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Braided Stream Terraces

light gray, tan and brown fine to coarse sand; some clay silt and gravel.
StateLouisiana
NameBraided Stream Terraces
Geologic agePhanerozoic | Cenozoic | Quaternary | Pleistocene
Original map labelQbs
CommentsGlacial outwash of ancestral Arkansas River.
Primary rock typesand
Secondary rock typeclay or mud
Other rock typessilt; gravel
Lithologic constituents
Major
Unconsolidated > Coarse-detrital > Sand (Terrace, stream)
Minor
Unconsolidated > Fine-detrital > Silt (Terrace, stream)
Unconsolidated > Fine-detrital > Clay (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 coverageAvoyelles - Caldwell - Catahoula - East Carroll - Franklin - La Salle - Madison - Morehouse - Rapides - Richland - Tensas - West Carroll

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