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2,854 Matching Results
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Initial Measurements on the Angular Distribution of Deuterium Plasma Produced by a Pulsed Spark Source
Abstract: "The deuterium plasma which is ejected by a 6000-ampere pulsed current through a rail-type spark source has a yield in the forward direction which is a factor of 5 to 10 greater than that in the perpendicular direction. This effect is believed to be due to the magnetic propulsion of the plasma."
Date:
March 24, 1955
Creator:
Bostick, W. H.
Object Type:
Report
System:
The UNT Digital Library
Preliminary Report on the Uranium Occurrence of the Green Velvet Claims, Inyo County, California
Abstract: Several uranium occurrences have been discovered in the Coso lake beds, Owens Valley, California, along the west flank of the Coso Range.
Date:
October 1955
Creator:
Hetland, Donald L.
Object Type:
Report
System:
The UNT Digital Library
Airborne Reconnaissance Project, Ruby Range and Sweetwater Basin, Montana
Abstract: A low-level airborne radioactivity survey of parts of Beaverhead and Madison Counties in southwestern Montana was undertaken from June 6 to October 14, 1955. Flying centered around the Ruby Range-Sweetwater Basin area and concentrated on the Precambrian metamorphic complex and Tertiary lake-bed sediments. No commercial uranium deposits were discovered, and no extensions were found of the few known small occurrences. Five areas of high background detected through the survey were investigated on the ground.
Date:
April 1958
Creator:
Pruitt, Robert G., Jr. & Magleby, Dan N.
Object Type:
Report
System:
The UNT Digital Library
Geology of the Uniferous Bog Deposit at Pettit Ranch, Kern County, California
Abstract: Uranium associated with peat humus was discovered in a boggy meadow in the Sierra Nevada of Kern County, California, in the fall of 1955.
Date:
October 15, 1957
Creator:
Bowes, William A.; Bales, W. E. & Haselton, G. M.
Object Type:
Report
System:
The UNT Digital Library
Preliminary Regional Mapping in the Ruby Quadrangle, Arizona
Abstract: Reconnaissance mapping in the Ruby Quadrangle, Arizona, indicates the existence of a complex assemblage of volcanic rocks and associated sediments, divisible into a younger and older series.
Date:
May 1954
Creator:
Webb, Bruce P. & Coryell, Kirby C.
Object Type:
Report
System:
The UNT Digital Library
Primary Sedimentary Trend Indicators as Applied to Ore Finding in the Carrizo Mountains, Arizona and New Mexico
Abstract: Field and laboratory study of primary sedimentary features of the Salt Wash sandstone was undertaken to learn if these structures can be of use in finding hidden deposits of ore and also if they have influenced the localization of either individual ore deposits or larger mineralized districts.
Date:
August 1953
Creator:
Stokes, William Lee
Object Type:
Report
System:
The UNT Digital Library
Fracture Pattern of the Zuni Uplift: Final Report
Abstract: The objectives of this study have been to determine the nature of the major fracture pattern of the Zuni uplift; to analyze this pattern for evidence of the mode of origin of the uplift; and to compare the fracturing in the ore areas with that elsewhere on the uplift to see whether diagnostic features exist hat might make it possible to indicate other favorable areas.
Date:
June 1953
Creator:
Gilkey, Arthur K.
Object Type:
Report
System:
The UNT Digital Library
Fracture Studies in the Lucero Uplift, New Mexico: Final Report
Objectives: The purpose of this project was to study in detail the factors controlling the formation of fractures and the fracture pattern actually developed in an area transitional between Colorado Plateau and Basin and Range type structures.
Date:
December 1953
Creator:
Duschatko, Robert W.
Object Type:
Report
System:
The UNT Digital Library
[Marysvale Region Study], Annual Report: June 30, 1953-April 1, 1954, Part 1
First part of an annual report describing studies conducted by researchers at Columbia University to surveyuranium mineralization in the Marysvale, Utah region: "Part I deals with field studies and mineralogical data derived from the laboratory examination of suites collected during the previous summer" (p. 5).
Date:
April 1954
Creator:
Kerr, Paul F.; Lapham, Davis M.; Bodine, Marc W., Jr.; Hamilton, P. K. & Bethke, Philip Martin
Object Type:
Report
System:
The UNT Digital Library
Knob Creek Monazite Placer, Cleveland County, North Carolina
From abstract: The area comprising the first flood plain downstream from the headwaters of Knob Creek was one of three monazite placer deposits near Shelby, N. C., recommended by the Geological Survey for investigation by the Bureau of Mines as a joint effort by the above two agencies. Past production of monazite from the headwaters of this stream and its drainage of an area of known source rocks were factors influencing this selection. Drilling of the deposit was started on November 26, 1951, and completed December 29, 1951. Twenty-two churn-drill holes were completed to bed-rock on 112 acres of this flood plain for a total depth of 433 feet of vertical drilling.
Date:
January 1953
Creator:
Griffith, R. F. & Overstreet, William C.
