Technical Report Archive & Image Library (TRAIL) - 68 Matching Results
Search Results
- Age Determination of Zircon Crystals From Ceylon
- From Abstract: "Age determinations have been made on 21 crystals of gem quality zircon from Ceylon which are believed to have been derived from pegmatites of pre-Cambrian age."
- Bastnaesite, an Accessory Mineral in the Redstone Granite, Westerly, Rhode Island
- Report discussing the occurrence and analysis of bastnaesite in the Redstone granite of the Sterling batholith near Westerly, Rhode Island.
- Botanical Prospecting for Uranium on La Ventana Mesa, Sandoval County, New Mexico
- A report about uranium bearing coal in the Allison-Gibson members of the Cretaceous Mesaverde formation which crops out in erosional remnants of the mesa.
- Carnotite Resources of San Miguel Bench, Montrose County, Colorado
- Abstract: San Miguel bench includes about 4 square miles in the southern part of T. 48 N., R. 17 W., New Mexico principal meridian, Montrose County, Colorado. Production of carnotite ore from the area has been about 15, 000 short tons having an estimated average graderof 0. 31 percent U3O8,and 1. 6 percent V2 05 Nearly all of the carnotite deposits occur in a single-continuous sandstone bed near the top of the Salt Wash member of the Jurassic Morrison formation. These deposits consist chiefly of sandstone impregnated with uranium- and vanadium-bearing minerals. They are irregular tabular-shaped masses ranging in size from a few short tons to 30, 000 short tons or more of minable carnotite ore. During the period November 27, 1951, to April 17, 1953, the U. S. Geological Survey drilled 309 holes totaling 92, 194 feet on the San Miguel bench. Reserves total about 43, 000 short tons of material 1 foot or more thick and contain 0,.10 percent or more U30 or 1. 0 percent or more V205. Of these reserves 3, 300 short tons occur in private land. These reserves are in ten deposits found by Geological Survey drilling. Potential reserves (reserves based on geologic evidence only) are predicted to total about 15, 000 short tons, averaging 0.30 percent U308 and 1.6 percent V2 05 No additional exploration drilling in the San Miguel bench is planned by the Geological Survey. Some drilling by private enterprise is recommended.
- Carnotite Resources of San Miguel Bench, Montrose County, Colorado
- Report discussing the San Miguel bench and the production of carnotite from deposits consisting of sandstone with uranium- and vanadium-bearing minerals.
- Characteristics of Triassic and Jurassic Uranium-Bearing Host Rocks of the Colorado Plateau
- Report discussing a petrographic study of the uranium ore-producing formations of the Colorado Plateau by means of thin section study, grain-size analyses and the field examination of sedimentary procedures.
- Chattanooga Shale Investigations Along the Sequatchie Anticline of Tennessee and Alabama
- From abstract: "In 1953 the Chattanooga shale in the Sequatchie anticline was tested for its uranium content by seven diamond drill cores. Concurrent with the drilling, geologic field work was done to determine the distribution, thickness, and structural setting of the shale." The report contains information regarding location and drainage, geology, the drilling program, subdivisions of the Sequatchie anticline, and unpublished reports.
- Chattanooga shale investigations along the Sequatchie anticline of Tennessee and Alabama
- "The results of an investigation of the Chattanooga shale along the Sequatchie anticline of Tennessee and Alabama are summarized in this report. The project was of an exploratory nature designed to 1) obtain fresh core samples from areas where analyses of outcrop samples showed uranium contents as high or higher than those of the Youngs Bend area in DeKalb County, Tenn.; 2) learn more about the distribution and thickness of the shale in those areas and, if necessary, do some geologic mapping; 3) observe general topographic, drainage, and geologic conditions that would affect the mining of shale."
- 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
- A report about strata of conglomeratic sandstone which is localized st the base of the Brushy Basin shale member of the Morrison formation of Jurassic Age. These strata are discrete lithologic units which contain sedimentary structures oriented in a prevailing easterly direction.
- The Determination of Thorium in High Grade and Low Grade Ores
- Report discussing a procedure for determinion of thorium in monazite ores and other ores with diverse composition. This procedure can be used for high and low grade ores.
- The Determination of Uranium in Ores: Separation by Ethyl Acetate Extraction and Spectrophotometric Determination by the Thiocyanate Method in Acetone-Water Medium
- Abstract: "The thiocyanate method is applied to the determination of uranium in ores after separation by ethyl acetate extraction." Sections are included for prelimnary experiments, and the procedure for the analysis of uranium ores and minerals.
- The Effect of Ashing Temperatures on the Volatility of Germanium in Lignite Samples
- Abstract: A study has been conducted to provide data on the loss of germanium from ashed lignite samples. The lignite samples, of known germanium content, were ashed at various temperatures as high as 1000 °C with varying rates of heating and varying amounts of surface area of the lignites. The results indicate that no germanium was volatilized during the various ignitions.
- The Elk Ridge-White Canyon Channel System, San Juan County, Utah: Its Effect on Uranium Distribution
- The following report covers the study of the area described in this report that is part of the White Canyon mining district, San Juan County, Utah. Upon this investigation, uranium deposits were discovered and analyzed.
