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Page 1388, results 34676 - 34700

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Publication Extents

Not all publications have extents, not all extents are completely accurate
An automatic suspended-sediment sampler
James C. Mundorff
1957, Open-File Report 57-80
The automatic suspended-sediment sampler was originally designed to obtain a suspended-sediment sample from a single point in a stream or reservoir during a rise in stage. The sampler was intended to be used during periods when manually-operated standard samplers could not be used. If the sampling site is remote from the field office...
Ground water of the Columbia Basin
R. C. Newcomb
1957, Open-File Report 57-81
Part of the water that infiltrates from the surface reaches a zone of saturation whence it percolates toward the outlet and thereby is delayed in its course to the sea. This ground water is one form of natural storage which has different degrees of effect on stream flow in different...
Water levels in observation wells in Santa Barbara County, California, in 1956
K. S. Muir, P.M. Merritt
1957, Open-File Report 57-78
Investigation of the ground-water resources of Santa Barbara County was continued during 1956 by the Geological Survey in cooperation with the Santa Barbara County Water Agency. Monthly water-level recorders were operated. Earlier measurements, covering the period 1941 through 1953, have been published in Geological Survey water-Supply Papers; those for 1954...
Geology of the Basin Quadrangle, Montana
Edward Thompson Ruppel
1957, Open-File Report 58-87
The Basin quadrangle, in the northern part of the Boulder Mountains between Butte and Helena, Montana, is underlain principally by igneous rocks that include Late Cretaceous quartz latitic and andesitic Elkhorn Mountains volcanics, quartz monzonite and related rocks of the Boulder batholith, Oligocene(?) quartz latitic volcanic rocks, and late Miocene(?)-early...
A gamma-ray absorption method for the determination of uranium in ores
Alfred F. Hoyte
1957, Open-File Report 57-55
Current radioactivity methods used for the determination of uranium in ores are based on the assumption that secular equilibrium exists between the daughter products. Eichholz has developed a method which is claimed to be independent of the degree of equilibrium, but it has been found to be inadequate when used...
Continued utilization of ground-water storage basins
H. E. Thomas
1957, Open-File Report 57-109
Doubtless most of you are more familiar with surface reservoirs, their capabilities and limitations, than you are with ground-water reservoirs. I believe that this is true of people in general, even the experts. And because of our inadequate knowledge of ground-water reservoirs, our use of them creates problems that are...