Subject
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Mining
2
Natural gas
2
Physiographic maps
2
Prospecting
2
Rocks
2
Royal commission
2
Sedimentary cover
2
Structural geology
2
Sulfide minerals
2
Tectonic maps
2
Terranes
2
Uranium
2
Abandoned Mines
1
Aboriginal lands
1
Accidents
1
Age
1
Agreements
1
Airborne methods
1
Ash
1
Balsam fir
1
Base metals
1
Basement rocks
1
Basins
1
Bathymetric maps
1
Beneficial insects
1
Biodiversity
1
Biology
1
Cambrian
1
Cape Breton Coalfields, N. S.
1
Cartography
1
Christmas trees
1
Chromite ores
1
Clean coal
1
Climatic changes
1
Coal Mines
1
Coal industry
1
Collecting
1
Colour
1
Combustion
1
Competition
1
Coopération
1
Copper ores
1
Correlation
1
Cross sections
1
Devonian
1
Diamonds
1
Diseases and pests
1
Drillholes
1
Earth science
1
Ecology
1
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