- A Field Method for Making a Quantitative Estimate of Altered Tuff in Sandstone
- Report discussing a method for using benzidine to identify altered tuff in sandstone. The method is "practical for field or field laboratory studies associated with stratigraphic correlations, mineral deposit investigations, or paleogeographic interpretations."
- Gamma-Radioactivity Investigations Related to Waste Disposal, Jackass Flats, Nevada Test Site
- From introduction: Under the general supervision of the Health Division of the Los Alamos Scientific Laboratory, the U.S. Geological Survey is participating in geologic and hydrologic studies of the tile field constructed in Jackass Flats in the southwestern part of the Nevada Test Site as related to waste disposal, M. D. Shutler rendered valuable assistance in obtaining and evaluating portions of the data in this report. These investigations were done on behalf of the U.S. Atomic Energy Commission and were supported by the Division of Reactor Development and by the Albuquerque Operations Office.
- Geologic and Seismic Investigations of Proposed Nuclear Power Plant Site on Bodega Head, Sonoma County, California
- The following report covers the study of the site adjacent to Campbell Cove on Bodega Head, Sonoma County, California, focusing on questions such as: 1) its position relative to the San Andreas fault zone; 2) the possibility that minor faults, related to the San Andreas fault, might actually pass through the site; and 3) the seismic hazards posed by the nearby San Andreas fault zone.
- Geologic Map of the Buckboard Mesa Quadrangle, Nye County, Nevada
- This is a geological map of the Buckboard Mesa quadrangle in Nye County, Nevada.
- Geologic Map of the Silent Butte Quadrangle, Nye County, Nevada
- This is a geological map of the Silent Butte quadrangle in Nye County, Nevada.
- Geologic Map of the Timber Mountain Quadrangle, Nye County, Nevada
- Map of the Timber Mountain Quadrangle in Nye County, Nevada.
- Geologic section from Carlsbad Caverns National Park through the Project Gnome site, Eddy and Lea Counties, N. Mex
- Discussing peaceful applications of nuclear explosions
- Geology and Mineralogy of the J.J. Mine, Jo Dandy Area, Montrose County, Colorado
- Introduction: Detailed geologic mine mapping and sampling of the J.J. mine in the Jo dandy area, Montrose County, Colo., were undertaken to study a vanadium-uranium ore body in terms of the physical relationships of ore to host rock, the paragenetic sequence of ore minerals, and the sequential development of an oxidized suite of ore minerals from unoxidized ore.
- Geology and Mineralogy of the J. J. Mine, Jo Dandy Area, Montrose County, Colorado
- A report vanadium-uranium ore in the J. J. mine in Montrose County, Colorado.
- Geology and Ore Deposits of the Kern River Uranium Area, Kern County, California
- The following report covers investigations on the geology of the Kern River uranium area in Kern County, California, as well as the small uranium ore deposits erratically distributed along fractures.
- Geology and ore deposits of the Kern River uranium area, Kern County, California
- Discussing the geology and ore deposits of the Kern River Uranium Area, located in Kern County, California
- The Geology of the Florida Land-Pebble Phosphate Deposits
- Report describing the geology of the land-pebble phosphate district on the Gulf Coastal Plain of Florida. This district is mapped out and the formation of land-pebble phosphate deposits is shown.
- Geology of Uranium Deposits in Triassic Rocks of the Colorado Plateau
- From introduction: The primary object of this work was to aid prospectors and mining men in finding and exploiting new deposits of uranium-bearing ores in the Colorado Plateau region, particularly of those in the Shinarump and Moss Black members of the Chinle formation.
- An Improved Glass Sample Holder for Assaying Low Radioactivity Samples
- Report discussing an improved sample holder for measuring the radioactivity of powdered samples. The sample holder "consists of a thin-walled Geiger-Mueller tube, a ground-glass joint, and a four-pin connector."
- Interim Report on Botanical Prospecting for Uranium in the Shinarump Conglomerate at Deer Flat, White Canyon District, San Juan County, Utah
- Report discussing a study in which the plant analysis method of botanical prospecting for concealed uranium deposits was employed in the Deer Flat area, White Canyon district, San Juan County, Utah. The study took place from May to July, 1953.
- Interim report on botanical prospecting for uranium in the Shinarump conglomerate at Deer Flat, White Canyon District, San Juan County, Utah
- An interim report regarding botanical prospecting for uranium in the Shinarum conglomerate at Deer Flat, in the White Canyon District, San Juan County, Utah. This report concerns work done on behalf of the Division of Raw Materials of the U.s. Atomic Energy Commission.
- Interim Report on Geologic Investigations of the U12b Tunnel System, Nevada Test Site, Nye County, Nevada
- From introduction: This report contains part of the geologic information obtained from investigations conducted by the USGS on behalf of the AEC to determine the geologic environment of the underground test sites at Nevada Test Site.
