Browsing Science (Faculty of) by Subject "Earth Sciences"
Now showing items 21-40 of 187
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Comparison of the ground penetrating radar characterization of winter processes with the results of hydrological simulations
(University of Waterloo, 2014-11-26)Ground penetrating radar (GPR) is a useful tool to characterize and investigate a variety of cold region processes, including but not limited to permafrost development and glacial morphology. Despite a comprehensive coverage, ... -
Constraining sources of atmospheric trace constituents with Lagrangian particle dispersion modeling
(University of Waterloo, 2013-06-19)This manuscript based thesis examines and advances methods for constraining sources of atmospheric trace constituents with a Lagrangian particle dispersion model. The method of Bayesian inversion is demonstrated, and a new ... -
Coupling of two natural complex systems: earthquake-triggered landslides
(University of Waterloo, 2012-04-30)This thesis contains two main parts. The first part presents a database compiling 137 landslide-triggering earthquakes (LTEs) worldwide, with magnitudes greater than the minimum observed threshold for causing landslides ... -
Degradation of Chlorinated Butenes and Butadienes by Granular Iron
(University of Waterloo, 2007-09-18)Sites where 2-chlorobutadiene-1,3 (chloroprene) and 2,3-dichlorobutadiene-1,3 (DCBD) are synthesized for use in chlorobutyl rubber have the potential to release a mixture of at least five chlorinated butenes and butadienes ... -
Delineating Base Flow Contribution Areas for Streams: A Model Comparison
(University of Waterloo, 2012-06-21)This study extends the methodology for the delineation of capture zones to base flow contribution areas for stream reaches under the assumption of constant average annual base flow in the stream. The methodology is applied ... -
Demonstration of Nitrate-Enhanced In Situ Bioremediation at a Petroleum Hydrocarbon Contaminated Site
(University of Waterloo, 2011-10-28)Alternative strategies involving in situ remediation technologies have been developed to assist with property clean up, however, cost-effectiveness and discrepancies in success rates and timeliness continue. The objective ... -
The Design Of An Out-Diffusion Experiment And The Use Of Geochemical Analyses For The Purpose Of Matrix Pore Fluid Extraction And Characterization: A Case Study For Radioactive Waste Disposal
(University of Waterloo, 2008-04-30)Deep crystalline rock formations of low permeability have been identified as a possible geological medium for high-level radioactive waste disposal. In order for the safe disposal of radioactive waste, a site characterization ... -
A detailed hydrologic evaluation of tile-drained macroporous soils: A field and modelling study
(University of Waterloo, 2011-03-07)The underlying objective of this research is to improve the overall understanding of how spatial and temporal variability in macroporosity and soil hydraulic properties in the shallow subsurface influence the long term ... -
Developing and refining the use of water isotope tracer in hydrology and paleohydrology
(University of Waterloo, 2008-08-27)This thesis investigates stable isotope signals (i.e. δ18O and δ2H) in various information carriers such as lake water and lacustrine sediments, aiming to develop and refine the use of isotope tracers in hydrology and ... -
Development of a New Technique to Study the Kinetics of Hydroxyl Radical Uptake on Micron-Sized Organic Aerosols
(University of Waterloo, 2010-04-28)The importance of the hydroxyl radical (OH) to tropospheric chemistry is well known. The radicals’ ability to react with most atmospheric trace gases allows it to act as the main removal mechanism for these gases. Due to ... -
Development of a Parallel Computational Framework to Solve Flow and Transport in Integrated Surface-Subsurface Hydrologic Systems
(University of Waterloo, 2012-04-11)HydroGeoSphere (HGS) is a 3D control-volume finite element hydrologic model describing fully-integrated surface-subsurface water flow and solute and thermal energy transport. Because the model solves tightly-coupled ... -
The Developmental History of a Cupriferous Swamp in Southeastern New Brunswick, Canada
(University of Waterloo, 2010-09-30)Cupriferous swamps are characterized by high concentrations of copper in the soil and water. The Aboushagan swamp, situated 8km northwest of Sackville, New Brunswick is a unique metalliferous wetland where copper is ... -
A Device for Measuring Groundwater Velocity in the Capillary Fringe
(University of Waterloo, 2007-05-22)Groundwater flow in the capillary fringe is rarely measured during hydrogeological studies because of the difficulties associated with investigating this region. Previous research using a point velocity probe (PVP) to ... -
Diagenesis of middle Ordovician rocks from the Lake Simcoe area, south-central Ontario
(University of Waterloo, 2011-09-30)Middle Ordovician carbonates in the Lake Simcoe area, south-central Ontario were examined to determine if: (1) The δ18O values of early-stage calcite cement in hardgrounds are useful proxies for Ordovician seawater δ18O ... -
Diavik Waste Rock Project: Geochemical and mineralogical investigations of waste-rock weathering
(University of Waterloo, 2012-12-05)The oxidation of sulfide minerals in mine waste rock has the potential to generate acidity and contribute sulfate, metals and other trace constituents to drainage. The rate and extent to which this process occurs are ... -
Dissolved Organic Matter in the Anthropogenically Impacted Grand River and Natural Burnt River Watersheds
(University of Waterloo, 2012-01-03)Dissolved organic carbon (DOM) is one of the largest cycled organic carbon pools on Earth and an important biogeochemical factor in aquatic systems. DOM can act as an energy source for microorganisms, alter the depth of ... -
Effect of ethanol on BTEX biodegradation in aerobic aquifer systems
(University of Waterloo, 2008-01-04)Ethanol can affect the biodegradation of gasoline hydrocarbons in groundwater. High concentrations of ethanol can be toxic to subsurface microorganisms that are otherwise capable of degrading hydrocarbons, such as benzene, ... -
Effect of H2 Pressure on Hydrogen Absorption and Granular Iron Corrosion Rates
(University of Waterloo, 2014-01-08)Hydrogen gas production occurs in permeable reactive iron barriers (PRBs) due to the anaerobic corrosion of granular iron. Once produced, this hydrogen gas can have detrimental physical effects on PRB performance. ... -
Effect of organic carbon substrates on denitrification rates in sediment
(University of Waterloo, 2014-01-24)Nitrate (NO3-) is a ubiquitous groundwater contaminant in agricultural and wastewater discharge areas. The prediction of microbial mediated NO3- removal in subsurface environments requires an understanding of the rates ... -
The Effect of Volatiles (H2O, Cl and CO2) on the Solubility and Partitioning of Platinum and Iridium in Fluid-Melt Systems
(University of Waterloo, 2010-09-01)Volatiles are a fundamental component of the Magmatic-Hydrothermal model of platinum group element (PGE) ore deposition for PGE deposits in layered mafic intrusions such as Bushveld and Stillwater. Volatiles have the ...