Ui Sandstone-mudstone Member

[ Top ] [ Japanese ]

Ui Sandstone-mudstone Member

Coherent formation
Miocene

Sedimentary facies: Lacustrine
Sedimentary facies: Sublacustrine fan
Sedimentary facies: Fluvial channel, Flood plain, Shallow lake, Meandering stream, Braided stream
Lithofacies: Andesitic tuff

Upper limit: Lithofacies boundary (Less than 10 m thick cross-stratified conglomeratic sandstone)

Koura Formation
[ Upper ]
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Udeyama Sandstone-dominated sandstone-mudstone Member
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Shichirui Sandstone-dominated sandstone-mudstone Member
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Takaoyama Andesitic volcaniclastics Member
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Ui Sandstone-mudstone Member
?--?--?--?--?-
[ Lower ]

Shimane peninsula
[ Upper ]
?--?--?--?--?-
Matsue Formation
~~~~~~~--------
Furue Formation
?--?--?--?--?-
Ushikiri Formation
?--?--?--?--?-
Josoji Formation
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Koura Formation
?--?--?--?--?-
[ Lower ]

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

Distribution: Shimane peninsula, Shimane pref.
Fossils: Wood trunks, Roots

Sakai et al. (2013) Jour. Geol. Soc. Japan, vol.119, no.4, pp.285-299 DOI