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Subject
- Geology90
- Sediments (Geology)12
- Geology, Stratigraphic9
- Coal7
- Geochemical prospecting7
- Groundwater6
- Formations (Geology)5
- Mines and mineral resources5
- Heavy minerals4
- Aquifers3
- Faults (Geology)3
- Gravity anomalies3
- Calderas2
- Earth movements2
- Earthquakes2
- Geology, Structural2
- Geomagnetism2
- Limonite2
- Marine sediments2
- Radioactive prospecting2
