Uranium Resource Evaluation
USGS National Uranium Resource Evaluation (NURE) Program
From 1974 to 1980, the Federal Government systematically evaluated the uranium resources of the conterminous United States and Alaska. Earth science research in the National Uranium Resource Evaluation (NURE) program included hydrogeochemical and stream sediment sampling, coordinated rock sampling and analyses, airborne radiometric and magnetic surveys, geologic map compilation, ore deposit studies, subsurface geologic investigation, technology applications studies, development of resource estimation methodologies, and uranium resource evaluations incorporating research results.
The Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) program (initiated in 1975) was one of nine components of NURE. Here are maps of the results for analyses of pH, manganese, and vanadium in groundwater samples taken in North Carolina. These results show some of the variation of groundwater chemistry in different areas of the State.
[Geochemistry of water samples in the US from the NURE-HSSR database (USGS)]
Click on these links for individual NURE maps:
(ppb = parts per billion or micrograms per liter; ppm = parts per million or milligrams per liter)
[Geochemistry of water samples in the US from the NURE-HSSR database (USGS)]