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Deweyville Terrace

gray mixed with brown-to-red clay and silty clay; some sand and gravel locally.
StateLouisiana
NameDeweyville Terrace
Geologic agePhanerozoic | Cenozoic | Quaternary | Pleistocene
Original map labelQtd
CommentsTopographically higher than Holocene allivium and lower than Prairie terraces. Found along streams of intermediate size.
Primary rock typeclay or mud
Secondary rock typesand
Other rock typesgravel
Lithologic constituents
Major
Unconsolidated > Fine-detrital > Clay (Terrace, stream)
Minor
Unconsolidated > Coarse-detrital > Gravel (Terrace, stream)
Unconsolidated > Coarse-detrital > Sand (Terrace, stream)
Map references
United States Geological Survey, 1998, Digital Overlay of the Geologic Map of Louisiana: U.S. Geological Survey, Biological Resources Division, National Wetlands Research Center, Product Id USGS-NWRC 1984-02-0001, http://www.nwrc.usgs.gov/.
Unit references
United States Geological Survey, 1998, Digital Overlay of the Geologic Map of Louisiana: U.S. Geological Survey, Biological Resources Division, National Wetlands Research Center, Product Id USGS-NWRC 1984-02-0001, http://www.nwrc.usgs.gov/.
Geographic coverageAllen - Beauregard - Caddo - Calcasieu - Morehouse - Ouachita - Saint Tammany - Union - Vernon - Washington

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URL: http://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=LAQtd;0
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