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Upper Cretaceous

fossiliferous limestone and marl
State Louisiana
Name Upper Cretaceous
Geologic age Phanerozoic | Mesozoic | Cretaceous
Comments Only at surface at Prothro and Rayburns salt domes in Bienville Parish.
Primary rock type limestone
Secondary rock type unconsolidated deposit
Other rock types
Lithologic constituents
Major
Sedimentary > Carbonate > Limestone (Bed)
Unconsolidated > Marl (Bed)
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/.
Counties Bienville