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Mineral Resources > Online Spatial Data > Geology > by state > Louisiana

Lena Member

gray calcareous clays which may weather to black soil; siltstone, taffaceous clays and some volcanic ash beds
StateLouisiana
NameLena Member
Geologic agePhanerozoic | Cenozoic | Tertiary | Miocene
Original map labelMfl
CommentsMember of the Fleming FM.
Primary rock typeclay or mud
Secondary rock typesiltstone
Other rock typesvolcanic ash
Lithologic constituents
Major
Sedimentary > Clastic > Siltstone (Bed)
Unconsolidated > Fine-detrital > Clay
Incidental
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=LAMIfl;0
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