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Braided Stream Terraces

light gray, tan and brown fine to coarse sand; some clay silt and gravel. Overlain by 1-9 meters of loess.
StateLouisiana
NameBraided Stream Terraces
Geologic agePhanerozoic | Cenozoic | Quaternary | Pleistocene
Original map labelQbs-l
CommentsGlacial outwash of ancestral Arkansas River. Where overlain by loess, this unit has a red dotted overlay pattern on the source map. Polygons for this unit in our coverage which should have the loess overlay pattern are designated by "-l" being added to the base map unit symbol.
Primary rock typesand
Secondary rock typeclay or mud
Other rock typessilt; gravel
Lithologic constituents
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 coverageCatahoula - East Carroll - Franklin - Madison - Richland - West Carroll

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