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Subject
- Geology, Stratigraphic[remove]15
- Geology9
- Geological cross sections6
- Geology, Structural6
- Cretaceous Geologic Period5
- Electric logging4
- Geophysical well logging2
- Pennsylvanian Geologic Period2
- Geomorphology1
- Glacial epoch1
- Glacial landforms1
- Pleistocene Geologic Epoch1
- Quaternary Geologic Period1
- Radioactive dating1
- Sediments (Geology)1
- Unconformities (Geology)1
- Upper mantle project1
