Aishiro Formation

Coherent formation
middle Miocene (14 - 13 Ma)

Lithofacies: Interbedded sandstone and shale

Thickness (Northwest): 550 m
Lower limit: Interfingered (Josoji Formation)

Shimane peninsula (Northwest)
[ Upper ]
?--?--?--?--?-
Matsue Formation
~~~~~~~--------
Furue Formation
--------------
Aishiro Formation
'''''''/,,,,,,
Josoji Formation
?--?--?--?--?-
[ Lower ]

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

Distribution: northwest Shimane peninsula, Shimane pref.

Tanaka and Nomura (2009) Jour. Geol. Soc. Japan, vol.115, no.6, pp.261-265 DOI