Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Waldron Shale  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Silurian | |
| ....Middle Silurian | |
| .....Waldron Shale | |
| RT | Kentucky |
| Indiana | |
| Tennessee | |
| SN | A gray or greenish-gray calcareous shale with occasional thin beds of limestone or argillaceous shale. S Indiana, W central Kentucky, and central Tennessee. |