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Page 4718, results 117926 - 117950

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Interpretation of detailed aerial gamma-ray survey, Jabal Ashirah area, southeastern Arabian Shield, Kingdom of Saudi Arabia
J. S. Duval
1987, Open-File Report 87-599
A detailed aerial gamma-ray spectrometric survey of the Jabal Ashirah area in the southeastern Arabian Shield has been analyzed using computer-classification algorithms. The analysis resulted in maps that show radiometric map units and gamma-ray anomalies indicating the presence of possible concentrations of potassium and uranium. The radiometric-unit map was interpreted...
Data-base development for water-quality modeling of the Patuxent River basin, Maryland
G. T. Fisher, R.M. Summers
1987, Open-File Report 87-379
Procedures and rationale used to develop a data base and data management system for the Patuxent Watershed Nonpoint Source Water Quality Monitoring and Modeling Program of the Maryland Department of the Environment and the U.S. Geological Survey are described. A detailed data base and data management system has been developed...
Bias and precision of selected analytes reported by the National Atmospheric Deposition Program and National Trends Network, 1984
M. H. Brooks, L.J. Schroder, T. C. Willoughby
1987, Water-Resources Investigations Report 87-4050
The U.S. Geological Survey operated a blind audit sample program during 1974 to test the effects of the sample handling and shipping procedures used by the National Atmospheric Deposition Program and National Trends Network on the quality of wet deposition data produced by the combined networks. Blind audit samples, which...
Interlaboratory comparability, bias, and precision for four laboratories measuring analytes in wet deposition, October 1983-December 1984
Myron H. Brooks, LeRoy J. Schroder, Timothy C. Willoughby
1987, Water-Resources Investigations Report 87-4067
Four laboratories involved in the routine analysis of wet-deposition samples participated in an interlaboratory comparison program managed by the U.S. Geological Survey. The four participants were: Illinois State Water Survey central analytical laboratory in Champaign, Illinois; U.S. Geological Survey national water-quality laboratories in Atlanta, Georgia, and Denver, Colorado; and Inland...
Ground-water data for Georgia, 1986
J.S. Clarke, S.A. Longsworth, C. N. Joiner, M.F. Peck, K.W. McFadden, B.J. Milby
1987, Open-File Report 87-376
Continuous water level records from 152 wells and water level measurements from an additional 750 wells in Georgia during 1986 provide the basic data for this report. Hydrographs for selected wells illustrate the effects that changes in recharge and discharge have had on the groundwater reservoirs in the State. Daily...
Hydrologic and geologic data for the Edwards Aquifer Recharge Zone near Georgetown, Williamson County, Texas, 1986-87
M.E. Dorsey, Diana L. Slagle
1987, Open-File Report 87-691
This report presents a compilation and summary of data related to the interchange of water between the Edwards aquifer and streams, and to the hydraulics of vertical movement of water in the Georgetown Limestone in the Georgetown area of Williamson County. It presents hydrologic, geologic, hydraulic, physical, geophysical, and water-quality...