Tables for evaluating Bateman equation coefficients for radioactivity calculations
F.J. Flanagan, F. E. Senftle
1954, Analytical Chemistry (26) 1595-1600
Tables of decay constants and functions thereof are presented to simplify the problem of calculating the constants involved in the Bateman equation. These tables make it possible to calculate any constant involved in any of the four radioactive series by a maximum of three mathematical operations, either by three divisions...
Quantitative radiochemical method for determination of major sources of natural radioactivity in ores and minerals
J. N. Rosholt
1954, Analytical Chemistry (26) 1307-1311
When an ore sample contains radioactivity other than that attributable to the uranium series in equilibrium, a quantitative analysis of the other emitters must be made in order to determine the source of this activity. Thorium-232, radon-222, and lead-210 have been determined by isolation and subsequent activity analysis of some...
Geology of the Bedford shale and Berea sandstone in the Appalachian basin
J. F. Pepper, Wallace De Witt Jr., D. F. Demarest
1954, Professional Paper 259
No abstract available....
A theoretical study of alpha star populations in loaded nuclear emulsions
F. E. Senftle, T. A. Farley, L. R. Stieff
1954, Geochimica et Cosmochimica Acta (6) 197-207
This theoretical study of the alpha star populations in loaded emulsions was undertaken in an effort to find a quantitative method for the analysis of less than microgram amounts of thorium in the presence of larger amounts of uranium. Analytical expressions for each type of star from each of the...
Bericht über die Vorträge bei der Zweiten Tagung über Tone und Tonmineralien an der University of Missouri, Columbia, Miss., 15.–17. Oktober 1953
E.A. Hauser
1954, Kolloid-Zeitschrift (135) 51-56
[No abstract available]...
Double-chamber electrode for spectrochemical determination of chlorine and other halogens
L. H. Azevedo de Paiva, A. W. Specht, R. S. Harner
1954, Spectrochimica Acta (6) 331-333
A double-chamber, graphite electrode, suitable for d.c. arc determination of halogens by means of the alkaline earth halide bands, is described. An upper chamber holds the alkaline earth compound and an interconnected, lower chamber holds the halogen compound.This arrangement assures that there will be an abundance of alkaline earths in...
Geochemical work of the Geochemistry and Petrology Branch U.S. Geological Survey
E. Ingerson
1954, Geochimica et Cosmochimica Acta (5) 20-39
The current geochemical work of the Geochemistry and Petrology Branch of the U.S. Geological Survey is outlined under the headings of geochemical compilations, laboratory projects, and field-laboratory projects. Some thirty-seven active projects are described. Six others are mentioned which are planned for the near future. The importance and value of...
A chemical-spectrochemical method for the determination of rare earth elements and thorium in cerium minerals
H. J. Rose Jr., K. J. Murata, M. K. Carron
1954, Spectrochimica Acta (6) 161-168
In a combined chemical-spectrochemical procedure for quantitatively determining rare earth elements in cerium minerals, cerium is determined volumetrically, a total rare earths plus thoria precipitate is separated chemically, the ceria content of the precipitate is raised to 80·0 percent by adding pure ceria, and the resulting mixture is analyzed for...
Killers of the Great Lakes
James W. Moffett
1954, Book chapter, The book of knowledge annual, 1954
No abstract available....
Method of producing plastic impressions of fish scales without using heat
Stanford H. Smith
1954, Progressive Fish-Culturist (16) 75-78
No abstract available....
Fluctuations in production and abundance of commercial species in the Red Lakes, Minnesota, with special reference to changes in the walleye population
Lloyd L. Smith Jr., Laurits W. Krefting
1954, Transactions of the American Fisheries Society (83) 131-160
The Red Lakes in northwestern Minnesota comprise 275,000 acres of water which support a commercial fishery producing up to 1.5 million pounds of fish per year. Walleye, Stizostedion vitreum vitreum (Mitchill), and yellow perch, Perca flavescens (Mitchill), are the principal species. Statistics for the past 37 years have been analyzed...
