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- Examination of the Uranus Claim, near Summit Diggings, Kern County, California
- Discussing and investigation with the purpose of examining a uranium prospect which was reported to be in active development
- [Illustrations: Figures 1-10]
- Maps and charts illustrating aspects of a photogeologic reconnaissance study of the spatial relationship of uranium deposits to structure and stratigraphy in Duval County, Texas.
- Uranium Exploration on Palangana Salt Dome, Duval County Texas
- Reporting investigations into the lithologic and structural ore controls as revealed by this exploration program.
- Airborne Reconnaissance in the Valley of Fire-Muddy Mountains Region, Nevada
- Abstract: The Valley of Fire-Muddy Mountains region, located 20 to 30 miles northeast of Las Vegas, Nevada, was given approximately 25-percent airborne radioactive coverage during the fall of 1954. Rocks in the area range from Cambrian to Miocene in age. Uranium was known to occur at two sedimentary horizons at the time the airborne program began. One new uranium-bearing sedimentary horizon was discovered by the airborne reconnaissance. Of 15 anomolies detected, only 11 were posted as the remainder were claimed at the time of the survey.
- Final Report on Interpretation and Evaluation of the Uranium Occurrences Near Goodsprings, Nevada
- From introduction: This report is based on the field and laboratory studies of the uranium mineralization in the vicinity of Goodsprings, Clark Co., Nevada. The location of the region is shown in figure 1.
- Uranium Reconnaissance and Drilling in the Sanostee Area, San Juan County, New Mexico and Apache County, Arizona
- Report documenting work to map in detail the Roy Mesa and Enos Johnson claim areas so that ore guides could be determined and the areas could be evaluated for drilling and to complete a general reconnasaince of the favorable Mesozoic.
- Uranium occurrences in the Kelso Valley area, Kern County, California
- Discussing the occurrence of uranium in the Kelso Valley area in Kern County, California
- Reconnaissance for Uranium in the Tocopilla area, Province of Antofagasta, Chile
- Abstract: In September-October 1958 a six-day reconnaissance in the Tocopilla area, Antofagasta Province, Chile, was made by members of the U.S. Atomic Energy Commission and the Instituto de Investigaciones Geológicas de Chile for the purpose of evaluating reported uranium occurrences.
- Geologic Reconnaissance of the Northwestern White River Plateau, Rio Blanco and Garfield Counties, Colorado
- Discussing a geologic reconnaissance of the northwestern White River Plateau, in Rio Blanco and Garfield counties, Colorado.
- Plate I Geologic Map of the Crooks Map District, Freemont District, Wyoming
- Geologic map of the Crooks Map District, Freemont District, Wyoming showing core drill holes prepared for a report by U.S. Atomic Energy Commission, Grand Junction Office.
- Stratigraphic Drilling in the Crooks Gap Area
- Discussing a drilling program planned to investigate the lithology and internal stratigraphy of the Wasatch formation and to determine the depth to the underlying surface of unconformity of the basal contact of the Wasatch formation.
- A Reconnaissance for Uranium in the Uppermost Cretaceous and Early Tertiary Rocks of the Eastern San Juan Basin, New Mexico
- Discussing a reconnaissance, in the uppermost Cretaceous and early tertiary rocks of the eastern San Juan Basin, New Mexico, for uranium
- Mineralogical and geological investigations of the uranium deposits of the Wind River district, Wyoming
- Discussing the study of uranium deposits in the Wind River District in Wyoming, undertaken to determine the relationships between the mineralogy and uranium equilibrium state and the field geology of the deposits.
- Geologic and Radiometric Reconnaissance Along the San Juan and Colorado Rivers Between Mexican Hat, Utah, and Lees Ferry Arizona
- Abstract: Ten days were spent during June 1955, examining the sedimentary rocks along the San Juan and Colorado Rivers between Mexican Hat, Utah, and Lee's Ferry, Arizona. The most favorable area for uranium deposits occurs in the Shinarump member of the Chinle formation between Clay Hills Crossing and Spencer Camp along the San Juan River. Mineralization is spotty and deposits are small and almost all below ore-grade. Only one small mine, the Whirlwind, is currently producing ore. Gray-green alteration of the underlying Moenkopi is moderately developed in the vicinity of the Whirlwind mine; elsewhere alteration is weakly developed.
- Environment of Uranium Deposition in the Bull Canyon Area, Southwestern Colorado
- Summarizing the data on the uranium-vanadium deposits of the Bull Canyon area in Montrose and San Miguel Counties, Colorado.
- [Environment of Uranium Deposition in the Bull Canyon Area, Southwestern Colorado: Figures]
- The following document contains the 17 figures in relation to the report, Environment of Uranium Deposition in the Bull Canyon Area, Southwestern Colorado.
- Fracture Pattern Study, Bull Canyon, Montrose and San Miguel Counties, Colorado
- A study made of the joint patterns in four different formations exposed in Bull Canyon, and of favorable and unfavorable ground in the upper ore-bearing sandstone unit of the Salt Was member of the Jurassic Morrison formation.
