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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.
Item Type: Report

Geology of Devils Tower National Monument, Wyoming

Description: From abstract: Devils Tower is a steep-sided mass of igneous rock that rises above the surrounding hills and the valley of the Belle Fourche River in Crook County, Wyo. It is composed of a crystalline rock, classified as phonolite porphyry, that when fresh is gray but which weathers to green or brown. Vertical joints divide the rock mass into polygonal columns that extend from just above the base to the top of the Tower.
Date: 1956
Creator: Robinson, Charles Sherwood
Item Type: Report

Gravity and Aeromagnetic Studies of the Powder River Basin and Surrounding Areas, Southeastern Montana, Northeastern Wyoming, and Western South Dakota

Description: From abstract: This report contains complete Bouguer anomaly, isostatic residual anomaly, and horizontal gradient anomaly gravity maps of the Powder River Basin and surrounding areas in southeastern Montana, northeastern Wyoming, and western South Dakota were compiled using gravity data from 21,528 stations. A total-intensity anomaly aeromagnetic map with 3 mile spaced east-west flight-lines is also presented. Also included is an analysis of these maps and data, focusing on gravity and aeromagnetic studies.
Date: 1994
Creator: Robbins, Stephen L.
Item Type: Report

Gypsum Products: Their Preparation and Uses

Description: Technical report issued by the Bureau of Mines over the different uses of gypsum. The sources and uses of gypsum are presented and discussed. This report includes tables, photographs, and illustrations.
Date: July 1917
Creator: Stone, Ralph W.
Item Type: Report

Investigation of Sublette Ridge Vanadium Deposit, Lincoln County, Wyoming

Description: Report issued by the Bureau of Mines over studies conducted on vanadium deposits in Lincoln County. As noted in the introduction, "the following report covers the history of the district, outlines the physical features and communications, mentions the property, and notes the ownership. The deposits and ore are described, and work performed by the Bureau of Mines is explained in detail" (p. 1). This report includes tables, and maps.
Date: June 1949
Creator: Allsman, Paul T.; Majors, Forest H.; Mahoney, Stanford R. & Young, W. A.
Item Type: Report

Investigation of Tuffs Near Lysite, Wyoming for Selenium

Description: Report issued by the Bureau of Mines over studies conducted on seleniferous tuff deposits in Wyoming. Results of the tuff samples obtained are presented. This report includes tables, maps, photographs, and illustrations.
Date: January 1957
Creator: Everett, Floyd D. & Bauerle, L. C.
Item Type: Report

Investigations of Salt River Vanadium Deposits, Lincoln County, Wyoming

Description: Report issued by the Bureau of Mines over studies conducted on the vanadium deposits of Lincoln County, Wyoming. As stated in the introduction, "the work performed by the Bureau of Mines is explained in detail and supplemented with plans, sections, and a complete set of sample analyses. Proposed mining methods are discussed, and metallurgical tests are outlined" (p. 2). This report includes tables, maps, and illustrations.
Date: August 1949
Creator: Allsman, Paul T.; Majors, Forest H.; Mahoney, Stanford R. & Young, W. A.
Item Type: Report

Laramie Sponge-Iron Pilot Plant

Description: Report issued by the Bureau of Mines over studies conducted on the pilot plant in Laramie County, Wyoming. As stated in the introduction, "the purpose of this report is to record information derived from recent experimental work that had as its objective the development and demonstration of one method of producing sponge iron" (p. 2). This report includes tables, illustrations, and photographs.
Date: September 1948
Creator: Johnston, T. L. & Mahan, W. M.
Item Type: Report

Life Zone Investigations in Wyoming

Description: Characterizes five transcontinental life zones in Wyoming; defines their extent and limits; lists mammal, breeding bird, reptile, amphibian, and plant species; and provides notes on distribution and abundance of trees observed during the survey.
Date: October 3, 1917
Creator: Cary, Merritt
Item Type: Report

Longwall Gate Road Stability in a Steeply Pitching Thick Coal Seam with a Weak Roof

Description: The U.S. Bureau of Mines (USBM) conducted ground pressure analysis of a wide abutment-type chain pillar in a two-entry gate road of a Western U.S. coal mine with an extremely weak immediate roof. About 15 m of fragile, low-strength mudstone lies between the seam and the lowest competent roof member. Three- and two-entry gate road designs with several pillar sizes and various secondary support systems have been employed to improve tailgate-entry stability, with varying results. This report discusses gate road layout and performance and secondary support effectiveness. The results of the pillar pressure study are compared to pillar loading predicted by a widely used pillar design method and to similar studies in other mines. A stability evaluation of the most recent longwall headgate, using the USBM Analysis of Longwall Pillar Stability (ALPS) method, indicates marginal stability in first-panel mining and instability in second-panel mining. The ALPS method and the USBM Coal Mine Roof Rating system are used to evaluate tailgate-mining stability of the previous gate roads and to determine pillar and entry width and top coal thickness criteria for tailgate stability in future panels.
Date: 1995
Creator: Barron, Lance R. & DeMarco, Matthew J.
Item Type: Report

Loss of Life Among Wearers of Oxygen Breathing Apparatus

Description: Report issued by the U.S. Bureau of Mines discussing fatalities of mine workers while wearing self-contained oxygen breathing apparatuses. Descriptions of the circumstances surrounding the deaths of 26 workers are presented. This report includes a table.
Date: April 1944
Creator: Grove, G. W.
Item Type: Report

Low-Temperature Carbonization Assays of North American Coals

Description: Report issued by the Bureau of Mines over studies conducted on low-temperature carbonization of coal. Methods and results of the studies are presented and discussed. This report includes tables, illustrations, and photographs.
Date: 1957
Creator: Selvig, W. A. & Ode, W. H.
Item Type: Report

Magnetite and Ilmenite Resources, Iron Mountain Area, Albany County, Wyoming

Description: Report issued by the U.S. Bureau of Mines discussing magnetite and ilmenite mining methods and practices. As stated in the introduction, "this report summarizes the exploration of the titaniferous iron deposits in the Iron Mountain area, Albany County, Wyo." (p. 1). This report includes maps, tables, illustrations, and photographs.
Date: 1961
Creator: Dow, Vernon T.
Item Type: Report

[Marysvale Region Study], Annual Report: June 30, 1953-April 1, 1954, Part 1

Description: 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
Item Type: Report