Resource Type
Serial/Series Title
Country
States
Decade
Month
1,253 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
1,253
next
Characteristics of Radioactive Carbonaceous and Bituminous Shales
Report discussing the characteristics and locations of radioactive carbonaceous and bituminous shales in the United States.
Date:
January 1950
Creator:
Geological Survey (U.S.)
Object Type:
Report
System:
The UNT Digital Library
Erosion Studies at Parícutin, State of Michoacán, Mexico
From abstract: Paricutin is 320 kilometers west of Mexico City and is reached by air, rail, or paved highway to Uruapan, Michoacan, and thence by 37 kilometers of paved and dirt road to lava-destroyed San Juan Parangaricutiro, 5 kilometers north of the cone.
Date:
1950
Creator:
Segerstrom, Kenneth
Object Type:
Report
System:
The UNT Digital Library
A Glossary of Uranium- and Thorium-Bearing Minerals
Glossary of minerals containing uranium and thorium. "In the index there are 325 entries which represent 81 species containing uranium and thorium as major constituents, 39 species containing small amounts of uranium and thorium, 29 species which should be tested for uranium and thorium, and 13 species which have been reported to contain impurities or intergrowths of uranium, thorium, or rare-earth minerals."
Date:
January 1950
Creator:
Frondel, Judith Weiss & Fleischer, Michael
Object Type:
Report
System:
The UNT Digital Library
Magnesite Deposits of Central Ceará, Brazil
From introduction: The purpose of this study was to investigate the quantity and quality of [Central Ceara, Brazil] magnesite, and the writer concludes that this group of deposits constitutes one of the major reserves of high-grade magnesite in the Western Hemisphere. The ore could be used in the production of any commercial grade of magnesia with little or no beneficiation. Soil and alluvial overburden is thin between widespread outcrops, so all the deposits could be mined from open pits.
Date:
1950
Creator:
Bodenlos, Alfred J.
Object Type:
Report
System:
The UNT Digital Library
Preliminary Notes on the 1951-52 Investigations of the Thomas Range Fluorite District, Juab County, Utah
From page 3: Uraniferous fluorspar pipes cut Paleozoic dolomite in the western part of the Thomas Range, along a ridge known locally as "Spor's Mountain". The fluorspar district (fig. 1) is approximately 50 miles northwest of Delta, Utah, and is in Tps. 12, 13 N., R. 12 W., Salt Lake principal meridian. From July to September 1952 approximately 10 man-months were spent in the district. During this time, field work started in 1951 was completed. Mapping and sampling the fluorspar deposits was done in 1950 (reported in TEI-136). The entire uraniferous fluorspar district has now been mapped at a scale of 1 inch to 1, 000 feet, the complete stratigraphic section of the district has been measured in detail, and additional mine mapping and sampling has been done.
Date:
1950
Creator:
Osterwald, Frank W.
Object Type:
Report
System:
The UNT Digital Library
Reconnaissance of Some Geologic Formations in Southeastern Idaho, Western Wyoming, and Northern Utah
Abstract: A radiometric reconnaissance, using a portable beta-gamma survey meter, of some geologic formations ranging in age from Cambrian to Cretaceous, and springs in southeastern Idaho, western Wyoming, and northern Utah, has shown that none of them are sufficiently radioactive to warrant further examination of them in the area.
Date:
January 1950
Creator:
Anderson, Frank J.
Object Type:
Report
System:
The UNT Digital Library
Relation of Uranium and Phosphate in the Phosphoria Formation
Report discussing investigation of the relation of uranium and phosphate in the Phosphoria formation and its close stratigraphic equivalents.
Date:
January 1950
Creator:
McKelvey, V. K.
Object Type:
Report
System:
The UNT Digital Library
Tin Deposits of Durango, Mexico
From abstract: This report summarizes the economic possibilities of the tin deposits of the Estado de Durango, Mexico. It describes in detail many deposits in the leading districts, which were examined in 1944, and briefly reviews some reports on undeveloped occurrences in the southern and western parts of the State. The general conclusion is that tin will continue to be produced by hand methods for many years, but probably at a decreasing rate, because the placer grounds which have always produced the greater part of the tin are faced with gradual exhaustion.
Date:
1950
Creator:
Smith, Ward C.
Object Type:
Report
System:
The UNT Digital Library
Volcanic Activity in the Aleutian Arc
Including a list of all known volcanoes and a summary of activity betwen 1760 and 1948.
Date:
1950
Creator:
Coats, Robert R.
Object Type:
Report
System:
The UNT Digital Library
Volcanoes of the Parícutin Region, Mexico
The following report describes the different volcanoes of the Paricutin Region.
Date:
1950
Creator:
Williams, Howel
Object Type:
Report
System:
The UNT Digital Library
Experimental Gamma-Ray Logging of Drill Holes in the Calamity Area
Report discussing a geological experiment in which 48 drill holes in the Calamity area were logged with the objective to check the results obtained in a previously done experiment by the Schlumberger Well Surveying Corporation.
Date:
February 1950
Creator:
Rogers, Allen S.
Object Type:
Report
System:
The UNT Digital Library
Progress of Geologic Studies, Colorado Plateau Project
Report discussing progress made on geologic studies under the Colorado Plateau Project. The geologic studies that were in progress during the time of this report consist of the following: "(1) General geologic mapping in southwestern Colorado and southeastern Utah. (2) Regional stratigraphic and sedimentary studies in Colorado, New Mexico, Utah, and Arizona. (3) Studies of past and present ground-water conditions in southwestern Colorado and southeastern Utah."
Date:
February 1950
Creator:
Cater, F. W.; Craig, L. C. & Phoenix, D. A.
