Clayton and McNairy Formations, undivided

Clayton and McNairy Formations, undivided
State Kentucky
Name Clayton and McNairy Formations, undivided
Geologic age Paleocene to Upper Cretaceous
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Shalelithologies and lithology percentages estimated from stratigraphic column on paper source map; combined units estimated at about 50% sandstone and 50% shale (sandstone and shale are interbedded)
Sedimentary > Clastic > Sandstonelithologies and lithology percentages estimated from stratigraphic column on paper source map; combined units estimated at about 50% sandstone and 50% shale (sandstone and shale are interbedded)
Comments in Jackson Purchase, combined thickness ranges from 40-85 m
References

Noger, M.C., compiler, 1988, Geologic map of Kentucky: sesquicenntennial edition of the Kentucky Geological Survey: U.S. Geological Survey and the Kentucky Geological Survey, scale 1:500,000.

NGMDB product
Counties Calloway - Livingston - Marshall - Trigg