171 Matching Results

Search Results

Geologic Summary of the Central Valley of California with Reference to the Disposal of Radioactive Waste

Description: From introduction: This report describes the geology of the area only to the extent necessary for preliminary evaluation of the possibilities for the disposal of liquid radioactive waste by injection through deep wells. Their value will increase with development of extensive commercial production of atomic power and attendant creation of radioactive waste from the processing of spent fuel elements. The disposal of liquid waste in deep reservoirs is only one of several possibilities that must be considered.
Date: June 1960
Creator: Repenning, Charles Albert
Partner: UNT Libraries Government Documents Department

Ground Water Test Well C, Nevada Test Site, Nye County, Nevada : a Summary of Lithologic Data, Aquifer Tests, and Well Construction

Description: From introduction: USGS is appraising the possibility, however slight, that the ground water beneath the Nevada Test Site, possibly contaminated by nuclear detonations, may carry radioactive fission products to places where they may constitute a public hazard.
Date: 1962
Creator: Garber, M. S. & Thordarson, William
Partner: UNT Libraries Government Documents Department

Regional Hydrology of a Part of Southern Nevada: a Reconnaissance

Description: From introduction: This report summarizes the available hydrologic information for a part of Nevada surrounding the Nevada Test Site. It emphasizes the possibility that ground water may move from one basin to another, whereas the usual concept heretofore has been that the ground water of the region generally occurs in basins that are closed or nearly closed.
Date: July 1963
Creator: Eakin, Thomas E.; Schoff, Stuart L. & Cohen, Philip M.
Partner: UNT Libraries Government Documents Department

A Semiquantitative Spectrographic Method for the Analysis of Minerals, Rocks, and Ores (2)

Description: Abstract: The scope of the semiquantitative spectrographic method for the analysis of minerals, rocks, and ores previously described as determining 55 elements, has now been increased to 68 elements which can be estimated in one exposure of a l0-mg sample. Fluorine, the 69th element, requires a separate exposure for some materials. The method has been used to complete about 185,000 determinations in the past two years. Listed in this report are 336 chemical check analyses that indicate approximately 8 percent disagreements in the magnitude of one 10 percent bracket. No chemical and spectrographic results differ by a factor of more than 10.
Date: February 1952
Creator: Waring, C. L. & Annell, C. A.
Partner: UNT Libraries Government Documents Department

Carnotite Resources of the Legin Group Area, San Miguel County, Colorado

Description: From abstract: The Legin group area comprises five privately owned claims, nine Government claims, and some public land. The area is in parts of secs. 28 and 29, T. 43 N., R. 19 W., New Mexico principal meridian, San Miguel County, Colo. It is about 45 miles from the Government mill at Monticello, Utah, and 50 miles from the Vanadium Corporation of America mill at Naturita, Colo. The Legin group area has yielded a total production of more than 18,000 short tons of carnotite ore that averaged 0.32 percent U30 and 2.5 percent V 205 . Most of this production was accomplished during the years from 1935 to 1944, and from 1949 to October 1951.
Date: July 1952
Creator: Bell, Henry
Partner: UNT Libraries Government Documents Department

The Geological Survey's Work on the Geology of Uranium and Thorium Deposits

Description: From abstract: The Geological Survey has been studying the geology of uranium and thorium continuously since 1939, when it began a comprehensive investigation of the vanadium-uranium deposits of the Colorado Plateau. Greatly increased demand for uranium arising from the advent of controlled fission in 1942 resulted in widening of the study in 1944 to include other possible sources and in further expansion on behalf of the U. S. Atomic Energy Commission since 1947. The wide variety of materials investigated in this study are embraced by five somewhat arbitrary groups of related types of deposits as follows: (1) Igneous rocks, pegmatites, veins, and related deposits; (2) Deposits in sandstone of carnotite, copper-uranium, and other minerals; (3) Other consolidated sedimentary rocks; (4) Placers; and (5) Natural fluids.
Date: 1952
Creator: Butler, Arthur P., Jr.
Partner: UNT Libraries Government Documents Department

Distribution and Origin of Phosphate in the Land-Pebble Phosphate District of Florida

Description: From abstract: The land-pebble phosphate district of Florida is a part of the Gulf Coastal Plain. The geologic formations cropping out in the district are the Miocene Hawthorn, Pliocene Bone Valley, and Pleistocene terrace sands. The Bone Valley formation consists of a lower strongly phosphatic unit and an upper less phosphatic unit. This paper is concerned principally with the lower unit, which contains the bulk of the minable phosphate deposits of the district.
Date: June 1952
Creator: Cathcart, James B. & Davidson, David F.
Partner: UNT Libraries Government Documents Department

Occurrences of Uranium-Bearing Minerals in the St. Kevin District, Lake County, Colorado

Description: From abstract: Two hundred and seventy-one prospect pits, mine dumps, or mine workings within the Sugar Loaf-St. Kevin mining districts and vicinity, were tested for radioactivity by the U. S. Geological Survey in 1951 during six weeks of investigation on behalf of the Division of Raw Materials of the U. S. Atomic Energy Commission. One hundred and twenty-two weak radioactivity anomalies were found in the St. Kevin district and vicinity, and eight slight anomalies were noted in"-the Sugar Loaf district, which adjoins the St. Kevin district on the south, Most of the radioactivity anomalies were found in igneous and metamorphic rocks of pre=Cambrian age, but some were found in metalliferous veins of Tertiary age.
Date: May 1953
Creator: Pierson, Charles Thomas & Singewald, Q. D.
Partner: UNT Libraries Government Documents Department

Uranium Content of Chattanooga Shale in East-Central Tennessee and Southern Kentucky

