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Palladium Catalyzed Coupling Reactions: Mechanism of Reductive Elimination. Progress Report, October 1, 1979-September 30, 1980. [Ethane Elimination]

Description: The 1,1-reductive elimination of ethane from three cis-bis(phosphine)-dimethylpalladium complexes, L/sub 2/Pd(CH/sub 3/)/sub 2/ (L = PPh/sub 3/, PPh/sub 2/,CH/sub 3/ and L/sub 2/ = Ph/sub 2/PCH/sub 2/CH/sub 2/PPh/sub 2/), and three trans analogs (L = PPh/sub 3/, PPh/sub 2/CH/sub 3/ and L/sub 2/ = 2,11-bis(diphenylphosphinomethyl)benzo(c)phenanthrene (TRANSPHOS)) was carried out. The three cis complexes underwent reductive elimination in the presence of coordinating solvents (DMSO, DMF, and THF)… more
Date: September 1, 1980
Creator: Stille, J. K.
Partner: UNT Libraries Government Documents Department
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Novel Concepts in Electrochemical Solar Cells. Third Quarterly Progress Report, November 15, 1979-January 15, 1980. [Molten Salt Electrolytes]

Description: Efforts have been primarily directed toward evaluation of the room temperature molten salt electrolyte in terms of its overall performance for photovoltaic cells. Mass transport processes may prove to be the rate-limiting factor for such electrolytes, unless the concentration of the photo-active redox component can be increased and the solvent viscosity reduced. Acid-base surface chemistry of n-GaAs as occurs in aqueous systems, has been found present and its consequences will be further explor… more
Date: January 1, 1980
Creator: DuBow, J.; Job, R. & Krishnan, R.
Partner: UNT Libraries Government Documents Department
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Engineering Report on Drilling in the Sand Wash Basin, Colorado

Description: "This report consists of engineering details, statistics, individual borehole histories, and logistics for the 27 boreholes drilled in the project. Geophysical logs are included." (from Introduction)
Date: January 1980
Creator: Callihan, Michael C.
Partner: UNT Libraries Government Documents Department
open access

Engineering Report on Drilling in the Sand Wash Basin Intermediate Grade Project

Description: "This report consists of engineering details, statistics, and logistics of the 19 boreholes drilled in the project. Geophysical logs are included on microfiche in the back of this report." (from Introduction)
Date: September 1980
Creator: Callihan, Michael C.
Partner: UNT Libraries Government Documents Department
open access

Uranium Exploration on the Colorado Plateau: Interim Staff Report

Description: This report is an issue of the original draft copy of the "Interim Staff Report on Uranium Exploration on the Colorado Plateau", dated June 1951. The original draft copy was only recently located and is being published at this time because of the interest in the contained historical content.
Date: October 1980
Partner: UNT Libraries Government Documents Department
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Geology and Uranium Evaluation of the Precambrian Quartz-Pebble Conglomerates of the Needle Mountains, Southwest Colorado: Final Report

Description: From purpose of study: The Vallecito Conglomerate of the Needle Mountains area in southwestern Colorado was studied to evaluate the uranium potential of the unit and to test the applicability of the uraniferous Precambrian pebble-conglomerate exploration model in this area. The main thrust of this project is the Vallecito Conglomerate, but the Uncompahgre Formation, which is also in the Needle Mountains area has basal conglomerate that was investigated in a reconnaissance mode. Five specific ob… more
Date: May 1980
Creator: Burns, L. K.; Ethridge, Frank G.; Tyler, N.; Gross, A. S. & Campo, A. M.
Partner: UNT Libraries Government Documents Department
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The Uinta Arch Project -- Investigations of Uranium Potential in Precambrian X and Older Metasedimentary Rocks in the Uinta and Wasatch Ranges, Utah and Colorado: Final Report

Description: From introduction: This study is part of the United States Department of Energy's National Uranium Resource Evaluation Program to understand the geologic setting, amount, and availability of uranium resources within the boundaries of the United States.
Date: June 1980
Creator: Graff, P. J.; Sears, J. W. & Holden, G. S.
Partner: UNT Libraries Government Documents Department
open access

Variability Within the Ocean-Atmospheric System Over the North Pacific

Description: Characteristics of the oceanic mixed layer over the North Pacific were examined utilizing a number of statistical methods. Based on the analyses of twelve years of data, a quasi-meridional differentiation (QMD) in sea surface temperature (SST) spectra across the North Pacific was observed. The SST spectra became increasingly red as an increasing function of latitude. A strong 21 to 26 day cycle in SST anomalies is discussed which may be a reflection of heat fluxes. These fluxes also vacillate s… more
Date: January 1, 1980
Creator: Ciesielski, P E
Partner: UNT Libraries Government Documents Department
open access

Technical Progress Report, November 1, 1979-October 31, 1980. Report Npl-865. [Univ. Of Colorado]

Description: 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 l… more
Date: November 1, 1980
Partner: UNT Libraries Government Documents Department
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Uranium Hydrogeochemical and Stream Sediment Reconnaissance of the Vernal NTMS Quadrangle, Utah/Colorado, Including Concentrations of Forty-Two Additional Elements

