Collection
Serial/Series Title
United States Bureau of Mines Reports
5
United States Geological Survey Reports
5
Trace elements investigations report
3
NBS monograph
2
National Bureau of Standards Reports
2
Atomic Energy Commission Reports
1
RME
1
Report of investigations (United States. Bureau of Mines)
1
Strategic minerals investigations
1
Technical paper (United States. Bureau of Mines)
1
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Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910: Part 1. -- Analyses
From Significance and value of Analyses of Coal: "The analyses published in this report cover samples of coal collected in many different parts of the country with unusual care by experiences men, in such manner as to make them representative of extensive beds of coal."
Date:
1913
Creator:
Lord, N. W.
Object Type:
Report
System:
The UNT Digital Library
Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910 Part 2. Descriptions of Samples
From Introduction: "This volume contains the descriptions of the samples whose analyses are published in the preceding volume, Part I of this bulletin. The descriptions have been compiled from the notebooks of the persons who collected the samples, have been condensed from accounts given in published reports of the United States Geological Survey, or have furnished by the collection themselves. Inasmuch as the descriptions represent the work of many persons during a period of six years, and inasmuch as they were recorded under widely differing conditions, they necessarily vary in fullness detail."
Date:
1913
Creator:
Lord, N. W.
Object Type:
Report
System:
The UNT Digital Library
Treatment of the Tungsten Ores of Boulder County, Colo.
Report discussing the the development of milling practice in Boulder County, the ore-dressing methods in use, and the local manufacture of ferrotungsten and tungstic oxide. Figures giving the production of tungsten concentrates in the Boulder district, in the United States, and in the world; data on the buying of tungsten ores; costs of production; and the normal tungsten requirements in this country are presented.
Date:
October 1921
Creator:
Bonardi, J. P. & Williams, J. C.
Object Type:
Report
System:
The UNT Digital Library
Geophysical Prospecting: Some Electrical Methods
Technical paper issued by the Bureau of Mines over experiments in electrical methods. The methods and equipment used are presented and described. This paper includes tables, illustrations, and photographs.
Date:
1928
Creator:
Eve, A. S. & Keys, D. A.
Object Type:
Report
System:
The UNT Digital Library
Nickel Deposit Near Gold Hill, Boulder County, Colorado
From Introduction: "Scattered throughout the Colorado Front Range, there are many small copper deposits, believed to be of pre-Cambrian age. The have been widely prospected but have produced little or no ore. In one of these, the Copper King mine, near Gold Hill, Colo., nickel was discovered in 1930, and development in the following years has exposed some 25,000 tons of ore containing from 2 to 3 percent of nickel. No other nickel deposit is known in the Front Range, but a somewhat similar deposit has been opened in Gem mine, near Canon City and about 120 miles south of Gold Hill."
Date:
1942
Creator:
Goddard, Edwin N. & Lovering, T. S.
Object Type:
Report
System:
The UNT Digital Library
Size Consist, Chemical Analysis, and Physical Properties of 2-1/2-Inch Subbituminous Slack from the Denver, Colorado Region
Report issued by the U.S. Bureau of Mines on sub-bituminous slack from Denver, Colorado. The characteristics and properties of 2-1/2 inch slack samples are listed. This report includes tables, graphs, maps, illustrations, and photographs.
Date:
August 1942
Creator:
Parry, V. F. & Landers, W. S.
Object Type:
Report
System:
The UNT Digital Library
Hydrothermal Uranothorite in Fluorite Breccias From the Blue Jay Mine, Jamestown, Boulder County, Colorado
Report discussing the identification of hydrothermal uranothorite from fluorite breccias in Colorado and its comparison/contrasting with other uranothorites and thorites. A description of thorium halos in fluorite is given.
Date:
March 1951
Creator:
Phair, George & Onoda, Kiyoko
Object Type:
Report
System:
The UNT Digital Library
Results of exploration for uranium at the Caribou Mine, Boulder County, Colorado
This report discusses the results of an exploration made for uranium sources at the Caribou Mine in Boulder County, Colorado.
Date:
May 1953
Creator:
Smith, Loren E. & Baker, Kenneth E.
Object Type:
Report
System:
The UNT Digital Library
Geology and uranium deposits of the Caribou area, Boulder County, Colorado
A report regarding the geology and uranium deposits of the Caribou Area, in Bouler County, Colorado. This report concerns work done on behalf of the Division of Raw Materials of the U.S. Atomic Energy Commission.
