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System dynamics simulation modeling applied to western coal development environmental impact analysis
R. K. Mark, D. S. Harwood, E. B. Newman, Richard R. Doell
1979, Open-File Report 79-226
This report, which was originally prepared in 1977 as an administrative report, evaluates the Geological Survey's first attempt to use simulation modeling in the environmental impact statement (EIS) process. It discusses the background of the modeling project, evaluates the usefulness of that project to the Northern Powder River Basin regional...
Water-resources appraisal of the south-Arkansas lignite area
J. E. Terry, C. T. Bryant, A. H. Ludwig, J.E. Reed
1979, Open-File Report 79-924
The feasibility of developing lignite resources in south-central Arkansas is an important question at the present time (1978). Part of the concern is related to the possible impacts that mining and processing of lignite will have on water resources. Not only will the disturbance caused by excavating affect the quantity...
A uranium occurrence in the Tertiary Kootznahoo Formation on Kuiu Island, southeast Alaska
Kendell A. Dickinson
1979, Open-File Report 79-1427
Radioactive anomalies as high as 50 times background and uranium-bearing samples were discovered in parts of the nonmarine Tertiary Kootznahoo Formation in southeast Alaska by K. A. Dickinson and John Mitchell. Samples containing as much as 1300 ± 400 ppm uranium, measured by beta eU, were found. These samples have...
Water and sediment measurements in San Francisco Bay, California
Laurence E. Schemel, Andrea E. Alpine, Brian E. Cole, Lee A. Dedini, Elliott C. Spiker
1979, Open-File Report 78-973
Water samples collected in San Francisco Bay, the Gulf of the Farallones, and the delta of the Sacramento and San Joaquin rivers were analyzed for salinity, temperature, partial pressure of carbon dioxide (pCO2), chlorophyll a, alkalinity, particulate organic carbon (POC), and the stable carbon isotope ratio (δ13C) of the POC...