[Parameters: Topic='SOLID EARTH', Term='GEOMAGNETISM']
Reformatted Data from the National Uranium Resource Evaluation (NURE) Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) ProgramEntry ID: NURE
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Abstract: 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.
Various techniques were used for data collection and analysis. Borehole geophysical measurements included borehole drift and diameter, spontaneous potential, resistance and resistivity, density, spectral and gross gamma count, porosity, and magnetic susceptibility. Geochemical analysis methods included delayed neutron counting, multichannel gamma spectrometry, neutron activation analysis, x-ray fluorescence, emission spectrometry, fluorescence spectrometry, mass spectrometry, atomic absorption, turbidimetry, and colorimetry.
The Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) program (initiated in 1975) was one of nine components of NURE. Planned systematic sampling of the entire United States began in 1976 under the responsibility of four DOE national laboratories: Lawrence Livermore Laboratory (LLL), Los Alamos Scientific Laboratory (LASL), Oak Ridge Gaseous Diffusion Plant (ORGDP), and Savannah River Laboratory (SRL). Each DOE laboratory developed its own sample collection, analytical, and data management methodologies and hired contractors to do much of the actual work.
In 1977, the entire NURE program changed from a study area basis (State, County, or geomorphic provinces) to a 1° x 2° quadrangle basis. Many of the early study areas were not coincident with quadrangle boundaries and so additional sampling was done later to complete the quadrangle studies. Some quadrangles were never completed. Originally, all samples were only analyzed for uranium. Analyses for additional elements, other than uranium, were also authorized in 1977 and many - but not all - early samples were reanalyzed.
The NURE program effectively ended about 1983-84 when funding disappeared. Out of a total of 625 quadrangles that cover the entire lower 48 States and Alaska, only 307 quadrangles were completely sampled and another 86 quadrangles were partially sampled.
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Project ID: SIMBA Drift Station
Start Date: 2007-09-01Stop Date: 2007-10-31
Access Constraints None
Use Constraints None
Data Set Progress
Phone: +1 1 210 341 6556
Email: sackley at pol.net, Stephen.ackley at utsa.edu
118 W Castle Ln
City: San Antonio
Province or State: Texas
Postal Code: 78213
Role: DIF AUTHOR
Email: Jessica.jimenez_eng at yahoo.com
3407 Ivy Ave
Province or State: Texas
Postal Code: 78557
Weissling, B., Lewis, M.J., Ackley, S.F. (May 2011), Intercomparisons of Antarctic sea ice properties from ship observations, active and passive microwave satellite observations in the Bellingshausen Sea, Deep Sea Research II, 58, 9-10, 1112-1124, doi:10.1016/j.dsr2.2010.10.032, http://www.sciencedirect.com/science/article/pii/S0967064510003188
Creation and Review Dates
DIF Creation Date: 2012-02-07
Last DIF Revision Date: 2012-04-20