Masuda Group

Coherent formation
First Seto Inland Sea
Sedimentary basin in island arc
middle Miocene

First Setouchi Supergroup (Shimane pref.)
[ Upper ]
~~~~~~~~~~~~~~
Masuda Group
~~~~~~~~~~~~~~
[ Lower ]

[ Upper ]
~~~~~~~~~~~~~~
Second Setouchi Supergroup
?--?--?--?--?-
First Setouchi Supergroup
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Shimane pref.

Shinjoe et al. (2018) Jour. Geol. Soc. Japan, vol.124, no.7, pp.533-538 DOI