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Subject
- Geology151
- Mines and mineral resources26
- Earthquakes20
- Seismology18
- Geochemical prospecting17
- Sediments (Geology)17
- Geology, Stratigraphic9
- Geology, Structural9
- Coal7
- Gravity anomalies6
- Groundwater6
- Geomagnetism5
- Ore deposits5
- Phosphates5
- Geophysics4
- Magnetic anomalies4
- Volcanism4
- Faults (Geology)3
- Formations (Geology)3
- Petroleum3
