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Page 2616, results 65376 - 65400

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Publication Extents

Not all publications have extents, not all extents are completely accurate
The environmental control of sedimentary iron minerals
N.K. Huber
1958, Economic Geology (53) 123-140
An Eh-pH stability diagram is developed for hematite, magnetite, siderite, pyrite, and iron sulfide that indicates the relative position of their stability fields in a normal sea water system. With the exception of the magnetite-siderite relationship, Eh is much more critical than pH. In general terms, hematite is stable under...
The solusphere - its inferences and study
F. H. Rainwater, W. F. White
1958, Geochimica et Cosmochimica Acta (14) 244-249
Water is a fundamental geologic agent active in rock decomposition, erosion, and synthesis. Solutes in water are of particular interest to geochemists as sources of raw material for synthesis or as products of decomposition. When geochemical studies move from the laboratory into natural environment many variables relating to solute hydrology...
Geology of Kapingamarangi Atoll, Caroline Islands
Edwin D. McKee
1958, GSA Bulletin (69) 241-278
Kapingamarangi Atoll of the Caroline Islands consists of a peripheral reef, 1000-4000 feet across, surrounding a nearly circular lagoon which is 5 by 6 nautical miles in area and about 240 feet at maximum depth. Thirty-three islands, most of which are less than half a mile in length, are scattered...
Recent underwater surveys using low-frequency sound to locate shallow bedrock
W. O. Smith
1958, GSA Bulletin (69) 69-98
Underwater investigations at Lake Mead, Chicago, Passamaquoddy Bay, and on Long Island established the characteristics of sound waves that can be used in shallow geophysical exploration by the sonar method.At Lake Mead the sediments were for the most part clay of high water content which was easily penetrated by low-power...
The relation of phosphorites to ground water in Beaufort County, North Carolina
P.M. Brown
1958, Economic Geology (53) 85-101
Recent ground-water studies undertaken by the U.S. Geological Survey in cooperation with the North Carolina Division of Mineral Resources have delineated phosphorite deposits, tentatively regarded as being of middle Miocene age, in Beaufort County. These deposits lie unconforma-bly on limestone of Eocene age and are unconformably overlain by late Miocene...
Uranium deposits under conglomeratic sandstone of the Morrison Formation, Colorado and Utah
D. A. Phoenix
1958, GSA Bulletin (69) 403-418
In southwestern Colorado and southeastern Utah, strata of conglomeratic sandstone are localized at the base of the Brushy Basin Member of the Morrison Formation of Jurassic age. These discrete lithologic units contain sedimentary structures oriented in a prevailing easterly direction. They are believed to cover about one-third of the underlying...
Application of statistical methods to the analysis of ground‐water levels
Irwin Remson, J.R. Randolph
1958, Eos, Transactions, American Geophysical Union (39) 75-83
Valuable hydrologic information can be obtained from statistical analysis of water‐level trends. The time‐series and the functional‐equation approaches are applied to New Jersey well records representing different hydrologic conditions. The results are valuable as concise summaries of the records, for extrapolating observed data, for interpolating between measurements, and for estimating...
Reconnaissance study of erosion and deposition produced by the flood of August 1955 in Connecticut
M. Gordon Wolman, J.P. Eiler
1958, Eos, Transactions, American Geophysical Union (39) 1-14
A large area in the valley bottoms in Connecticut was inundated by the flood of August 1955. Relative to the total area flooded that part permanently modified by the flow was surprisingly small. Although great in some places, the distribution of these permanent modifications of channel and flood plain was...
Limestone aquifers of Maryland
Edmond G. Otton, Claire A. Richardson
1958, Economic Geology (53) 722-736
Limestone rocks are an important source of ground water in the Piedmont and Appalachian areas of Maryland. The major limestone aquifers are the Cockeysville and Wakefield marbles and the Silver Run, Tomstown, Frederick, Grove, Waynesboro, Elbrook, Conococheague, Beekmantown, Stones River, Tonoloway, Helderberg and Greenbrier formations. Drilled and dug wells and...
The thermal regime of an Arctic lake
Max C. Brewer
1958, Eos, Transactions, American Geophysical Union (39) 278-284
Much of the Arctic coastal plain in Alaska is covered by shallow lakes. Those in the Barrow area, which are believed to be representative of most of the lakes in the coastal plain, are generally either two to three feet or six to nine feet deep. The shallow lakes can...
The deuterium content of water in some volcanic glasses
I. Friedman, R. L. Smith
1958, Geochimica et Cosmochimica Acta (15) 218-228
The deuterium-hydrogen composition (relative to Lake Michigan water = 0.0) of water extractsd from coexisting perlite and obsidian from eleven different localities was determined. The water content of the obsidians is generally from 0.09 to 0.29 per cent by weight, though two samples from near Olancha, California, contain about 0.92...
The water, deuterium, gas and uranium content of tektites
I. Friedman
1958, Geochimica et Cosmochimica Acta (14) 316-324
The water content, deuterium concentration of the water, total gas and uranium contents were determined on tektite samples and other glass samples from Texas, Australia, Philippine Islands, Java, French Indo-China, Czechoslovakia, Libyan Desert, Billiton Island, Thailand, French West Africa, Peru, and New Mexico. The water content ranges from 0.24 per...