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Subject
- Geology40
- Geomagnetism11
- Geology, Stratigraphic8
- Magnetic anomalies7
- Mines and mineral resources5
- Coal3
- Landsat satellites3
- Radioactive dating3
- Aquifers2
- Earthquakes2
- Groundwater2
- Sediments (Geology)2
- Seismology2
- Faults (Geology)1
- Floods1
- Formations (Geology)1
- Geophysical methods1
- Gravity prospecting1
- Landslides1
- Lead1