- Interim Report on Geologic Investigations of the U12e Tunnel System, Nevada Test Site, Nye County, Nevada
- From introduction: The maps and tables comprising this report are being transmitted at this time to provide interested users with a summary of the geology of the Ul2e tunnel system. The system was constructed to provide access to underground test sites. This report contains part of the geologic information obtained from investigations conducted by the U. S. Geological Survey to determine the geologic environment of the underground test sites. Results of geophysical and radiometric surveys, and physical properties are being studied. This work was done on behalf of the U. S. Atomic Energy Commission.
- An Introduction to the Geochemistry of Gadolinium
- Report discussing the geochemistry of gadolinium, specifically the abundance of the element and its isotopes in the earth's crust.
- Notes on the Differential Leaching of Uranium, Radium, and Lead From Pitchblende in H2SO4 Solutions
- Report discussing the leaching of uranium, radium and lead from oxidized black Katanga pitchblende. Results of leaching are included.
- The Occurrence and Properties of Metatyuyamunite
- A report about a new mineral called metatyuyamunite which is a dehydration product of tyuyamunite. This mineral has been collected from more than 35 localities in the Colorado Plateaus,several localities in Fall River County, S. Dakota, and Campbell and Johnson Counties, Wyo.
- Outline of Geology of the U12j and U12j.01 Tunnels, Nevada Test Site
- Description and outline of the geology of the U12j and U12j.01 tunnels in the Survey Butte Member of the Piapi Canyon Formation in Nevada.
- Preliminary Report on the Geology and Mineral Deposits of the Northern Elkhorn Mountains, Jefferson and Broadwater Counties, Montana
- From introduction: This preliminary report details the geology and mineral deposits of the northern Elkhorn Mountains, Montana.
- Preliminary Report : Placer Deposits of Monazite
- The following report provides information and results of an investigation on heavy mineral concentrates available in the placer deposits of North Carolina during the summer of 1946.
- Preliminary Report : Radioactivity of Pennsylvanian Black Shales and Coals in Kansas and Oklahoma
- The following report provides information on the first field work on the radioactivity of Pennsylvanian black shales in Oklahoma and Kansas, 1944, and their findings.
- Progress on Detection of Radioactivity by Airborne Equipment
- Report discussing a method for detecting gamma radioactivity from ground sources with transport planes.
- Progress Report on the Geology and Uranium Deposits of the Gas Hills Area, Fremont and Natrona Counties, Wyoming
- From introduction: This report concerns the investigation of uranium deposits in the Gas Hills area in July 1954.
- Proposed Nomenclature of Part of Upper Triassic Strata in Southeastern Utah
- Report discussing a proposed nomenclature of Upper Triassic rocks in southeastern Utah in which two types of strata are lumped together in the Chinle formation and that the Shinarump conglomerate be redefined as the Shinarump member of the Chinle formation.
- Radioactivity at the Copper Creek Copper Lode Prospect, Eagle District, East-Central Alaska
- Report discussing the investigation of radioactivity at the Copper Creek related to copper mineralization in sedimentary rocks. The radioactivity probably originated from uranium relating to bornite and malachite.
- Reconnaissance for Uranium in Asphalt-Bearing Rocks in the Western States
- Report presenting the results of field investigations for uranium in asphalt-bearing rocks in the western states during 1953 and 1954.
- Reconnaissance Investigation of Uranium Occurrences in the Saratoga Area, Carbon County, Wyoming
- A report about uranium deposits found in carnotite.
- Reconnaissance investigation of uranium occurrences in the Saratoga area, Carbon County, Wyoming
- Discussing the reconnaissance investigation of uranium occurrences in the Saratoga Area, in Carbon County, Wyoming
- Reconnaissance Investigations for Uranium in Black Shale Deposits of the Western States during 1951 and 1952
- Report discussing investigations seeking uranium in deposits of black shale around the geographical areas of the Western States
- Retention of Uranium During Oxidative Ashing of Selected Naturally Occurring Carbonaceous Substances
- Abstract: Data are presented to show that no appreciable loss of uranium occurs when uranium-bearing carbonaceous materials undergo oxidative ashing under routine conditions and with routine care.
- Selected Annotated Bibliography of the Geology of Uraniferous Phosphorites in the United States
- From Introduction: "The references in this bibliography represent nearly all of the reports pertaining to uranium in domestic phosphorites that were publicly available as of May 31, 1955."
- Separation of Aluminum Phosphate Minerals From Kaolinite by Selective Solution
- Abstract: Wavellite, crandallite, and millisite are completely dissolved by boiling samples for 20 minutes with 1+1 hydrochloric acid; only 1 percent of the aluminum present in kaolinite is dissolved. This method of decomposition can therefore be used for differentiating the aluminum present in wavellite, crandallite, and millisite form that in kaolinite in samples from the aluminum phosphate zone. This method should prove valuable in prospecting and benefication studies.
- The Spectrophotometric Determination of Vanadium as Thiocyanate in Acetone-Water Medium
- A report about a method for the spectrophotometric determination of vanadium in acetone-water medium based on the reaction between vanadium (IV) and thiocyanate.