Kathleen McQueen
1957, Trace Elements Memorandum 1069
No abstract available...
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Publication Extents
Not all publications have extents, not all extents are completely accurate1957, Bulletin 1048
Abstracts of current literature pertaining to the physics of the solid earth and to geophysical exploration....
1957, Trace Elements Memorandum 1006
No abstract available...
Thomas E. Mullens
1957, Trace Elements Memorandum 1001
No abstract available...
Luna Bergere Leopold
Harmon Craig, editor(s)
1957, Conference Paper, Proceedings: Conference on recent research in climatology
In the past few days we have heard a number of scientists, gathered here at Scripps Institution of Oceanography, discuss research work which, in one manner or another, bears on problems related to water resources. They have been discussing, particularly, problems in the field of climatology, and have speculated on...
J.S. Wahlberg, D. L. Skinner, L. F. Rader Jr.
1957, Analytical Chemistry (29) 954-957
Need for a more rapid volumetric method for the routine determination of uranium in uranium-rich materials has led to the development of a method that uses titanous sulfate as a reductant before oxidimetric titration. Separation of the hydrogen sulfide group is not necessary. Interfering elements precipitated by cupferron are removed...
R.G. Milkey, M. H. Fletcher
1957, Journal of the American Chemical Society (79) 5425-5435
Thorium reacts with morin to yield a yellow complex that fluoresces when irradiated with ultraviolet light. The effect on the fluorescence of such variables as concentration of acid, alcohol, thorium, morin, and complex; time, temperature and wave length of exciting light are studied to determine experimental conditions yielding maximum fluorescence....
L. L. Thatcher, F. B. Barker
1957, Analytical Chemistry (29) 1575-1578
The fluorophotometric determination of uranium was studied to develop a procedure applicable to the routine analysis of waters. Three grams of the high carbonate flux are used in a dilution procedure with spiking. Because of the comparatively high reflectivity of this large disk and the low uranium concentration, a correction...
Vernon C. Applegate, John H. Howell, A.E. Hall, Manning A. Smith
1957, Special Scientific Report - Fisheries 207
The problem of controlling the sea lamprey in the upper Great Lakes has received considerable attention in recent years and requires no review here (Applegate and Moffett. 1955). Electromechanical weirs and traps and electrical barriers have been developed which can be successfully employed to block and/or destroy spawning runs of...
Ralph Hile
1957, Special Scientific Report - Fisheries 226
The major purpose of this publication is to present an annotated bibliography of papers resulting from Federal investigations on the Great Lakes fish and fisheries since the formal initiation of a continuing research program by the Fish and Wildlife Service. It is believed that this purpose can be served best...
F.J. Flanagan
1957, Geochimica et Cosmochimica Acta (12) 315-322
The rank correlation coefficient, rs, which involves less computation than the product-moment correlation coefficient, r, can be used to indicate the degree of relationship between two elements. The method is applicable in situations where the assumptions underlying normal distribution correlation theory may not be satisfied. Semi-quantitative spectrographic analyses which are reported as...
H. R. Cornwall, H. J. Rose Jr.
1957, Geochimica et Cosmochimica Acta (12) 209-224
The distribution of minor elements in three basaltic flows of the Keweenawan series, of Michigan, is related to differentiation in the flows. Thus, nickel is most abundant in the early differentiates; nickel, chromium, and barium are generally deficient in the pegmatites, which formed late; whereas copper, vanadium, yttrium, and other...
H.I. Feinstein
1957, Microchemical Journal (1) 237-244
[No abstract available]...
Stanford H. Smith
1957, Transactions of the American Fisheries Society (86) 409-418
Early explorations on the Great Lakes were concerned largely with things easily collected or observed—common organisms, water levels, surface temperatures … Even when more scientific studies were undertaken, they were at first scattered and small-scale. Effective surveys became possible only through inter-agency cooperation which permits a pooling of facilities, staff,...
F. B. Barker, L. L. Thatcher
1957, Analytical Chemistry (29) 1573-1575
The proposed method embodies a barium sulfate carrier precipitation, filtration through molecular filter membranes, and collection of activity after prescribed aging period. The method is sufficiently accurate and precise to indicate the potability of water and for use in general studies of radium in chemical hydrology. Amounts of radium as...
F. E. Senftle, L. Stieff, F. Cuttitta, P.K. Kuroda
1957, Geochimica et Cosmochimica Acta (11) 189-193
The isotopic abundances of uranium and the radium activity ratios of eleven samples of uranium ore from the Colorado Plateau have been measured. No significant variation in the isotopic abundance of the uranium was noted; with'in the experimental error, the average U235/U238 ratio is 137.7. There is a significant variation in...
J. N. Rosholt
1957, Analytical Chemistry (29) 1398-1408
Study of the state of equilibrium of any natural radioactive source requires determination of several key nuclides or groups of nuclides to find their contribution to the total amount of radioactivity. Alpha activity measured by scintillation counting is used for determination of protactinium-231, thorium-232, thorium-230, and radium-226. The chemical procedures...
J. M. Axelrod, I. Adler
1957, Analytical Chemistry (29) 1280-1281
An x-ray spectrographic method for the determination of rubidium and cesium was developed, using the internal-standard method and a four-channel flat-crystal spectrograph. The sensitivity is within 0.1% for cesia and 0.02% for rubidia; the precision is within 10% of the amount present. Results agree well with those obtained by flame...
K. J. Murata, H. J. Rose Jr., M. K. Carron, J.J. Glass
1957, Geochimica et Cosmochimica Acta (11) 141-161
In a continuation of a study reported previously, rare-earth elements and thorium have been determined in monazite, allanite, cerite, bastnaesite, and a number of miscellaneous cerium-earth minerals. A quantity called sigma (∑), which is the sum of the atomic percentages of La, Ce, and Pr, is proposed as an index...
F. S. Grimaldi
1957, Analytical Chemistry (29) 848-851
This paper presents a selective iodate separation of thorium from nitric acid medium containing d-tartaric acid and hydrogen peroxide. The catalytic decomposition of hydrogen peroxide is prevented by the use of 8quinolinol. A few micrograms of thorium are separated sufficiently clean from 30 mg. of such oxides as cerium, zirconium,...
J.L. George, R.F. Darsie, P. F. Springer
1957, Journal of Wildlife Management (21) 42-53
No abstract available. ...
John R. Henderson Jr., Natalie S. Tyson
1957, Geophysical Investigations Map 159
No abstract available....
P. T. Hayes
1957, Geologic Quadrangle 98
No abstract available....
F. C. Koopman
1957, Water Supply Paper 1425
The Crow Creek Sand Lake area is in the northeastern part of South Dakota and consists of flat to gently rolling land. It is roughly 25 miles square and is bounded on the west by the James River, on the north by the North Dakota State line, and on the...
Saul Aronow
1957, The Journal of Geology (65) 410-427
Devils and Stump lakes in eastern North Dakota have been diminishing in area more or less continuously since the land around them was settled in the 1880's. Desiccations similar to the current one have occurred at least once and possibly two or more times in the past and are indicated...