Soni Formation

Type locality: Soni city, Uda county, Nara prefecture
Coherent formation
middle Miocene
Correlation: Jigokudani Formation

Lower limit: Unconformity (Yamagasu Group)

Soni Formation
[ Upper ]
?--?--?--?--?-
Upper Member
--------------
Konagao Conglomerate Member
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Shimotaguchi, Uda city, Nara pref.; Byobu-iwa, Soni city, Uda county, Nara pref.; Mount Amagatake, Tsu city, - Iga city, Mie pref.

Sato et al. (2012) Jour. Geol. Soc. Japan, vol.118, Supplement, pp.53-69 DOI