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- Geological cross sections[remove]23
- Geology16
- Geology, Stratigraphic11
- Geology, Structural8
- Cretaceous Geologic Period4
- Electric logging4
- Petroleum3
- Geophysical well logging2
- Natural gas2
- Ordovician Geologic Period2
- Upper mantle project2
- CT.1
- Cambrian Geologic Period1
- Coalfields1
- Crust1
- Faults (Geology)1
- Geochemistry1
- Geophysics1
- Glacial landforms1
- Impact craters1