On the air-scattering of gamma rays from thick uranium sources
Arthur Y. Sakakura
1955, Trace Elements Investigations 595
Semiquantative interpretation of data from airborne radioactivity surveying requires detailed knowledge of air-scattered gamma-ray intensity at considerable air distances from natural, thick uranium sources. Based on the concept of an elementary source of infinite thickness rather than on the classical point source, semi-empirical expressions, are developed for measured gamma-radiation intensities from . the...
Laboratory study of uranium-bearing lignite from western North Dakota and South Dakota
James M. Schopf, Ralph J. Gray, Charles J. Felix
1955, Trace Elements Investigations 572
The thoron-tartaric acid systems for the spectrophotometric determination of thorium
F. S. Grimaldi, Mary H. Fletcher
1955, Trace Elements Investigations 571
Thoron is popularly used for the spectrophotometric determination of thorium. An undesirable feature of its use is the high sensitivity of the reagent toward zirconium. This study describes the use of tartaric acid as a masking reagent for zirconium. Three tartaric acid-thoron systems, developed for the determination of thorium, differ...
Some physical properties of naturally irradiated fluorite
Robert Berman
1955, Trace Elements Investigations 569
Five samples of purple fluorite found in association with radioactive, materials, and a synthetic colorless control sample were studied and compared. Before and after heating, observations were made on specific gravity, index of refraction, unit-cell size, breadth of X-ray diffraction lines, and fluorescence. The purple samples became colorless on heating...
An improved glass sample holder for assaying low radioactivity samples
Francis J. Flanagan, B.A. McCall
1955, Trace Elements Investigations 568
Uraniferous magnetite-hematite deposit at the Prince Mine, Lincoln County, New Mexico
George Walton Walker, Frank W. Osterwald
1955, Trace Elements Investigations 567
Monazite in part of the southern Atlantic coastal plain
Lincoln Dryden
1955, Trace Elements Investigations 566
Conglomeratic sandstone strata at the base of the Brushy Basin member of the Morrison formation as related to uranium-vanadium deposits, southwestern Colorado and southeastern Utah
David A. Phoenix
1955, Trace Elements Investigations 565
In southwestern Colorado and southeastern Utah strata of conglomeratic sandstone are localized at the base of the Brush Basin shale member of the Morrison formation of Jurassic age. These strata are discrete lithologic units that contain sedimentary structures oriented in a prevailing easterly direction, they locally rest upon sandstone in...
Interim report on botanical prospecting for uranium in the Shinarump conglomerate at Deer Flat, White Canyon district, San Juan County, Utah
Albert Joseph Froelich, F. J. Kleinhampl
1955, Trace Elements Investigations 564
Stratigraphy and uranium content of the Chattanooga shale in the folded belt of Alabama, Georgia, and Tennessee
Lynn Glover
1955, Trace Elements Investigations 563
Reconnaissance for uranium in asphalt-bearing rocks in the western states
William James Hail Jr.
1955, Trace Elements Investigations 559
An appraisal of asphalt-bearing rocks as potential sources of uranium was made during 1953 and 1954 by examining deposits in 45 areas in California, Utah, Wyoming, Montana, New Mexico, Texas, Oklahoma, and Missouri. A total of 202 samples from these areas was analyzed for uranium. The oldest rocks sampled are...
Reconnaissance investigation of uranium occurrences in the Saratoga area, Carbon County, Wyoming
James G. Stephens, Marion Joseph Bergin
1955, Trace Elements Investigations 558
Separation of aluminum phosphate minerals from kaolinite by selective solution
Irving May, Roberta K. Smith
1955, Trace Elements Investigations 556
The determination of uranium in ores: separation by ethyl acetate extraction and spectrophotometric determination by the thiocyanate method in acetone-water medium
H.I. Feinstein
1955, Trace Elements Investigations 555
The spectrophotometric determination of uranium by means of the azide ion
H.I. Feinstein
1955, Trace Elements Investigations 544
The spectrophotometric determination of vanadium as thiocyanate in acetone-water medium
H.I. Feinstein
1955, Trace Elements Investigations 543
X-ray diffractometer studies of some vanadium silicates
John C. Hathaway
1955, Trace Elements Investigations 542
The association of uranium with carbonaceous materials on the Colorado Plateau
Irving A. Breger, Maurice Deul
1955, Trace Elements Investigations 539
Coffinite, a uranous silicate with hydroxyl substitution : a new mineral
Lorin Rollins Stieff, T. W. Stern, A.M. Sherwood
1955, Trace Elements Investigations 538
Selected annotated bibliography of the geology of uranium-bearing coal and carbonaceous shale in the United States
Thomas M. Kehn
1955, Trace Elements Investigations 533
Selected annotated bibliography of the geology of uraniferous phosphorites in the United States
Diane Curtis
1955, Trace Elements Investigations 532
Selected annotated bibliography and index map of thorium and rare-earth deposits in the United States and Alaska
Katharine L. Buck
1955, Trace Elements Investigations 531
Laboratory study of a core from uranium-bearing coal in the Red Desert, Sweetwater County, Wyoming
James M. Schopf, Ralph J. Gray
1955, Trace Elements Investigations 527
Selected annotated bibliography of the geology of sandstone-type uranium deposits in the United States
Robert E. Melin
1955, Trace Elements Investigations 526
Stratigraphy of the area between Hernando and Hardee counties, Florida
Keith B. Ketner, Laurence J. McGreevy
1955, Trace Elements Investigations 524
Eocene, Oligocene, Miocene, and Recent rocks are exposed between Hernando and Hardee Counties. Eocene and Oligocene formations are fossiliferous limestones but Miocene rocks are largely unconsolidated sands and clays in which fossils are scarce. Correlation of Miocene strata therefore is necessarily based mainly on lithology and stratigraphic position. Where rocks are altered...
