B Member

Type locality: Gumizaki town, Satsumasendai city, Kagoshima prefecture
Coherent formation
Early Cretaceous, middle - late Aptian (Radolarians)

Sedimentary facies: Marine
Depth of water: Shallow marine
Lithofacies: Mudstone

Thickness: 250 m

Gumizaki Formation
[ Upper ]
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C Member
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B Member
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A Member
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[ Lower ]

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

Distribution: Gumizaki town, Satsumasendai city, Kagoshima pref.
Fossils: Ammonoids (Cheloniceras? sp.)

Ishida et al. (2008) Jour. Geol. Soc. Japan, vol.114, no.10, pp.532-535 DOI