Relationship of length of fish to incidence of sea lamprey scars on white suckers, Catostomus commersoni, in Lake Huron
A.E. Hall, Oliver R. Elliott
1954, Copeia (1954) 73-74
During the course of experimental fishing operations conducted by the staff of Hammond Bay Fishery Laboratory (a field station of Great Lakes Fishery Investigations) in 1950-1951, length measurements and records of scarring incidence and number of scars per individual were obtained for a sample of 552 white suckers, Catostomus commersoni...
Stability of dilute solutions of uranium, lead, and thorium ions
R.G. Milkey
1954, Analytical Chemistry (26) 1800-1803
Standard solutions and samples containing a few micrograms of metallic ions per milliliter are frequently used in determination of trace elements. It is important to know whether the concentrations of such solutions remain constant from day to day. The stability of dilute solutions of three metallic ions-uranium, lead, and thorium-has...
Studies of river morphology
Luna Bergere Leopold
1954, Science (119) 326-327
A number of generalizations concerning the behavior and natural characteristics of river channels have been developed by the U.S. Geological Survey in several recently completed studies of river morphology. Measurements of parameters such as the discharge, suspended load, bed material, velocity of flow, channel slope, and channel shape indicate that...
Composition of the continental plates
J. Gilluly
1954, Tschermaks Mineralogische und Petrographische Mitteilungen (4) 360-369
The structures of continental plates and of oceanic basins suggested by several seismologists are utilized to estimate the relative volumes of sial and sima in the earth's crust. It seems that sial of the composition of the average igneous rock constitutes fully 26% and perhaps as much as 43% of...
Feeding mechanism of the sea lamprey and its effect on host fishes
Robert E. Lennon
1954, Fishery Bulletin of the U.S. Fish and Wildlife Service (56) 247-293
Abstract has not been submitted...
Fluctuations in growth and year-class strength of the walleye in Saginaw Bay
Ralph Hile
1954, Fishery Bulletin of the U.S. Fish and Wildlife Service (56) 7-59
Abstract has not been submitted...
The flood control controversy: Big dams, little dams, and land management
Luna Bergere Leopold, Thomas Maddock Jr.
1954, Book
The purpose of this book is to investigate the facts regarding flood control, a subject that has given rise to extreme controversy in the United States in recent years. The question of flood control is obviously a vital one not only to the United States but to many other countries....
Bedrock geology of the Lake Medora quadrangle, Michigan
Henry Rowland Cornwall
1954, Geologic Quadrangle 52
No abstract available....
The White Pine copper deposit, Ontonagon County, Michigan
Walter S. White, James C. Wright
1954, Science (119) 354-355
No abstract available....
Spectrophotometric determination of uric acid and some redeterminations of its solubility
D. R. Norton, M. A. Plunkett, F. A. Richards
1954, Analytical Chemistry (26) 454-457
The present study was initiated in order to develop a rapid and accurate method for the determination of uric acid in fresh, brackish, and sea water. It was found that the spectrophotometric determination of uric acid based upon its reaction with arsenophosphotungstic acid reagent in the presence of cyanide ion...
Preliminary geologic map of the Horse Range Mesa quadrangle, Colorado
Fred W. Cater Jr.
1954, Miscellaneous Field Studies Map 29
No abstract available....
Studies of unconsolidated sediments - I: Quartz fabric of current and wind ripple marks
E. Ingerson, J.L. Ramisch
1954, Tschermaks Mineralogische und Petrographische Mitteilungen (4) 117-124
[No abstract available]...
Spectrochemical determination of thorium in monazite by the powder-d.c. arc technique
C. V. Dutra, K. J. Murata
1954, Spectrochimica Acta (6) 373-382
Thorium in monazite is determined by a d.c. carbon-arc technique using zirconium as the internal standard. The analytical curve for Th II 2870.413 Å/Zr II 2844-579 Å is established by means of synthetic standards containing graduated amounts of thoria and 0.500 per cent zirconia in pegmatite base (60 parts quartz,...
Discussion of “expansion and increase in permeability of carbonate rocks on heating”
Clifford A. Kaye, John C. Maxwell, Peter Verrall
1953, Eos, Transactions, American Geophysical Union (34) 953-954
Maxwell and Verrall's interesting study raises a thought. If limestones expand on heating and thereby receive a permanent set, as this paper demonstrates, do we not have here a means of determining the maximum temperature to which a particular limestone was ever subjected and indirectly thereby its maximum depth of...