Object Type:
Report
System:
The UNT Digital Library
Radioactivity and Mineralogy of Concentrates From the Placers of Julian, Moore, and Candle Creeks and the Cripple Creek Mountains, Lower Yukon-Kuskokwim Highlands Region, Alaska
Abstract: Radiometric and mineralogic study of 10 concentrate samples from the placers of Julian, Moore, and Candle Creeks, and the Cripple Creek Mountains, Lower Yukon-Kuskokwim Highlands region, Alaska, failed to reveal any significant amounts of uranium. Only the sample from Julian Creek shows and appreciable amount of radioactivity (0.03 percent equivalent uranium), but this is attributed entirely to thorium in monazite.
Date:
February 1950
Creator:
White, M. G. & Killeen, P. L.
Object Type:
Report
System:
The UNT Digital Library
Reconnaissance for Trace Elements in North Dakota and Eastern Montana
From abstract: A reconnaissance for sources of radioactive material in North Dakota and eastern Montana was made in 1948. This reconnaissance was followed by a more detailed survey of parts of Golden Valley and Slope counties, southwestern North Dakota, in June 1949. The radioactivity of representative sections of all formations known to be exposed in the area and of three manganiferous spring deposits was determined with portable Geiger-Mueller counters. At 86 localities 82 samples were taken of these formations and also of 10 ground and surface waters.
Date:
February 1950
Creator:
Wyant, Donald G. & Beroni, Ernest P.
Object Type:
Report
System:
The UNT Digital Library
Shorter Contributions to Alaskan Trace Elements Studies
A report about seven rock samples collected by a U.S. Geological Survey geologist in the Russian Mountains in 1944 which have proved to be somewhat radioactive.
Date:
February 1950
Creator:
Moxham, R. M.
Object Type:
Report
System:
The UNT Digital Library
Tin, Copper, and Uranium at Majuba Hill, Nevada
The following report summarizes the results of a brief geological examination made by the Geological Survey of the small uranium deposit in the Majuba Hill mine, Pershing County, Nevada.
Date:
February 1950
Creator:
Thurston, R. H. & Chace, F. M.
Object Type:
Report
System:
The UNT Digital Library
Tin, Copper, and Uranium at Majuba Hill, Nevada
"This report is a summary of the results of a brief geological examination made by the Geological Survey of the small uranium deposit in the Majuba Hill mine, Pershing County, Nevada."
Date:
February 1950
Creator:
Thurston, Ralph H. & Chace, Fred M.
Object Type:
Report
System:
The UNT Digital Library
Trace Elements Reconnaissance in the Lower Coleen River Valley, Upper Yukon Division, Alaska
Abstract: "The highest radioactivity value obtained in a traverse of shales in the Middle Paleozoic section of the lower Coleen River is 0.003 percent equivalent uranium. Traverses on pre-Cambrian schists at Rabbit Mountain were made with negative results."
Date:
February 1950
Creator:
White, M. G.
Object Type:
Report
System:
The UNT Digital Library
The Uravan Mineral Belt
"This report briefly describes the [Urvanian Mineral Belt] and outlines the geologic evidence supporting its concept. General plans for continuous exploration of this belt, and preliminary prediction of the total amount of carnotite-bearing rocks that might be in one unexplored area, are also presented"
Date:
February 1950
Creator:
Fischer, R. P.
Object Type:
Report
System:
The UNT Digital Library
Beryllium in Colorado
Report discussing properties and uses of beryllium and beryl, an ore of beryllium produced as a by-product of mining in Colorado.
Date:
March 1950
Creator:
Page, Lincoln R.
Object Type:
Report
System:
The UNT Digital Library
Black Shale Investigations, Block 3, Tennessee
Report discussing a geological examination of the Chattanooga shale in the general vicinity of the Sequatchie Valley, Tennessee (Block 3) during the period from February 1948 to March 1948. This examination was part of a larger study of the distribution of uranium in the Chattanooga Shale.
Date:
March 1950
Creator:
Robeck, R. C. & Brown, Andrew
Object Type:
Report
System:
The UNT Digital Library
Carnotite Resources in the Charles T. Area and Vicinity, San Miguel County, Colorado
Report discussing an exploratory drilling program in the Charles T. area and vicinity during the period from November 1947 and September 1949. "The purpose of the exploration was to discover new carnotite deposits to support milling operations on the Colorado Plateau, and to appraise the uranium and vanadium resources of the area explored."
Date:
March 1950
Creator:
Bush, Alfred L.
Object Type:
Report
System:
The UNT Digital Library
A Preliminary Report on Methods of Determining the Age of Colorado Plateau Carnotite
From Abstract: "Four methods of dating Colorado Plateau carnotite have been examined and evaluated: mineralogic methods, radioactive-equilibrium methods, lead-uranium-ratio methods, and lead-isotope methods. The data on 12 high-grade samples, from a suite of 50 representative carnotite ores, are presented."
Date:
April 1950
Creator:
Stieff, L. R.; Girhard, M. N. & Stern, T. W.
Object Type:
Report
System:
The UNT Digital Library
Radiometric and Mineralogic Studies of the Granitic Complex in the Cape Nome Area Seward Peninsula, Alaska
Abstract: An early report on the Cape Nome area, Seward Peninsula, Alaska, stated that granitic rocks there contain allanite as a common accessory mineral. Results of studies in 1947 indicate that very little allanite is present, and that the slight amount of radioactiity of the granitic complex is attributable to the accessory minerals zircon and sphene.
Date:
May 1950
Creator:
West, W. S. & Matzko, J. J.
Object Type:
Report
System:
The UNT Digital Library