Object Type:
Report
System:
The UNT Digital Library
Atomic Energy Facts: a Summary of Atomic Activities of Interest to Industry
Introduction: Atomic Energy Facts is designed to serve as an introduction to nuclear operations in the United States and as a handbook of related information for the use of industrial firms and other active or interested in atomic energy.
Date:
September 1957
Creator:
U.S. Atomic Energy Commission
Object Type:
Report
System:
The UNT Digital Library
Investigation of Shinarump Channels on Oljetoh Mesa, Arizona - Utah
From to the files: The Shinarump-Moenkopi contact on Oljetoh Mesa in the Monument Valley district, Arizona-Utah, was examined from November 5 to 15, 1951, to determine the location of and the mineralization in Shinarump channels. Twenty-seven distinct channel outcrops were located and examined. Three of these channel outcrops are mineralized and the remaining 24 are barren. Plate I shows the distribution of the Shinarump, the Moenkopi, and the DeChelly member of the Cutler formation; the location of the Shinarmp channel outcrops; the channel trend where there is good evidence for such a trend. The Hoskinrnini tongue of the Cutler was mapped with the Moenkopi as it is not a good mappable unit in this area. The three mineralized outcrops are indicated by the letters A, G, and AA while the barren outcrops bear the letters B to F and H to Z.
Date:
January 29, 1952
Creator:
Cutter, R. C.
Object Type:
Report
System:
The UNT Digital Library
Investigational Drilling, Hoskinnini Mesa
From to the files: To date, all the mineralization seen in the Monument Valley area in the Shinarump formation has been in scour channels. The mineralized rock occurs at or near the bottom of the channel. On Hoskinnini Mesa, all the channels examined to date contain some mineralized material. Channels observed may in some cases contain copper without apparent uranium mineralization; others definitely exhibit copper-uranium mineralization.
Date:
May 15, 1952
Creator:
Chester, John W. & Pitman, R. K.
Object Type:
Report
System:
The UNT Digital Library
Geology of Horse Mesa, Arizona - New Mexico, with Recommendations for Wagon Drilling
Abstract: Horse Mesa is in the Navajo Indian Reservation directly on the Arizona-New Mexico state line. Uranium-vanadium deposits in the Salt Wash sandstone which caps the Mesa are fairly widespread and small tonngges have been shipped from two mines. The deposits lie 60 to 75 feet above the base of the Salt Wash formation and possibly trend northwest parallel to ore trends on King Tutt Mesa, a mile northeast. Carnotite and vanoxite are the principal ore minerals. About 6,000 feet of wagon drilling is recommended to test two favorable areas. Continued exploration should be governed by results of this first stage drilling.
Date:
September 10, 1952
Creator:
King, John W.
Object Type:
Report
System:
The UNT Digital Library
Beneficiation of Monument Number 2 Ore Apache County, Arizona
From introduction: The Monument No. 2 mine is in the Navajo Indian Reservation, Apache County, Arizona, about 20 miles southwest from the San Juan River at Mexican Hat, Utah, and 26 miles southwest from Mexican Water, Arizona. The property has been operated, since its discovery, by Vanadium Corporation of America, which holds a 10-year mining lease, granted through the Interior Department, to 43 acres of ground. History of the discovery of the deposit is vague, but reportedly it was first seen around 1942 by a Navajo who mentioned the occurrence to Harry Goulding, Indian trader, who in turn advised D. W. Viles of Vanadium Corporation of America. Minor portions of the deposit are held by Cato Sells and Harvey Black, Navajos, under mining permits issued by the Navajo Tribal Council. The Sells acreage is being operated by Climax Uranium Corporation.
Date:
February 27, 1952
Creator:
Sheridan, M. J.
Object Type:
Report
System:
The UNT Digital Library
Results of Preliminary Drilling, Red Rock, Arizona
Abstract: Structure drilling under Contract No. AT(05-l)-120 was begun May 13, 1951, and was suspended June 30, 1951, at Red Rock, Arizona with the completion of 12 holes and 2,390.5 feet of drilling. No mineralization was disclosed in the widely spaced holes. The structure and rock composition was found favorable for a potential drilling area.
Date:
October 16, 1952
Creator:
Anderson, Andrew H.; Foster, John R. & Hurley, Daniel B.
Object Type:
Report
System:
The UNT Digital Library
Reconnaissance of Red Rock Valley, Apache County, Arizona
Abstract: Reconnaissance of Red Rock Valley was begun on December 10, 1953, and completed on February 11, 1954. The mines in the region were investigated and all exposures of Salt Wash were walked. Paleostream directions and alterations of the sandstones were observed and recorded on a base map. No important new mineralization was discovered-and the area is considered to be of no commercial significance if judged by the outcrops alone. However, a vast amount of Salt Wash lies at slight depth directly to the east of the investigated area.
Date:
July 13, 1954
Creator:
Hanshaw, Bruce B.
