Shimoshima Group

Type locality: Amakusa-Shimoshima island, Kumamoto prefecture
Coherent formation
middle Eocene

Sedimentary facies: Marine

Upper limit: Conformity (Sakasegawa Group)

Shimoshima Group
[ Upper ]
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Toishi Formation
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Shikiyama Formation
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Fukuregi Formation
?--?--?--?--?-
[ Lower ]

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

Distribution: Amakusa-Shimoshima island, Amakusa city, Kumamoto pref.; Gesu island, Ushibuka town, Amakusa city, Kumamoto pref.

Ando et al. (2009) Jour. Geol. Soc. Japan, vol.115, no.4, pp.187-190 DOI