Preliminary Report on the Mineral Hill Monazite Deposits, Lemhi County, Idaho (open access)

Preliminary Report on the Mineral Hill Monazite Deposits, Lemhi County, Idaho

From abstract: The Mineral Hill monazite deposits, 3 to 5 miles northeast of the town of Shoup, Lemhi County, Idaho, were investigated by the U. S. Geological Survey in July 1952. The deposits are replacement veins and lenses along shears in a pendant, principally of pre-Cambrian biotite gniess, about 4 to 5 miles in size and enclosed by granite of the Idaho batholith. The veins consist predominantly of calcite, monazite, and allanite, and contain minor quantities of barite, magnetite, rutile, and apatite.
Date: April 1953
Creator: Sharp, W. N. & Cavender, W. S.
System: The UNT Digital Library
Radioactivity of coal and associated rocks in the anthracite fields of eastern Pennsylvania (open access)

Radioactivity of coal and associated rocks in the anthracite fields of eastern Pennsylvania

A report regarding the radioactivity of coal and associated rocks in the Anthracite Feilds of Eastern Pannsylvania.
Date: April 1953
Creator: Welch, Stewart W.
System: The UNT Digital Library
Theoretical study of the tunnel-boundary lift interference due to slotted walls in the presence of the trailing-vortex system of a lifting model (open access)

Theoretical study of the tunnel-boundary lift interference due to slotted walls in the presence of the trailing-vortex system of a lifting model

Report presenting some equations that give the interference on the trailing-vortex system of a uniformly loaded finite-span wing in a circular tunnel containing partly open and partly closed walls, with special reference to symmetrical arrangements of the open and closed portions. Methods are given for extending the equations to include tunnel shapes other than circular.
Date: April 7, 1953
Creator: Matthews, Clarence W.
System: The UNT Digital Library
The Lead-Uranium Ages of Some Uraninite Specimens From Triassic and Jurassic Sedimentary Rocks of the Colorado Plateau (open access)

The Lead-Uranium Ages of Some Uraninite Specimens From Triassic and Jurassic Sedimentary Rocks of the Colorado Plateau

Report discussing the lead-uranium age of 21 black uranium ores from the Colorado Plateau, which were selected from a group of 80 samples from the same area because they were considered to be most reliable for age determinations.
Date: April 1953
Creator: Stieff, L. R. & Stern, T. W.
System: The UNT Digital Library
Progress report of southeastern monazite exploration, 1952 (open access)

Progress report of southeastern monazite exploration, 1952

A progress report of Southeastern Monazite Exploration in 1952.
Date: April 1953
Creator: Overstreet, William C.; Theobald, P. K.; White, A. M.; Cupples, N. P.; Caldwell, Dabney W. & Whitlow, Jesse W.
System: The UNT Digital Library
Meson Production By High-Energy Neutrons (open access)

Meson Production By High-Energy Neutrons

The angular distribution of charged x mesons produced by 300 <x> 30 Mev neutrons on C12 and Be9 have been studied. An analysis of the kinematics for meson production in a nucleon-nucleon collision indicates a fairly well defined center-of-mass system.
Date: April 23, 1953
Creator: Neher, Leland K.
System: The UNT Digital Library
Preliminary Report on the Results of Geobotanical Prospecting on the South Flank of Haystack Butte, McKinley County, New Mexico (open access)

Preliminary Report on the Results of Geobotanical Prospecting on the South Flank of Haystack Butte, McKinley County, New Mexico

Abstract: The absorber plant method of geobotanical prospecting was tested systematically over the bench formed by the Jurassic Todilto limestone on the south flank of Haystack Butte, McKinley County, N. Mex. This portion of the bench includes the largest known uranium ore body in limestone and most has been extensively drilled by private enterprise. Geobotanical prospecting was accomplished to provide control data. Comparison of the geobotanical anomalies with the available drill hole information from the mining companies and Atomic Energy Commission geologists have shown that the known ore occurrences would have been outlined by the results of the tree sampling. In addition some geobotanical anomalies are indicated in drilled areas in which ore was not reported and in areas not physically explored at the time of sampling. These anomalies may represent mineralized ground below ore grade or new ore deposits.
Date: April 1953
Creator: Narten, Perry F.
System: The UNT Digital Library
Search for Uranium in Western United States (open access)

