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Marmaton Group

Shale and limestone. Shale is dark gray to light gray, greenish gray, black, red, silty, sandy carbonaceous, fissile, calcareous; contains scattered limestone nodules. Limestone is medium gray to light gray, red, mottled thin bedded to thick bedded, sandy, shaly, vuggy, fossiliferous. Approx. max thickness 125 ft
StateNebraska
NameMarmaton Group
Geologic agePhanerozoic | Paleozoic | Carboniferous Pennsylvanian-Middle [Desmoinesian]
Original map labelPm
CommentsIncludes in decending order: Altamont Limestone, Bandera Shale, Pawnee Limestone, Labette Shale, and Fort Scott Limestone.
Primary rock typeshale
Secondary rock typelimestone
Other rock types
Lithologic constituents
Major
Sedimentary > Carbonate > Limestone (Bed)
Sedimentary > Clastic > Mudstone > Shale (Bed)
Map references
Burchett, R. R., 1986, Geologic Bedrock Map of Nebraska: Nebraska Geological Survey. Scale 1:1 Million.
Unit references
Burchett, R. R., 1986, Geologic Bedrock Map of Nebraska: Nebraska Geological Survey. Scale 1:1 Million.
Burchett, R. R., Reed E. C., and Dreeszen, V. H., 1975, Bedrock Geologic Map Showing Thickness of Overlying Quaternary Deposits, Fremont Quad. and part of Omaha Quad., Nebraska: USGS Map I-905. Scale 1:250K.
Geographic coverageBurt - Cass - Douglas - Sarpy - Washington

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