coalfield
C17838
concept
A coalfield is a geographically defined area containing significant, economically workable deposits of coal, often comprising multiple coal seams and mining operations.
Observed surface forms (17)
| Surface form | Occurrences |
|---|---|
| coal mining region | 10 |
| coal basin | 9 |
| coal field | 7 |
| coal-producing region | 2 |
| coalfield area | 2 |
| lignite basin | 2 |
| bituminous coal deposit | 1 |
| coal deposit | 1 |
| coal mining district | 1 |
| coal-bearing area | 1 |
| coal-bearing region | 1 |
| coal-mining area | 1 |
| coal-mining district | 1 |
| coalfield region | 1 |
| coalfield system | 1 |
| former lignite mining area | 1 |
| lignite mining region | 1 |