Collier Shale

Collier Shale
State Arkansas
Name Collier Shale
Geologic age Early Ordovician
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Shale > Black-shale (Bed)
Minor
Sedimentary > Chemical > Chert (Bed)
Sedimentary > Carbonate > Limestone (Bed)
Comments Black clay shale with minor thin beds of limestone and chert. Approximatly 1000 ft. maximum thickness
References

Ferguson, J.G., 1920. Outlines of the geology, soils, and minerals of the State of Arkansas: Arkansas State Bureau of Mines, Manufactures and Agriculture,192 pp.

Stone, C.G. and Bush, W.V. 1982, Summary of the geology of the eastern Ouachita Mountains, Arkansas: Guidebook - Arkansas Geological Commission, vol.82-2, 24 pp.

NGMDB product
Counties Garland - Montgomery