Subject
Appalachian orogeny
1
Blake plateau
1
Coal
1
Coal fields
1
Coal mining
1
Continental shelf
1
Crust
1
Cumberland plateau
1
Geologic history
Geologic maps
1
Geology
1
Geomorphology
1
Geophysical maps
1
Mineral deposits
1
Mining history
1
Paleontological excavations
1
Seismic profiles
1
Stratigraphy
1
Structural geology
1