Honmachi Formation

Coherent formation
Pleistocene

Sedimentary facies: Marine

Upper limit: Conformity (Sakaide Formation)
Lower limit: Conformity (Mitoyo Group)

Sakaide lowland, Kagawa pref.
[ Upper ]
--------------
Ayagawa Formation
~~~~~~~~~~~~~~
Sakaide Formation
--------------
Honmachi Formation
--------------
Mitoyo Group
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Sakaide lowland, Kagawa pref.
Tephra: Se-Tg

Kawamura and Nishiyama (2019) Jour. Geol. Soc. Japan, vol.125, no.1, pp.87-105 DOI