Description: From abstract: Uranium assays of all the samples collected by the Geological Survey from the Chattanooga shale in east-central Tennessee and southern Kentucky from 1947 to 1949 are assembled here, and conclusions are drawn concerning the distribution of the uranium. The 1108 assays from 80 localities provide reasonably reliable information on the stratigraphic and regional variations of the uranium content.
Date: October 1952
Creator: Conant, Louis C. & Swanson, Vernon E.
Partner: UNT Libraries Government Documents Department

Geology and Uranium Occurrences in the Miller Hill Area, Carbon County, Wyoming

Description: Abstract: Uranium occurs in the North Park(?) formation of Pliocene(?) age in the Miller Hill area, about 25 miles south of Rawlins, Carbon County, Wyo. As much as 0. 5 percent uranium is contained in grab samples, but only about 1000 tons of rock are known to contain as much as 0. 03 percent uranium. Beds of brecciated, silicified limestone 3 to 10 feet thick contain the principal concentrations of uranium. Lesser concentrations are found in calcareous sandstone and quartzite. Uranophane, Ca(UOz)2SizO 7 . 6HZO, the principal uranium'mineral, has been deposited in vugs, as fracture and surface coatings, and as a disseminated constituent of the rock. Uranium also occurs in quantities too small to be megascopically visible in dark-colored chalcedony, lime stone, sandstone, and quartzite beds.
Date: May 1956
Creator: Vine, James David & Prichard, George E.
Partner: UNT Libraries Government Documents Department

Geology of the Raint Day Uranium Mine Garfield County, Utah

Description: From abstract: The Rainy Day mine in the Circle Cliffs area, Utah, is developed Dn a long slender pod of uranium ore. Ore is localized in siltstone of the Moenkopi formation of Triassic age, on the south edge of a channel about 3,300 feet wide by 40 feet deep that is filled with sandstone of the Shinarump member of the Chinle formation of Triassic age. Shale of the Chinle rests directly on siltstone of the Moenkopi on either side of the channel.
Date: April 1958
Creator: Davidson, Edward Sheldon
Partner: UNT Libraries Government Documents Department

Airborne Radioactivity Surveys for Phosphate in Florida

Description: Introduction: Deposits of phosphate in Florida, located beyond the limits of known producing areas, have been reported by prospectors and mining companies. Much of the information has been based upon prospecting and exploration which was undertaken many years ago and as a result the published data relating to the occurrence of these deposits are fragmentary, and few details relating to specific locations and extent are available.
Date: August 1953
Creator: Moxham, Robert Morgan
Partner: UNT Libraries Government Documents Department

Progress Report on Geologic Studies in the Capitol Reef Area, Wayne County, Utah

Description: From abstract: During 1951 about 60 square miles of the Capitol Reef area, Wayne County, Utah, the northern end of the Waterpocket Fold, was mapped by plane-table methods on a scale of 1:62, 500. Formations, with an approximate aggregate thickness of 3, 200 feet, range from the Coconino sandstone of Permian age to the Navajo sandstone of Jurassic (?) age. About 35 linear miles of Shinarump conglomerate of Triassic age was examined in detail. Cliffs 900 to 1, 000 feet high form the west face of Capitol Reef, which is on the east and northeast flanks of a structural and topographic dome, The uranium deposits are in the basal part of the Shinarump conglomerate. Zippeite and metatorbernite are the uranium minerals found, and are associated with copper minerals, carbonaceous matter, clay beds, a thick bleached zone at the top of the Moenkopi formation, and channels or scours in the top of the Moenkopi. The highest radioactivity is in a clay bed at the base of the Shinarump conglomerate, and was detected at 7 localities between Grand Wash and Capitol Gorge, at the Birch Spring prospect in Moonie Draw, and at the Oyler mine in Grand Wash.
Date: August 1952
Creator: Smith, J. Fred, Jr.; Hinrichs, E. Neal & Luedke, Robert G.
Partner: UNT Libraries Government Documents Department

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

Description: 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.
Partner: UNT Libraries Government Documents Department

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

Description: From introduction: Mining began in the Black Hawk (Bullard Peak) district in 1881 when high-grade silver ore was found at the Alhambra mine. Most of the silver produced was native silver, associated with nickel and cobalt arsenides and sulfides. In 1920 pitchblende was recognized on the dumps of some of the old mines, and since 1949 the district has been of interest as a possible source of ores that contain uranium, nickel, and cobalt.
Date: September 1953
Creator: Pierson, Charles Thomas & Singewald, Q. D.
Partner: UNT Libraries Government Documents Department

The Permian Phosphate Deposits of Western United States

Description: From abstract: The Permian marine phosphorite deposits of the western United States were laid down in the Phosphoria formation and its partial stratigraphic equivalents over an area of about 135,000 square miles in Montana, Idaho, Wyoming, Utah, and Nevada. The deposits in the eastern part of the field lie on the western margin of the structurally simple North American craton.
Date: October 1952
Creator: McKelvey, V. E.; Swanson, Rowena W. & Sheldon, Richard Porter
Partner: UNT Libraries Government Documents Department

Domestic Phosphate Deposits

Description: From abstract: Incomplete but recently partly revised estimates indicate the presence of about 10 billion tons of phosphate deposits in the Urited States that is minable under present economic conditions. Deposits too lean in quality or thickness to compete with those in the western and southeastern fields probably contain tens of billions of tons.
Date: November 1952
Creator: McKelvey, V. E.; Cathcart, James Bachelder; Altschuler, Z. S.; Swanson, Rowena W. & Lutz, Katharine
Partner: UNT Libraries Government Documents Department