Object Type:
Report
System:
The UNT Digital Library
Reconnaissance for Uranium in the Southern Carrizo Mountains, Apache County, Arizona
Purpose: A reconnaissance was conducted during parts of August and September, 1956, of an area about two miles square in the southern Carrizo Mountains where the Permian Cutler formation, including its DeChelly member, and the Triassic Shinarump member of the Chinle formation, are exposed. The purpose was to appraise the uranium potential of the area and to determine the cause of bleaching in the DeChelly. Extensive uranium mineralization in the Salt Wash member of the Morrison formation around the Carrizo Mountaind suggested that the Shinarump, a good producer in other areas on the Colorado Plateau, might be mineralized here as well. Bleaching, as shown in the DeChelly; has proven such a useful guide to uranium at other localities as to merit investigation here.
Date:
February 20, 1957
Creator:
Labrecque, Ronald A.
Object Type:
Report
System:
The UNT Digital Library
Ore Occurrence Study, Mesa 4-1/2 Mines, Lukachukai Mountains, Apache County, Arizona
Abstract: Mine mapping of the tyuyamunite-type deposits In the Salt Wash member of the Jurassic Morrison formation of the Lukachukai Mountains, Apache County, Arizona revealed recognizable spatial relationships between ore mineralization and: fractured areas, sedimentary features, and interstitial carbonate.
Date:
March 14, 1957
Creator:
Beam, Thomas E.
Object Type:
Report
System:
The UNT Digital Library
Drilling in the Flatirons Locality, Monument Valley, Arizona
From introduction: A subsurface exploration program was undertaken to investigate the concentration of uranium and vanadium in or near the base of the Shinarump member of the Chinle formation in the Flatirons locality, and to develop criteria whereby adjacent unexplored areas could be evaluated as to potential production capacity from study of geological and mineralogical features at the host rook outcrop. An earlier study of the area by C. G. Evensen of the U. S. Atomic Energy Commission had shown that geological conditions favorable to the accumulation of commercial uranium deposits were present in the Flatirons area.
Date:
August 23, 1957
Creator:
Gray, Irving B.
Object Type:
Report
System:
The UNT Digital Library
Drilling in the Monument Valley Area, San Juan County, Utah and Navajo County, Arizona
Abstract: Napier Drilling Company of Dallas, Texas drilled 53,998.0 feet for exploration purposes, under Contract No. AT(05-1)-256. This footage was drilled in 508 holes during the period from June 21, 1954 through May 13, 1955.
Date:
June 7, 1957
Creator:
Presley, C. K.
Object Type:
Report
System:
The UNT Digital Library
Historical Review of Uranium-Vanadium Production in the Eastern Carrizo Mountains, San Juan County, New Mexico, and Apache County, Arizona
Introduction: This report is a brief review of the uranium and/or vanadium mining in the eastern Carrizo Mountains, San Juan County, New Mexico and Apache County, Arizona. It was prepared at the request of the Navajo Tribe, the New Mexico Energy and Minerals Department, and the Arizona Bureau of Geology and Mineral Technology. As this report deals only with historical production data, the reader is referred to reports by Blagbrough and Brown (1955), Masters and others (1955), and Stokes (1951, 1954) for descriptions of the geology and ore deposits. Figure 1 shows the locations of the mines and the production is summarized in Table 1 and Figure 2. A separate report (Chenoweth and Learned, 1980) covers the production history of the northern and western Carrizo Mountains.
Date:
March 1980
Creator:
Chenoweth, William L.
Object Type:
Report
System:
The UNT Digital Library
Preliminary Reconnaissance Work in the Rattlesnake Area, Apache County, Arizona
From introduction: The Bluff-Salt Wash contact was mapped on aerial photographs. Mines and prospects were also plotted on the photos. The mines and prospects were studied and a brief description of the mineralization and its occurrence was written. These field notes, which will be given to Hatfield and party, contain data on the presence of carbon and fossil logs, lithology of the gangue rock, sedimentary structures, etc. Regional structure and evidence for igneous activity were also noted.
Date:
September 5, 1952
Creator:
Hill, John F. & Blagbrough, John W.
Object Type:
Report
System:
The UNT Digital Library
Reconnaissance Geology of the Southern Muggins Mountains Yuma County, Arizona
Summary and conclusion: More than 4000 feet of Lower Miocene lake sediments were deposited upon a gneissic basement rock, at least locally. The sediments have been gently folded into broad anticlines and synclines and have been cut by high-angle faults with displacements on the order of 100 feet. Both basaltic (?) and acid andesitic lavas have intruded the sediments. A Pleistocene (?) conglomerate unconformably overlies all older exposed rocks. The lake sediments were considered to overlie the adjacent thick series of andesite flows (l). This was not established by a cursory examination. The sediments appeared to be in fault contact with the lavas although the relationship was always obscured by the younger conglomerate or alluvial cover. Since a dike of this acid andesitic composition was observed cutting the sediments, there is a possibility that the lake sediments are older than or contemporaneous with the thick extrusive andesite series.
Date:
January 1958
Creator:
Reyner, Millard L. & Ashwill, Walter R.
Object Type:
Report
System:
The UNT Digital Library