Search for Uranium in Western United States

Report discussing the search for uranium in the western United States. Overall, no single deposit of major importance had been discovered at the time of this report's publication, but minable deposits had been discovered in the Colorado Plateau, and in areas of the Dakotas, Wyoming, Idaho, and New Mexico.
Date: April 1953
Creator: McKelvey, V. E.
System: The UNT Digital Library
Results of Reconnaissance for Radioactivity in Parts of the Alma District, Park County, Colorado (open access)

Results of Reconnaissance for Radioactivity in Parts of the Alma District, Park County, Colorado

Abstract: Pitchblende was discovered in July 1951 in the Alma mining district, Park County, Colo0 , by the U0 S. Geological Survey acting on behalf of the U. So Atomic Energy Commission. The pitchblende is associated with Tertiary veins of three different geologic environments: 1) veins in pre-Cambrian rocks, 2) the London vein system the footwall block of the London fault, and 3) veins in a mineralized area east of the Cooper Gulch fault. Pitchblende is probably not associated with silver-lead replacement deposits in dolomite. Secondary uranium minerals, as yet undetermined, are associated with pitchblende on two London vein system mine dumps, and occur in oxidized vein material.Lfrom dumps of mines in the other environments. Although none of the known occurrences are of commercial importance, the Alma district is considered a moderately favorable area in which to prospect for uranium ore, because twenty-four of the forty-three localities examined show anomalous radioactivity; samples from anomalously radioactive localities, which include mine dumps and some underground workings, have uranium contents ranging from 0.001 to l.66 percent.
Date: April 1953
Creator: Pierson, Charles Thomas & Singewald, Q. D.
System: The UNT Digital Library
Preliminary reconnaissance survey for thorium, uranium, and rare-earth oxides, Bear Lodge Mountains, Crook County, Wyoming (open access)

Preliminary reconnaissance survey for thorium, uranium, and rare-earth oxides, Bear Lodge Mountains, Crook County, Wyoming

A report regarding a preliminary reconnaissance survey for thorium, uranium, and rare-earth oxides in the bear lodge mountains, in Crook County, Wyoming. "The purpose of this reconnaissance was to obtain information on the mode of occurrence, extent, and reserves of these deposits. This work was done on behalf of the Division of Raw Materials of the Atomic Energy Commission."
Date: April 1953
Creator: Wilmarth, V. R. & Johnson, Donald H.
System: The UNT Digital Library
A Transonic Wind-Tunnel Investigation of the Trim and Dynamic Response Characteristics of the Horizontal Tail of a 1/7-Scale Model of the Complete Tail of the Grumman XF10F-1 Airplane (open access)

A Transonic Wind-Tunnel Investigation of the Trim and Dynamic Response Characteristics of the Horizontal Tail of a 1/7-Scale Model of the Complete Tail of the Grumman XF10F-1 Airplane

"An investigation was made of the trim and dynamic response characteristics of the free-floating horizontal tail of a 1/7-scale model of the complete tail of the Grumman XF10F-1 airplane in the Langley 8-foot transonic tunnel at Mach numbers up to 1.13. The complete tail was mounted in the tunnel on a 3 degree conical support body. Various configurations were investigated. A loss in damping of the horizontal tail at transonic speeds was shown by both tunnel and flight tests" (p. 1).
Date: April 28, 1953
Creator: Luoma, Arvo A.
System: The UNT Digital Library
Identification and Occurrence of Uranium and Vanadium Minerals From the Colorado Plateaus (open access)

Identification and Occurrence of Uranium and Vanadium Minerals From the Colorado Plateaus

Abstract: "This report, designed to make available to field geologists and others information on identification and occurrence of uranium minerals of the Colorado Plateaus, contains physical properties, X-ray data, and in some instances results of chemical and spectrographic analysis of 24 uranium and 17 vanadium minerals. Also included is a table giving the optical properties of uranium minerals and a list of locations of mines from which the minerals have been identified."
Date: April 1953
Creator: Weeks, A. D. & Thompson, M. E.
System: The UNT Digital Library