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Carnahan Bayou Member

yellow to gray siltstones, sandstones, and clays with thin tuffaceous beds; some lenses of black chert gravel; petrified wood locally.
StateLouisiana
NameCarnahan Bayou Member
Geologic agePhanerozoic | Cenozoic | Tertiary | Miocene
Original map labelMfcb
CommentsMember of the Fleming FM.
Primary rock typesiltstone
Secondary rock typesandstone
Other rock typesclay or mud; tuff; gravel
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone (Bed)
Sedimentary > Clastic > Siltstone (Bed)
Unconsolidated > Fine-detrital > Clay (Bed)
Incidental
Unconsolidated > Coarse-detrital > Gravel
Igneous > Volcanic
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 coverageGrant - La Salle - Natchitoches - Rapides - Sabine - Vernon

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