology of the Isurugi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 118p. (in Japanese with English abstract 5p.)