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Subject
- Geology284
- Geology, Stratigraphic64
- Mines and mineral resources43
- Geology, Structural40
- Faults (Geology)18
- Geochemical prospecting17
- Census districts13
- River sediments13
- Gravity anomalies12
- Hydrogeology12
- Submarine topography12
- Aquifers10
- Coal10
- Groundwater9
- Housing9
- Marine sediments9
- Stratigraphic correlation9
- Geomagnetism8
- Sediments (Geology)8
- Continental margins7