Atago Formation

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Atago Formation Mizuno, 1992

Coherent formation
Pliocene - Pleistocene
Correlation: Ogura Member, Lower Most part
Correlation (Upper - Middle): Toshima Formation
Correlation (Middle - Lower): Yudani Formation

Sedimentary facies: Fluvial, Lacustrine
Lithofacies: Silt, Clay, Sands, Gravels (schist gravel deficient)
Sedimentary structures: Trough cross-stratification

Thickness: 150 m or thicker
Upper limit: Unconformity (Marine Terrace Deposits)

Atago Formation
[ Upper ]
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Takedani Member
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Gunge Member / Tsushi Member
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Aihara Member
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Inohana Member
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[ Lower ]

Osaka Group (central Awajishima, Hyogo pref.)
[ Upper ]
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Goshikihama Formation
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Atago Formation
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[ Lower ]

Second Setouchi Supergroup (Osaka pref. - Hyogo pref.)
[ Upper ]
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Osaka Group
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[ Lower ]

[ Upper ]
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Second Setouchi Supergroup
?--?--?--?--?-
First Setouchi Supergroup
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[ Lower ]

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

Distribution: Ichinomiya - Kareki, Awaji city, Hyogo pref.
Fossils: Stegodon sp.
Fossils (Plants): Cunninghamia konishii, Euryale akashiensis, Fagus hayatae, Fortunearea sp., Glyptostrobus pensilis, Lagerstroemia indica, Liquidambar sp., Metasequoia disticha, Picea koribai, Pseudotsuga japonica, Sequoia sempervirens

Mizuno et al. (1990) Geology of the Akashi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 90p. (in Japanese with English abstract 5p.)