55 Matching Results

Search Results

Results: 1 - 24 next
open access

Review of State Mine Inspector's Reports as They Relate to Accidents from Falls of Roof

Description: Report issued by the U.S. Bureau of Mines over state mine inspection reports from 19 U.S. states. The information in the reports includes details of accidents, locations that specific accidents occurred, and proposed remedies for prevention of future accidents. This report includes tables.
Date: April 1929
Creator: Paul, James Washington
Partner: UNT Libraries Government Documents Department
open access

Memorandum Listing the Areas in Colorado, Utah, Arizona and New Mexico that are Geologically Favorable for Developing Large Reserves of Vanadium Ore by Prospecting

Description: Introduction: Vanadium ore is being mined at many places in western Colorado, southeastern Utah, northeastern Arizona, and northwestern New Mexico (fig. 1). Eight mills in this region produced about 4,300,000 pounds of V2 05 in 1942, representing about 90 percent of the vanadium obtained from domestic sources. Although ore production has mostly exceeded mill capacity since 1937, production during the last half of 1942 averaged only about 19,000 tons or ore a month, whereas the capacity of these… more
Date: April 10, 1943
Creator: Fischer, R. P.
Partner: UNT Libraries Government Documents Department
open access

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.
Partner: UNT Libraries Government Documents Department
open access

Unwatering and sampling of the Kirk Mine, Gilpin County, Colorado

Description: Two parts of a report. Part I is regarding unwatering and sampling of the Kirk mine. Part II discusses the geology of kirk mine. Kirk mine is located in Gilpin County, Colorado.
Date: April 30, 1945
Creator: Hill, J. M.; Selfridge, G. C.; George, D. R. & Guillotte, G. B.
Partner: UNT Libraries Government Documents Department
open access

Mining Program: Bureau of Mines Oil-Shale Project, Rifle, Colorado

Description: Report issued by the Bureau of Mines on the development of efficient mining methods for producing oil shale. Characteristics of the oil shale deposits of the Green River are presented. The results of core drilling and sampling in this area are also listed. This report includes tables, illustrations, maps, and photographs.
Date: April 1948
Creator: Gardner, E. D.
Partner: UNT Libraries Government Documents Department
open access

Electrical Resistivity Investigations of Carnotite Deposits in the Colorado Plateau

Description: From abstract: An investigation of the use of geophysical methods in prospecting for carnotite deposits in the Colorado Plateau was made by the Geophysics Branch of the U. S. Geological Survey between April 21 and June 24, 1949. Results of this preliminary work indicated that electrical resistivity methods could be used successfully.
Date: April 1951
Creator: Davis, W. E.
Partner: UNT Libraries Government Documents Department
open access

Geology of the Quartz Creek Pegmatite District, Gunnison County, Colorado

Description: Report discussing the geology of the Quartz Creek pegmatite district of Gunnison County, Colorado. "The Quartz Creek pegmatite district includes an area of about 29 square miles in the vicinity of Quartz Creek in Gunnison County, Colorado. This area contains 1,803 pegmatites that are intruded into pre-Cambrian rocks."
Date: April 1952
Creator: Staatz, Mortimer H. & Trites, Albert F.
Partner: UNT Libraries Government Documents Department
open access

Pegmatites of the Crystal Mountain District, Larimer County, Colorado

Description: From introduction: The study of the Crystal Mountain district, Larimer County, Colo., is but one phase of this post-World War II pegmatite program, in part carried out by the Geological Survey on behalf of the Division of Raw Materials of the Atomic Energy Commission.
Date: April 1952
Creator: Thurston, William R.
Partner: UNT Libraries Government Documents Department
open access

The Uranium Occurrences in the Martha E Prospect, Lawson-Dumont District, Clear Creek County, Colorado