Date:
March 1954
Creator:
Moore, Frank B.; Cavender, Wayne S. & Kaiser, Edward Peck
Object Type:
Report
System:
The UNT Digital Library
Reconnaissance for Radioactivity in the Gold Hill Mining Area, Boulder County, Colorado, Part 1
Abstract: Several radioactive deposits were found as a result of reconnaissance in the Gold Hill mining area, Boulder County, Colo. The ore deposits of the area have been worked chiefly for gold. All ore shipped has come from fissure veins, most of which are gold telluride veins. There are, however, some important sulfide veins which show a vague zonal distribution of pyritic gold ores and silverlead ores. The results of this reconnaissance suggest a possible relationship of the radioactive deposits to this indistinct sulfide zoning; however, the zoning is so obscure that its practical application to prospecting for uranium is of doubtful value at the present time. Pitchblende, torbernite, metatorbernite, and schroeckingerite have been identified in specimens from the area; however, no uranium minerals have yet been identified from most of the radioactive deposits, and the uraniferous material present is probably in disseminated small particles. Although selected samples from several localities assay 0.10 percent uranium or more, the known deposits are small and probably are not of immediate economic importance
Date:
February 1955
Creator:
Campbell, R. H.
Object Type:
Report
System:
The UNT Digital Library
Microwave Spectral Tables: [Volume 1.] Diatomic Molecules
From Abstract: "For about 1500 spectral lines of diatomic molecules observed by coherent radiation techniques, measured frequencies, assigned quantum numbers, and newly computed intensities are given."
Date:
December 1, 1964
Creator:
Wacker, Paul F.; Mizushima, Masataka; Peterson, Jean D. & Ballard, Joe R.
Object Type:
Report
System:
The UNT Digital Library
Technical Progress Report.
None
Date:
January 1, 1971
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Excitation Energies of Levels in 16F, 20Na, and 24Al.
None
Date:
October 31, 1972
Creator:
Moss, C.E. & Comiter, A.B.
Object Type:
Report
System:
The UNT Digital Library
Remarks on Absorptive Potentials and Heavy Ion Elastic Scattering.
None
Date:
October 31, 1972
Creator:
Rickertsen, L. D.
Object Type:
Report
System:
The UNT Digital Library
Comment on Macroscopic Analysis of (P,N) Reactions
None
Date:
January 1, 1973
Creator:
Kunz, P. D.; Rickertsen, L. D. & Hoffmann, G. W.
Object Type:
Report
System:
The UNT Digital Library
Thermocouple Reference Tables Based on the IPTS-68
From Abstract: "Revised reference data for thermocouples have been generated in a cooperative program between groups of the National Bureau of Standards in Boulder and Gaithersburg.This Monograph contains tables, analytic expressions, various approximations, and explanatory text.
Date:
March 1974
Creator:
Powell, Robert L.; Hall, William J.; Hyink, Clyde H., Jr.; Sparks, Larry L.; Burns, George W.; Scroger, Margaret G. et al.
Object Type:
Report
System:
The UNT Digital Library
Technical Progress Report, November 1, 1973--November 1, 1974
None
Date:
November 1, 1974
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Nuclear Physics Laboratory, University of Colorado Technical Progress Report, 1976 and Proposal for Continuation of Contract
This report summarizes the work carried out at the Nuclear Physics Laboratory of the University of Colorado during the period November 1, 1975 to November 1, 1976. The low energy nuclear physics section is dominated by light-ion reaction studies which span a wide range. These include both two-neutron and two-proton transfer reactions, charge exchange and inelastic scattering, as well as single nucleon transfer reactions. The nuclei studied vary widely in their mass and characteristics. These reaction studies have been aided by the multi-use scattering chamber which now allows the energy-loss-spectrometer beam preparation system (beam swinger) to shift from charged particle studies to neutron time-of-flight studies with a minimum loss of time. The intermediate energy section reflects the increase in activity accompanying the arrival of LAMPF data and the initiation of (p,d) studies at the Indiana separated-sector cyclotron. The nucleon removal results provided by the ..pi.. beam at EPICS previous to completion of the spectrometer have shown that nuclear effects dominate this process, so that the widely used free interaction picture is inadequate. The section entitled ''Other Activities'' reveals continuing activities in new applications of nuclear techniques to problems in medicine and biology. Reactions important to astrophysics continue to be investigated …
Date:
November 1, 1976
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Technical Progress Report. [Nuclear Physics Lab. , Univ. Of Colorado]
This report summarizes the work carried out at the Nuclear Physics Laboratory of the University of Colorado during the period November 1, 1977 to November 1, 1978, under Contract EY-76-C-02-0535.A002 between the University of Colorado and the United States Department of Energy. The research activities of the Laboratory spanned a broad range of interests over the past year. Numerous topics in charged-particle spectroscopy and reaction studies, neutron time-of-flight measurements, and gamma-ray investigations performed at the cyclotron laboratory are covered in this report. In addition, several items in intermediate energy nuclear physics as studied at Los Alamos and Indiana University by members of the Laboratory are reported. The efforts in nuclear theory include studies in nuclear reaction mechanisms and pion scattering as related to the experimental program. Information is also included on apparatus and facility development, cyclotron operation, outside users, publications, and reports. Separate abstracts were written for thirty items in this report having significant amounts of data. (RWR)
