(Invalid name) Obusuma Group

Coherent formation
Miocene

(Invalid name) Obusuma Group
[ Upper ]
?--?--?--?--?-
Arakawa Formation
--------------
Kozono Formation
?--?--?--?--?-
[ Lower ]

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

Distribution: Saitama pref.

Makimoto and Takeuchi (1992) Geology of the Yorii District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 136p. (in Japanese with English abstract 6p.)