- Possibilities for Uranium in Mexico
- Discussing the potential for Mexico to be used as a uranium source.
- Drilling at Seven Mile Canyon, Grand County, Utah
- Discussing uranium deposits drilled at the Seven Mile Canyon in grand county, Utah.
- Exploration drilling in the Haystack Butte area, McKinley County, New Mexico
- The US Atomic Energy Commission conducted a drilling program in McKinley County, New Mexico, from August 19, 1953, through April 19, 1954, to explore the Jurassic Todilto limestone for uranium occurrences on the eastern, northeastern, northern and northwestern sides of Haystack Butte
- Preliminary Drilling in the Powder River Basin, Converse, Campbell, and Johnson Counties, Wyoming
- Abstract: On July 16, 1953, a diamond core-drilling program was begun in the Pumpkin Buttes area to secure geologic information.
- Notes on the Relationship of Uranium Mineralization and Rhyolite in the Marysvale Area, Utah
- From abstract: A study, consisting of field and laboratory work, was undertaken in an endeavor to establish possible structural mineralization controls associated with the copper-uranium occurrences in the Willaha area, Coconino County, Arizona. Uranium mineralization, apparent at present, is localized along small fissures and vugs and in certain beds and lenses of the middle member of the Kaibab formation(Permian). It is associated with copper and iron oxide staining. Though no definite ore controls were disclosed by this study, at least a limited program of shallow drilling is warranted on the property. This sub-surface exploration should determine possible extensions of known mineralized areas, explore surface radiometric anomalies, and provide data for the determination of possible guides to ore. Deeper exploration may encounter mineralization in other horizons of the Kaibab limestone.
- Uranium Investigations and Recommendations for Diamond Drilling Near Aladdin, Crook County, Wyoming
- Summarizing the findings of investigations of radiometrically anomalous areas and discussing recommendations for a diamond drilling program.
- 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.
- Petrographical Investigations of the Salt Wash Sediments, Annual Technical Report: 1954
- Abstract: This report consists of four parts, the first three being descriptions of investigations compiled in the period October 1st, 1953 to April 1st, 1954; the fourth part is a summary of progress of the research based on our entire investigations completed prior to April 1st, 1954. The first part comprises a set of preliminary experiments investigating the mineral composition of the sandstones in thin sections, in an attempt to differentiate barren from ore-bearing sandstones. It appears that there are more rock-fragments and particularly more volcanic rock fragments in the ore zone (zone 4, Well C, Bull Canyon). In addition, silica cement appears to be associated with ore and carbonate cement with barren sediments. The second part details the investigation of the mudstones of the Bull Canyon Wells . A mixed layer lattice "illite" and a kaolin mineral are the most prominent in "normal" mudstones. Dye tests suggest there are differences between the clay minerals in the sandstone matrix of the ore zone and barren zone. In addition, the mudstone zones appear to differ in the response to the dye tests. The third part of the report details the bulk density determinations for cores from well B. The results confirm our conclusions based on bulk density investigations of cores from well C. Finally in the summary of progress of the research, Part IV of the report, guides to ore are suggested and the differences between ore bearing sediments and barren sediments are summarized. The hypothesis of genesis which best fits the observations is also described.
- Preliminary Report on Uranium Deposits in the Wind River Basin, Wyoming
- Abstract: Uranium was discovered in the Gas Hills of the Wind River Basin by Mr. Nail E. McNeice of Riverton, Wyoming while he was prospecting with a Geiger counter in September 1953. Field parties of the Atomic Energy Commission started work in the area in October 1953.
- Uranium deposits in the Pryor-Big Horn Mountains, Carbon County, Montana, and Big Horn County, Wyoming
- Discussing the occurrence of uranium deposits in the Pryor-Bighorn Mountains.
- Preliminary Report on Uranium-Bearing Deposits in Mohave County, Arizona
- Abstract: Preliminary studies of the Wallapai Mining District and selected properties in the Maynard and Greenwood Mining Districts, Mohave County, Arizona, from January 8 to March 8, 1953, were made to determine the extent of uranium mineralization. All of the uranium properties examined are of the vein type and are believed to be of mesothermal origin. Brecciation and porosity of the veins appear to be controlling factors in the concentration of uranium minerals from the ore-bearing solutions. Although the uranium minerals present in these districts have not been specifically identified, they appear to be mostly primary with very minor occurrences of secondary products. One exception is the State mine in the Greenwood District, where secondary minerals predominate.
- Geologic Outline of Peru
- Descriptions of the geology of Peru
- Geology and Uranium Deposits of the Carrizo Mountains Area Apache County, Arizona and San Juan County, New Mexico
- Although uranium gas first discovered in the Carrizo Mountains area in 1918, the ores were not developed until 1942. They have, however, been mined continuously since that time. Formations in the area range from the Pernian Cutler through the Cretaceous Mancos shale, and all are intruded by a dioritic laccolith and its related dikes. The older structures, which include the Defiance Uplift, the San Juan Basin, and the Four Corners Platform are somewhat disrupted by the effects of the intrusion. A number of mines are described and mineralogical and geochemical studies made are outlined. The primary uranium mineral is unknown, but the chief uranium ore-mineral is the secondary mineral, tyuyamunite. It is concluded that there is at least minor structural control of the ore bodies along sedimentary trends and joints, and that all ore bodies of 500 tons or more are on the Defiance monocline or its extensions. The uranium may have been syngenetic in the sediments, and redistributed by solutions or, more likely, that it rose vertically in hydrothermal solutions from the local intrusive bodies.
