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Subject
- Water quality3
- Geology2
- Groundwater2
- Abandoned mines1
- Acid mine drainage1
- Advanced National Seismic System (U.S.)1
- Aquatic ecology1
- Brown pelican1
- Coal1
- Earthquake engineering1
- Fault zones1
- Freshwater fishes1
- Geochemistry1
- Geology, Stratigraphic1
- Geomagnetism1
- Geophysics1
- Gravity anomalies1
- Hurricane damage1
- Isotope geology1
- Kerogen1