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Page 4993, results 124801 - 124825

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Not all publications have extents, not all extents are completely accurate
Geothermal gradients in the Missoula and Bitterroot Valleys, west-central Montana
Robert B. Leonard, Wayne A. Wood
1980, Water-Resources Investigations Report 80-89
Temperature-depth profiles of six cased test holes in the Missoula and Bitterroot Valleys, west-central Montana, consist of linear segments, the intersections of which commonly correspond with lithologic boundaries. Geothermal gradients commonly decreased with depth, probably as a result of compaction and higher quartz content of the deeper sedimentary deposits. There...
Cross sections of the Hudson River estuary from Troy to New York City, New York
D.A. Stedfast
1980, Water-Resources Investigations Report 80-24
Data on channel geometry of the Hudson River estuary at 125 cross sections between the Federal Dam at Troy and the norhtern limits of New York City (133 miles) are presented for use in hydraulic modeling, tidal studies, traveltime and water-quality studies, and other uses requiring knowledge of Hudson River...
Geochemical-exploration studies in the Coeur d'Alene district, Idaho and Montana
Garland Bayard Gott, John B. Cathrall
1980, Professional Paper 1116
The principal ore deposits in the Coeur d'Alene district are lead-zinc-silver replacement veins in Precambrian rocks of the Belt Supergroup. The main ore minerals are galena, tetrahedrite, and sphalerite. The host rocks are mainly quartzite, siltite, and argillite. Cretaceous quartz monzonite locally intrudes the Beltrocks. The geochemical investigations reported here...
Analyses of water, core material, and elutriate samples collected near Sicily Island, Louisiana (Sicily Island area levee project)
Dennis K. Demcheck, Alton J. Dupuy
1980, Open-File Report 80-434
Samples consisting of composited core material were collected from five areas by the U.S. Army Corps of Engineers and analyzed by the U.S. Geological Survey to provide data on the impact of proposed channel excavation and levee construction in the Sicily Island area, Louisiana. Samples of receiving water from the...
Nuclear event time histories and computed site transfer functions for locations in the Los Angeles region
A. M. Rogers, P. A. Covington, R.B. Park, R. D. Borcherdt, D. M. Perkins
1980, Open-File Report 80-1173
This report presents a collection of Nevada Test Site (NTS) nuclear explosion recordings obtained at sites in the greater Los Angeles, Calif., region. The report includes ground velocity time histories, as well as, derived site transfer functions. These data have been collected as part of a study to evaluate the...
Water quality of four lakes in Lakeville, Minnesota
L. H. Tornes, M.R. Have
1980, Water-Resources Investigations Report 80-66
Water-quality characteristics were determined for four selected lakes to provide background data for evaluating changes that may occur in the lakes because of urbanization. Precipitation of calcium carbonate is suggested by high pH values and a decrease in the calcium concentration when magnesium, sodium, and chloride concentrations increase. Pollution is...