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Page 5935, results 148351 - 148375

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Publication Extents

Not all publications have extents, not all extents are completely accurate
DDT in loons
L. N. Locke, George E. Bagley
1964, Book chapter, Effects of Pesticides on Fish and Wildlife
No abstract available....
Water off and on
W.E. Green, L.G. MacNamara, F.M. Uhler
J.P. Linduska, editor(s)
1964, Book chapter, Waterfowl Tomorrow
Geographic centers of the United States
Water Resources Division, U.S. Geological Survey
1964, Report
There is no generally accepted definition of geographic center, and no completely satisfactory method for determining it. Because of this, there may be as many geographic centers of a State or country as there are definitions of the term. The geographic center of an area may be defined as the...
Specific yield - laboratory experiments showing the effect of time on column drainage
R.C. Prill, A.I. Johnson, D. A. Morris
1964, Report
The increasing use of ground water from many major aquifers in the United States has required a more thorough understanding of gravity drainage, or specific yield. This report describes one phase of specific yield research by the U.S. Geological Survey's Hydrologic Laboratory in cooperation with the California Department of Water...
Water quality of the Swatara Creek Basin, PA
Edward F. McCarren, J.W. Wark, J.R. George
1964, Report
The Swatara Creek of the Susquehanna River Basin is the farthest downstream sub-basin that drains acid water (pH of 4.5 or less) from anthracite coal mines. The Swatara Creek drainage area includes 567 square miles of parts of Schuylkill, Berks, Lebanon, and Dauphin Counties in Pennsylvania.To learn what environmental factors...
Geology applied to study of coal mine bumps and mining methods at Sunnyside, Utah
Frank W. Osterwald, C. Richard Dunrud
1964, Open-File Report 64-122
Coal mine bumps are a serious hazard to life and property in the mines of east-central Utah. Research into geologic factors associated with these bumps indicates that the bumps are spatially and genetically related to structural and stratigraphic features. Some bumps are directly related to stress accumulation along faults, either...
Lake Superior seismic experiment
W. H. Jackson, B. L. Tibbetts
1964, Open-File Report 64-89
During the Lake Superior seismic experiment, an International Upper Mantle cooperative program in July 1965, the U. S. Geological Survey provided a total of 8 mobile seismic-recording systems. For the first phase of the experiment the systems were arranged in two groups of 4; one group at the western end...
The geology, mineralogy and paragenesis of the Castrovirreyna lead-zinc-silver deposits, Peru
Richard Wheatley Lewis Jr.
1964, Open-File Report 64-103
The Castrovirreyna mining district lies in the Andean Cordillera of South Central Peru, and has been worked sporadically since its discovery in 1591. Supergene silver ores were first mined. Currently the district produces about 20,000 tons of lead-zinc ore and 5000 tons of silver ore annually. The district is underlain by...
Subsurface geology of the upper Cretaceous Kirtland and Fruitland formations of the San Juan Basin, New Mexico and Colorado
James E. Fassett
1964, Open-File Report 64-53
The San Juan Basin is an asymmetrical structural basin in northwestern New Mexico and southwestern Colorado. The basin contains sedimentary rocks ranging from Cambrian through Recent in age and attaining a maximum thickness between 14,000 and 15,000 feet. The Upper Cretaceous sedimentary rocks exceed 8,000 feet in thickness and can...