UScholar Works
 
Filters: School Or College: "College of Mines & Earth Sciences" Collection: "ir_uspace"
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CreatorTitleDescriptionSubjectDate
1 Miller, Jan D.The behavior of arsenic trioxide in non-ferrous extractive metallurgical processingStudy of the acid bake-leach process has shown potential advantages for the treatment of enargite (Cu3AsS4) concentrates. Among the most important advantages of the process is the transformation of enargite to water-soluble copper sulfate and highly soluble arsenic trioxide (arsenolite). Because ars...2014-01-01
2 Brown, Francis HaroldThe evolution of neogene terrestrial ecosystems in EuropeThe Pliocene-Pleistocene chronology of hominid and other vertebrate evolution in East Africa is largely constrained by isotopic dating and regional intercorrelation of volcanic ash layers. Some eruptions were of sufficient magnitude or duration that their widespread tephra dispersal defines a serie...1999
3 Jewell, PaulGeochemistry and paleoceanographic setting of Central Nevada bedded baritesThe bedded barite deposits of central Nevada are hosted by rocks of the Roberts Mountains allochthon and constitute the largest barite reserves in North America. Detailed geochemical studies of three barite deposits in the Devonian Slaven Chert indicate that rocks surrounding the barite have elevate...Bedded barites; Roberts Mountains allochthon; Late Devonian1991
4 Jewell, PaulCirculation, salinity, and dissolved oxygen in the Cretaceous North American seawayCritical paleoceanographic problems regarding the maximum transgressive phase of the Cretaceous North American seaway have been studied with a three-dimensional ocean circulation model. Four simulations employing minimum and maximum solar insolation winds from the Cretaceous and a wide range of pre...Cretaceous North American Seaway1996
5 Miller, Jan D.Infrared spectroscopy for in-situ characterization of surface reactionsInfrared spectroscopy has been one of the most useful experimental techniques for the analysis of surface reactions in flotation systems, including surface alteration and surfactant adsorption reactions. With the advent of Fourier transform infrared (FTIR) spectrometers, many low-energy throughpu...Reflection; Flotation; Measurements1989
6 Chapman, David S.; Harris, Robert N.; Allis, Richard GeorgeGravity signals at the Geysers geothermal systemThree high-precision gravity and GPS surveys have been conducted over The Geysers geothermal reservoir and surrounding area. These surveys, in September 2000, April 2001, and September 2001, provide an initial baseline for future imaging studies of spatial mass changes from the Santa Rosa Efflu...Ground water change; Gravity surveys2002
7 Zhdanov, Michael S.Parameter estimation for 3-D geoelectromagnetic inverse problemsParameter estimation in geoelectromagnetics aims to obtain the most important parameters of a well-defined conductivity model of the Earth. These parameters are features of typical geological structures, such as depth and size of conductive or resistive targets, angle of dike inclination and its le...1999-01-01
8 Miller, Jan D.Particle interactions in kaolinite suspensions and corresponding aggregate structuresThe surface charge densities of the silica face surface and the alumina face surface of kaolinite 13 particles, recently determined from surface force measurements using atomic force microscopy, 14 show a distinct dependence on the pH of the system. The silica face was found to be negatively 15 char...2011-01-01
9 Jarrard, Richard D.Seismic stratigraphy and history of deep circulation and sediment drift development in Baffin Bay and the Labrador SeaDrilling results and seismic-reflection records at and across Ocean Drilling Program (ODP) Sites 645 (western Baffin Bay), 646, and 647 (Labrador Sea) provide important constraints on the history of deep-water circulation and sedimentation in response to Cenozoic climatic change, as well as the tect...1989
10 Miller, Jan D.Nonsulfide flotation technology and plant practiceThere are hundreds of nonsulfide mineral flotation plants throughout the United States, and most have a plant design that depends upon the specific ore characteristics and the market specifications for their product. There is no common thread of technology between the design and processing of diffe...Flotation; Minerals; Processing plants2002
11 Miller, Jan D.; Nalaskowski, JakubFlotation chemistry and technology of nonsulfide mineralsThe dimensions of nonsulfide flotation technology extend in many directions, as might be expected from the diversity of the mineral classes, which include soluble salt minerals (potash, borax, and trona), semisoluble salt minerals (phosphate minerals, fluorite, calcite, and barite), and insoluble ox...Flotation; Insoluble collectors; Salt minerals; Nonsulfide minerals2007
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