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Subject
- Mines and mineral resources13
- Geology10
- Geology, Stratigraphic6
- Conterminous United States Mineral-Resource Assessment Program2
- Geology, Structural2
- Lithofacies2
- Aerial photography in geology1
- Aerial photography in hydrogeology1
- Carbonate rocks1
- Coal1
- Geochemical prospecting1
- Geophysics1
- Hydrology1
- Hydrology, Karst1
- Industrial minerals1
- Karst1
- Petrology1
- Sedimentary rocks1
- Spectrum analysis1
- Water quality1