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Subject
- Geology, Stratigraphic[remove]174
- Geology142
- Geology, Structural24
- Mines and mineral resources24
- Stratigraphic correlation15
- Faults (Geology)6
- Formations (Geology)3
- Geomorphology3
- Glacial epoch3
- Paleogeography3
- Petroleum3
- Volcanic fields3
- Carbonate rocks2
- Glacial landforms2
- Metamorphism (Geology)2
- Oil-shales2
- Volcanoes2
- Coal1
- Coal mines and mining1
- Continental margins1