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Subject
- Geology710
- Groundwater62
- GeĢologie51
- Aquifers39
- Geology, Structural35
- Geology, Stratigraphic28
- Hydrogeology28
- Water table18
- Mines and mineral resources15
- Groundwater flow9
- Geochemical prospecting8
- Geomorphology8
- Coal7
- Ocean bottom6
- Faults (Geology)5
- Geological cross sections5
- Gold ores5
- Hydrography5
- Roads5
- Volcanic eruptions5