Description: From introduction: The Martha E prospect, in Spring Gulch about three and one-half miles southwest of Idaho Springs, Colo. (fig. 1), is on a claim, originally called the Daisy Freese, which was first prospected by the Stanley Mines. The occurrence of radioactive minerals in the adit was called to the attention of the U. S. Geological Survey in 1950 by the owners of the claim. The Survey's Trace Elements Section Washington Laboratory identified metatorbernite, autunite, and sooty pitchblende.
Date: April 1952
Creator: Harrison, Jack Edward
Partner: UNT Libraries Government Documents Department
open access

Identification and Occurrence of Uranium and Vanadium Minerals From the Colorado Plateaus

Description: Abstract: "This report, designed to make available to field geologists and others information on identification and occurrence of uranium minerals of the Colorado Plateaus, contains physical properties, X-ray data, and in some instances results of chemical and spectrographic analysis of 24 uranium and 17 vanadium minerals. Also included is a table giving the optical properties of uranium minerals and a list of locations of mines from which the minerals have been identified."
Date: April 1953
Creator: Weeks, A. D. & Thompson, M. E.
Partner: UNT Libraries Government Documents Department
open access

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… more
Date: April 1953
Creator: Pierson, Charles Thomas & Singewald, Q. D.
Partner: UNT Libraries Government Documents Department
open access

Petrographical Investigations of the Salt Wash Sediments, Annual Technical Report: 1954

Description: 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 t… more
Date: April 1954
Creator: Griffiths, John C.; Cochran, J. A.; Groff, D. W. & Kahn, James Steven
Partner: UNT Libraries Government Documents Department
open access

Preliminary Analysis of Ore Distribution in the Gateway and Uravan Districts, Mesa and Montrose Counties, Colorado

Description: From abstract: The distribution of the known uranium deposits of the Colorado Plateau is being analyzed in order 1) to test for systematic relationships between that pattern and geologic factors, 2) to help guide exploration, and 3) to appraise the potential resources of the region and of each of its component areas.
Date: April 1954
Creator: Strobell, J. D., Jr.; Sample, R. D.; Stephens, H. G. & Gilbert, Cynthia C.
Partner: UNT Libraries Government Documents Department
open access

Reconnaissance for Radioactivity in the Metal-Mining Districts of the San Juan Mountains, Colorado

Description: Report discussing the U.S. Geological Survey's reconnaissance for radioactivity in thirty-four metal-mining districts of the San Juan Mountains, Colorado during 1951-1953. General geology of the area, methods of reconnaissance, and results of the reconnaissance are included.
Date: April 1956
Creator: Pierson, C. T.; Weeks, W. F. & Kleinhampl, F. J.
Partner: UNT Libraries Government Documents Department
open access

Reconnaissance for radioactivity in the metal-mining districts of the San Juan Mountains, Colorado

Description: "A reconnaissance for radioactive minerals in the San Juan Mountains, Colo. (fig. 1), was started in the western part by W.S. Burbank and C.T. Pierson in 1951, and continued in 1952 by Pierson, W.F. Weeks, and F.J. Kleinhampl, and in 1953 by Pierson and T.H.W. Loomis of the U.S. Atomic Energy Commission in the western part of the mountains in reconnaissance and in examination of a pitchblende occurrence found by Loomis. The work on which this paper is based was done by the Geological Survey on … more
Date: April 1956
Creator: Pierson, Charles Thomas; Weeks, W. F. & Kleinhampl, F. J.
Partner: UNT Libraries Government Documents Department
open access

Tectonic Map of Northern Colorado and Northeastern Utah, Showing the Distribution of Uranium Deposits

Description: From introduction: The compilation of the tectonic map of northern Colorado and northeastern Utah (area h, fig. 2) was done by the U. S. Geological Survey on behalf of the Division of Raw Materials of the U. S. Atomic Energy Commission. Structures shown on the map have been obtained from published geologic maps, and from unpublished data supplied by government agencies, private companies, and independent geologists. The various structures of the Foreland can be divided into three large classes … more
Date: April 1956
Creator: Osterwald, Frank W. & Dean, Basil G.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen