| State | Louisiana |
|---|---|
| Name | Jackson Group (undifferentiated) |
| Geologic age | Eocene |
| Lithologic constituents | Major
Unconsolidated > Fine-detrital > Clay (Bed)
Sedimentary > Coal > Lignite (Bed)
Unconsolidated > Coarse-detrital > Sand (Bed)
|
| References | Snead, J.I., and Mcculloh, R.P., 1984, Geologic Map of Louisiana: Louisiana Geological Survey, scale 1:500,000. |
| NGMDB product | |
| Counties | Caldwell - Catahoula - Grant - La Salle - Natchitoches - Sabine - Winn |