Date:
November 1, 1978
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Technical Progress Report, November 1, 1979-October 31, 1980. Report Npl-865. [Univ. Of Colorado]
Work carried out at the Nuclear Physics Laboratory of the University of Colorado from November 1, 1979 through October 31, 1980 is summarized. Emphasis was on light ion reaction studies with the AVF cyclotron. The high resolution magnetic spectrometer has allowed studies of nucleon transfer, scattering, and charge exchange reactions throughout the periodic table. More experiments have been run with solid state counters this year than has been the case recently, as a broad range spectra of the light nuclei where only moderate resolution is demanded were examined. Several of these experiments were undertaken for more detailed studies of excitations seen with higher energy probes. Multiple coincidence measurements with neutron and gamma-ray counters have opened a new program in pre-equilibrium reactions and provided a new signature for the study of neutron-deficient final nuclei. The neutron time of flight program has expanded to higher excitation and to use of the (d,n) and (..cap alpha..,n) direct nucleon transfer reactions. Three important experiments were completed at the EPICS pion scattering facility at LAMPF, and other low energy pion scattering data were obtained at TRIUMF. Several (p,d) runs at high energies were accomplished, some with polarized beams at TRIUMF. High-lying structures in medium mass …
Date:
November 1, 1980
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Numerical Calculation of the Three Dimensional Electrical Field in the Central Region of a Cyclotron
To provide detailed and accurate electric fields in the ion source-puller region and at the dee dummy-dee gap for a cyclotron, a relaxation method solution of Laplace's equation has been used. A conventional difference equation with variation in mesh size and relaxation factor as well as different schemes for boundary corrections have been developed to achieve roughly 1 percent accuracy for a thre-dimensional domain with 10/sup 6/ mesh points. Although the computation requires considerable computer time, it is much less expensive than electrolytic tank analogue methods for measuring field distributions around complex electrode configurations.
Date:
January 1, 1981
Creator:
Chen, M. & Lind, D. A.
Object Type:
Article
System:
The UNT Digital Library
Shallow Ground Water in the Boulder-Fort Collins-Greeley Area, Front Range Urban Corridor, Colorado, 1975-77
From introduction: This investigation was made as part of a comprehensive geohydrologic study of the Front Range Urban Corridor in Colorado conducted by the U.S. Geological Survey. The purpose of the study was to delineate the areal extent of the aquifer, the altitude and configuration of the water table, and the gradient and underflow in various parts of the area, in order to better understand the quality of water moving into and through the aquifer.
Date:
1983
Creator:
Schneider, Paul A., Jr.
Object Type:
Report
System:
The UNT Digital Library
Chemically Assisted in Situ Recovery of Oil Shale. [Quarterly Report], April 1, 1990--June 30, 1990
The objective of this work is to investigate, in the laboratory, the parameters associated with a chemically assisted in situ recovery procedure, using hydrogen chloride (HCI), carbon dioxide (CO{sub 2}), and steam (H{sub 2}O), to obtain-data useful to develop a process more economic than existing processes and to report all findings. The technical progress of the project is reported. The progress of the project is that experiment preparations are underway. Reactor design, process design, and experiment design have been completed. The laboratory to be used has required extensive clean-up, and is nearly ready. Safety considerations are underway. Finally, an initial literature search has revealed some important aspects that need to be considered.
Date:
December 31, 1990
Creator:
Ramirez, W. F.
Object Type:
Report
System:
The UNT Digital Library
Chemically Assisted in Situ Recovery of Oil Shale. Technical Progress Report, April 1, 1991--June 30, 1991
The objective of this work is to investigate, in the laboratory, the parameters associated with a chemically assisted in situ recovery procedure, using hydrogen chloride (HCI), carbon dioxide (CO{sub 2}), and steam (H{sub 2}O), to obtain data useful to develop a process more economic than existing processes and to report all findings. Quarter summary: all modifications previously planned where completed and a reaction experiment was run. A couple design flaws were discovered, improvements were designed, and all parts are expected in the first week of July. Experiment {number_sign}6 is expected to run the following Monday. Barring further mishap, experiments will be run one each week thereafter. The project is behind schedule, but the project is well positioned to make significant and considerable progress.
Date:
December 1, 1991
Creator:
Ramirez, W. F.
Object Type:
Report
System:
The UNT Digital Library