- Geology and Uranium Deposits of the Carrizo Mountains Area Apache County, Arizona and San Juan County, New Mexico
- From Purpose, Scope, and Methods: The objective of this study was an evaluation of resources of the Carrizo Mountains area. Four factors: distribution of ore bodies, relation of uranium to the host rock, relation of ore to structure, and circumstances that might precipitate uranium were studied in search of data bearing on manner of distribution of ore, the time and causes of deposition, and the probable source of the uranium-bearing solutions.
- Preliminary Report on Uranium Occurrence, Silver King Claims, Tooele County, Utah
- Abstract: Uranium was discovered on the Silver King claims in the fall of 1953. The claims are on the west flank of the Sheeprock Mountains in the eastern part of the Erickson mining district, Tooele County, Utah. Uraninite occurs in north- to northwest-trending copper-nickel-silver bearing fissure veins near the margin of a granitic stock of probable late Tertiary age. Sedimentary rocks in contact with the granite are chiefly dolomite and quartzite of Middle and Upper Ordovician age. Diamond drilling on this property did not disclose significant amounts of uranium; however, encouraging showings have been found by underground exploration by the owner.
- Investigation of Subsurface Isorad Methods, Temple Mountain, San Rafael District, Utah
- From abstract: The subsurface isorad method is an attempt to locate areas favorable for uranium ores by the use of contour maps which show localities having greater radioactivity. The construction of isorad maps entails the measurement of the area under the curve of a gamma-ray logo The figures obtained indicate relative amounts of gamma radiation and are used to locate the isorad contours. This work was started at Temple Mountain in the San Rafael Swell area during the spring of 1952. The purpose of this investigation is to determine the most effective and economic hole spacing for subsurface isorad work.
- Drilling at Dripping Springs, Emery County, Utah
- Discussing the diamond drilling projects of the Dripping Springs area of the San Rafael swell.
- Airborne Reconaissance Survey of Northwestern Nevada
- This document reports a preliminary airborne reconnaissance survey that was conducted in the mountain ranges of the northwest portion of Nevada.
- Supplementary Report on Areas of Anomalous Radioactivity North of Hulett, Wyoming
- A report of Areas of Anomalous radioactivity located North of Hulett, Wyoming.
- Preliminary Reconnaissance for Uranium, Colombia, South America
- Summarizing the Observations, interpretations, and recommendations of the Authors who were assigned for a two month period to cooperate with the Colombian government in an evaluation of their uranium exploration program.
- Airborne Radiometric Survey of the East Flank of the Big Horn Mountains, Wyoming and Montana
- Abstract: An airborne radiometric survey of parts of the east flank of the Big Horn Mountains was begun on June 23, and completed on August 27, 1952. An area of approximately 250 square miles was covered, and only two anomalies were found in the entire area. Flight lines were arranged in accordance with the geology of the area, particular attention being given to formations the stratigraphic equivalents of which are known to be uranium bearing in other areas. Two additional zones of radioactivity were found by ground investigation, but assays from both the ground and the airborne discoveries showed no economic uranium deposits.
- [Plate 1. Political Divisions of Afganistan]
- Map showing political divisions in Afghanistan produced for the U.S. Atomic Energy Commission, Division of Production and Materials Management, uranium explorations.
- Plate-I Belgian Congo Geography
- Historic map of Belgian Congo and surrounding areas showing geographical features. Scale 1:5,000,000
- Possibilities for Additional Uranium in Belgian Congo
- Discussing the potential for Belgian Congo to be used as a uranium source.
- Possibilities for Uranium in Afghanistan
- Discussing the potential for Afghanistan to be used as a uranium source.
- Possibilities for uranium in Antarctica
- Discussing the evidence of the potential for uranium in Antarctica.
- Possibilities for Uranium in Burma
- Discussing the potential for Burma to be used as a uranium source.
- Possibilities for Uranium in Indonesia
- Discussing the potential for to Indonesia be used as a uranium source.
- Possibilities for Uranium in Norway
- Discussing the potential for Norway to be used as a uranium source.
- Possibilities for uranium in Saudi Arabia
- Discussing the potential for Saudi Arabia to be used as a uranium source.
- Possibilities for Uranium in the Republic of India
- Discussing evidence of the potential of uranium in The Republic of India
- Possibilities for Uranium in the West Indies
- Discussing the potential for the West Indes to be used as a uranium source.
- Possibilities for Uranium in Yugoslavia
- Report discussing the potential for Yugoslavia to be used as a uranium source.