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Subject
- Geology115
- Groundwater26
- Sediments (Geology)14
- Aquifers13
- Geology, Stratigraphic12
- Gravity anomalies11
- Coal10
- Hydrogeology10
- Geochemical prospecting5
- Heavy minerals5
- Marine sediments4
- Geomagnetism3
- Mines and mineral resources3
- Stream measurements3
- Tin ores3
- Uranium ores3
- Water quality3
- Cadmium2
- Continental shelf2
- Copper ores2