Description: Report documenting the results of chemical analysis for 422 water and 1552 sediment samples in the Vernal quadrangle, Utah/Colorado. It includes an overview of the area, methods, data analysis, and evaluation.
Date: August 1980
Creator: Purson, John D.; George, William E.; Minor, Michael M.; Gallimore, David L.; Talcott, Carol L.; Garcia, Sammy R. et al.
Location: None
Partner: UNT Libraries Government Documents Department
open access

Evaluating Methods for Determining Water Use in the High Plains in Parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming; 1979

Description: From introduction: "The U.S. Geological Survey began a 5-year study of the High Plains regional aquifer during the 1978 to provide the hydrologic information needed for the development of computer models to evaluate the aquifer's response to ground-water management alternatives." It contains maps, graphs, and tables.
Date: 1980
Creator: Heimes, Frederick J. & Luckey, Richard R.
Partner: UNT Libraries Government Documents Department
open access

Analysis of Stream Quality in the Yampa River Basin, Colorado and Wyoming

Description: From introduction: This report relates to the first of the above objectives by describing stream quality in the Yampa River basin through 1976, with particular emphasis on conditions from August 1975 through September 1976. The content of this report is, at times, relatively technical. This is intentional. The report is aimed not at planners and decision makers but rather at those persons assigned the task of having to design, implement, and interpret a river basin assessment. The techniques an… more
Date: April 1980
Creator: Wentz, Dennis A. & Steele, Timothy Doak
Partner: UNT Libraries Government Documents Department
open access

Aerial Radiometric and Magnetic Reconnaissance Survey of South-Central Colorado Trinidad Quadrangle: Volume 1. Instrumentation and Methods

Description: This report describes the study made to define areas showing surface indications of a generally higher uranium content where detailed exploration for uranium would most likely be successful in the Trinidad quadrangle.
Date: January 1980
Creator: Texas Instruments Incorporated
Location: None
Partner: UNT Libraries Government Documents Department
open access

Aerial Radiometric and Magnetic Reconnaissance Survey of South-Central Colorado Trinidad Quadrangle: Volume 2. [Results]

Description: Second volume of data from a radiometric and magnetic reconnaissance survey of the Trinidad quadrangle in Colorado, including "Results of the interpretation in the form of a preferred anomaly map, along with significance-factor profile maps stacked profiles, histograms, and descriptions of the geology and known uranium occurrences" (vol. 1, p. 1).
Date: January 1980
Creator: Texas Instruments Incorporated
Location: None
Partner: UNT Libraries Government Documents Department
open access

Multivariate Statistical Analysis of Stream Sediments for Mineral Resources from the Craig NTMS Quadrangle, Colorado

Description: Abstract: Multivariate statistical analyses were carried out on Hydrogeochemical and Stream Sediment Reconnaissance data from the Craig quadrangle, Colorado, to support the National Uranium Resource Evaluation and to evaluate strategic or other important commercial mineral resources. A few areas for favorable uranium mineralization are suggested for parts of the Wyoming Basin, Park Range, and Gore Range. Six potential source rocks for uranium are postulated based on factor score mapping. Vanadi… more
Date: June 1980
Creator: Beyth, Michael; McInteer, Carlotta; Broxton, David E.; Bolivar, Stephen L. & Luke, Mary E.
Partner: UNT Libraries Government Documents Department
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Detailed Uranium Hydrogeochemical and Stream Sediment Reconnaissance of the Tallahassee Creek, Badger Creek, Castle Rock Gulch, and Buffalo Gulch Areas in the Northwestern Part of the Pueblo NTMS Quadrangle, Colorado

Description: Report describing chemical analysis of 62 water and 620 sediment samples during a follow-up geochemical survey to search for uranium in the Pueblo quadrangle.
Date: July 1980
Creator: Shannon, Spencer Sweet, Jr.
Partner: UNT Libraries Government Documents Department
open access

Hydrologic Setting of Wetlands in the Cottonwood Lake Area, Stutsman County, North Dakota

Description: From abstract: This report studies a group of wetlands in the Cottonwood Lake area in Stutsman County to explore "the role of lakes and wetlands in the hydrology of the prairie environment." It contains maps, graphs, and tables.
Date: December 1980
Creator: Winter, Thomas C. & Carr, Mark R.
Partner: UNT Libraries Government Documents Department
open access

Cross-Spectral Study of the Spatial Relationships in the North Pacific Sea-Surface Temperature Anomaly Field. Report No. 23

Description: Cross-spectral analysis is used to examine the dependence of the temporal covariation of sea-surface temperature (SST) anomalies at pairs of spatially separated points in the North Pacific on (1) the time scale of the variations, (2) the relative displacement of the points and (3) their location within the North Pacific basin. Spatial scales considered here range from 1000 kilometers up to the width of the basin. The study focuses on cross-spectral estimates for the interannual frequency band, … more
Date: March 1, 1980
Creator: Middleton, John W.
Partner: UNT Libraries Government Documents Department
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