Wilcox Group

Wilcox Group
State Arkansas
Name Wilcox Group
Geologic age Early Eocene
Lithologic constituents
Unconsolidated > Fine-detrital (Bed)
Unconsolidated > Coarse-detrital > Sand (Bed)
Sedimentary > Coal (Bed)
Unconsolidated > Coarse-detrital > Gravel (Bed)
Comments Mainly interbedded sand, argillaceous sand, silt, clay, gravel and lignite. Approximate thickness is 1200 ft. in the Mississippi Embayment. Cyclic marine-nonmarine units formed in a fluvial-deltatic system. Some bauxite production in the Berger FM
Stratigraphic units Includes Flour Island FM, Fort Pillow Sand, Old Breastworks Fm and Berger FM.
NGMDB product
Counties Clark - Clay - Craighead - Dallas - Grant - Greene - Hempstead - Hot Spring - Lafayette - Lonoke - Miller - Nevada - Ouachita - Pulaski - Saline