Tenma Formation

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Tenma Formation Yamane, 1930

Type locality: Tenma, Kita ward, Oska prefecture
Coherent formation
Pleistocene
Correlation: Lower terrace deposits
Correlation (Lower): Itami Formation

Sedimentary facies: Fluvial, Lacustrine
Sedimentary facies (Minor): Marine
Lithofacies (Lower): Gravels, Sands
Lithofacies (Middle): Clay, Silt
Lithofacies (Lower): Gravels, Sands

Lower limit: Unconformity
Thickness (Upper): 12 - 20 m
Thickness (Middle): 6 - 14 m
Thickness (Lower): 5 - 12 m

underground of Osaka plain
[ Upper ]
+__+__+__+__+_
Namba Formation
~~~~~~~~~~~~~~
Tenma Formation
~~~~~~~~~~~~~~
Uemachi Formation
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Tenma, Kita ward, Oska pref.

Miyachi et al. (2001) Geology of the Osaka-Tohokubu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 130p. (in Japanese with English abstract 6p.)