A5050903157- Geochemistry and Geologic Mapping
- Geological and Geochemical Analysis
- Hydrocarbon exploration and reservoir analysis
- Geochemistry and Elemental Analysis
- Toxic Organic Pollutants Impact
- Geology and Paleoclimatology Research
- Air Quality and Health Impacts
- Paleontology and Stratigraphy of Fossils
- Geochemistry and Geochronology of Asian Mineral Deposits
- Atmospheric and Environmental Gas Dynamics
- Methane Hydrates and Related Phenomena
- Mineralogy and Gemology Studies
- Clay minerals and soil interactions
- Pesticide and Herbicide Environmental Studies
- Radioactive element chemistry and processing
- Heavy metals in environment
- Coal and Its By-products
- Geological formations and processes
- Metal Extraction and Bioleaching
- Atmospheric chemistry and aerosols
- earthquake and tectonic studies
- Mining Techniques and Economics
- Marine and environmental studies
- Geomagnetism and Paleomagnetism Studies
- Microbial bioremediation and biosurfactants
University of Missouri–Kansas City
2005-2020
Cranfield University
2011
Peking University
2003-2006
University of Missouri
1983-2005
Beijing Municipal Ecology and Environment Bureau
2003
Argonne National Laboratory
1988
Kansas City University
1979-1987
University of Michigan–Ann Arbor
1971
Quantitative relationships among social, economic, and climate parameters, energy consumption for Chinese provinces, provide data regression models' estimated rates of emission polycyclic aromatic hydrocarbons (PAHs) by county. A nonlinear model was used domestic coal combustion with total population annual mean temperature as independent variables. Linear models were utilized all other types fuel consumption. Monte Carlo simulation demonstrated that factors, rather than the modeling,...
Hydrogen gas occurs in ten Kansas wells near the Mid-Continent rift system. Since 1982, two have yielded small amounts of gases containing an average 29-37 mole % H2, remainder being chiefly N2 with only traces hydrocarbons. Isotopic compositions for hydrogen (^dgrD = -740 to -836 ^pmil) imply near-ambient (about 10°C) equilibration temperatures gases, which are among most deuterium-depleted nature and resemble H2-rich described from ophiolites Oman. values differ slightly those atmosphere,...
Unique bedded Ni-Mo ores hosted by black shales were discovered in localized paleobasins along the Yangzte platform of southern China 1971. Textural evidence and radiometric dates imply ore formation during sedimentation that grade into readily combustible beds, termed stone coals, which contain 10 to 15 percent organic carbon. Studies 427 fluid inclusions indicate extreme variation hydrothermal brine salinities contained Proterozoic dolostones underlying zone Hunan Guizhou. Variations...
Near normal-incidence relative spectular reflectance was measured throughout the 0.2–32.8-μm wavelength region for three cut and polished samples of Bethany Falls limestone. Water, which complex refractive index is well known, standard. Although visual appearances were quite different, spectra nearly identical. The averaged to obtain a composite spectrum. Kramers-Kronig analysis spectrum then provided spectral values A classical Lorentz dispersion also made spectrum, resulting parameters...
A multimedia fate model with spatially resolved air and soil phases was developed evaluated. The used for calculation of phenanthrene concentrations in air, water, soil, sediment Tianjin area transport fluxes between the adjacent bulk under steady-state assumption. Both were divided into 3113 individual compartments 4 km2 each to assess spatial variation fluxes. Independently measured validation. validated using a set 188 surface samples collected from area. Most data either or validation...
A level III fugacity model was applied to characterize the fate of gamma-HCH in Tianjin, China, before 1990s when contamination reached its maximum at steady state. Geometric means were used as inputs. The concentrations air, surface water, soil, sediment, crops, and fish well transfer fluxes across interface between compartments derived under assumption calculated validated by independent data collected from literature. There generally good agreement estimated observed concentrations,...
Thorium-232-lead-208 and uranium-238-lead-206 radiometric ages for ore-stage calcite show that Mississippi Valley-type (MVT) ore deposits can form in distinct tectonic settings. An age of 251 ± 11 million years the Jumbo Mine Kansas, United States, is agreement with other MVT midcontinent North America. The similarity these supports concept they formed response to fluid flow during late Paleozoic Alleghenian-Ouachita orogeny. 351 15 Twelve Mile Bore Bloodwood-Kapok Australia indicates ores...
A new phase composed mainly of Mo, S, and C referred to herein as MoSC occurs widely in organic-rich, metalliferous Cambrian black shales south China. MoSC, which has previously been jordisite, studied by scanning electron microscopy (SEM), microprobe analysis (EMPA), transmission (TEM), powder X-ray diffraction, (XRD), extended absorption fine structure (EXAFS), catalytic activity. TEM data show have a layered structure, with packets resembling molybdenite graphite-like carbon that average...
A USEPA, procedure, ISCLT3 (Industrial Source Complex Long-Term), was applied to model the spatial distribution of polycyclic aromatic hydrocarbons (PAHs) emitted from various sources including coal, petroleum, natural gas, and biomass into atmosphere Tianjin, China. Benzo[a]pyrene equivalent concentrations (BaPeq) were calculated for risk assessment. Model results provisionally validated profiles based on observed data at two monitoring stations. The dominant emission in area domestic coal...
Research Article| February 01, 1991 Contrasting depositional models for Pennsylvanian black shale discerned from molybdenum abundances Raymond M. Coveney, Jr.; Jr. 1Department of Geosciences, University Missouri, Kansas City, Missouri 64110-2499 Search other works by this author on: GSW Google Scholar W. Lynn Watney; Watney 2Kansas Geological Survey, Kansas, Lawrence, 66046-2598 Christopher G. Maples Geology (1991) 19 (2): 147–150....
In this study, we have evaluated the extent to which organic matter contents in soils influence accumulation of PAHs by roots wheat plants and developed a rapid chemical method for determining bioavailability PAH. Four polycyclic aromatic hydrocarbons (PAHs), naphthalene, acenaphthylene, fluorene, phenanthrene, were added natural soil samples with different amounts matterfor pot experiments evaluate apparent (Triticum aestivum L.). The extractabilities tested sequential extraction scheme...