Browsing Earth and Environmental Sciences by Type "Master Thesis"
Now showing items 21-40 of 256
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A ca. 273-261 Ma multi-component arc pluton in the southern area of the Beishan Orogenic Collage, NW China: a geochronological, geochemical, and petrogenetic analysis
(University of Waterloo, 2022-09-29)Along the southern edge of the Central Asian Orogenic Belt lies the Beishan Orogenic Collage, bridging the Tianshan Orogen (west) to the Mongolia-Xing’anling Orogen (east). The Beishan Orogenic Collage is thought to represent ... -
A Characterization of Bromine and Chlorine Stable Isotopes in the Sand Hills Region of Nebraska, USA
(University of Waterloo, 2015-09-21)Saline lakes and salt flats are capable of releasing a significant flux of reactive bromine into the atmosphere, a compound which is 45-70 times more efficient at ozone destruction than chlorine (Eggenkamp, 2014; Risacher ... -
Characterization of High-PGE Low-Sulphur Mineralization at the Marathon PGE-Cu Deposit, Ontario
(University of Waterloo, 2013-03-13)The Marathon PGM-Cu deposit is hosted by the Coldwell alkaline complex, which consists predominantly of gabbro and syenite and was emplaced at 1108 Ma as part of the Mid-Continent Rift System. Mineralization at the Marathon ... -
Characterizing and Modelling Tailings Hydrogeochemistry Under a Composite Cover at the Abandoned Kam Kotia Mine, ON
(University of Waterloo, 2023-01-09)A principal environmental concern associated with mining is the weathering of mine waste in the presence of oxygen and water that generates acid mine drainage (AMD) concentrated in toxic elements. Installation of composite ... -
Characterizing Aspects of Groundwater Flow in Discontinuous Permafrost Terrain, Within the Central Mackenzie Valley, NWT
(University of Waterloo, 2021-05-26)With recent developments in oil and gas exploration technologies that have opened regions of Canada’s northern territories and the threat of climate change, uncertainties around how these factors may impact the environment ... -
Characterizing Chromium Isotope Fractionation During Reduction of Cr(VI): Batch and Column Experiments
(University of Waterloo, 2012-02-22)Chromium (VI) is a pervasive groundwater contaminant that poses a considerable threat to human health. Remediation techniques have focused on the reduction of the highly mobile Cr(VI) to the sparingly soluble, and less ... -
Characterizing low-sulfide instrumented waste-rock piles: image grain-size analysis and wind-induced gas transport
(University of Waterloo, 2011-01-18)This study is part of the Diavik Waste-Rock Pile Project taking place at the Diavik Diamond Mine in the Northwest Territories, Canada. The project involves the construction of three 15m-scale low sulfide test waste-rock ... -
Chlorine and Bromine Isotopic Analyses of Groundwaters and Porewaters from the Bruce Nuclear Site
(University of Waterloo, 2017-10-23)This study reports chlorine (δ37Cl) and bromine (δ81Br) isotopic values for groundwaters and pore fluids from early Paleozoic (Cambrian to Devonian) sedimentary rocks at the Bruce Nuclear Site near Kincardine, Ontario, ... -
Chlorophyll-a Mapping in a Large Lake Using Remote Sensing Imagery: A Case Study of Western Lake Ontario
(University of Waterloo, 2024-04-23)Western Lake Ontario (WLO) and Hamilton Harbour (HH) experience significant eutrophication challenges. Despite an overall decrease in the limiting nutrient phosphorus (P) inputs, recurrent nuisance (Cladophora) and ... -
Comparing thallium isotopes to paleosalinity and Mo-U isotope paleoredox proxies: A case study of the Upper Devonian Kettle Point Formation, Ontario
(University of Waterloo, 2023-06-22)Black shale formations are utilised to reconstruct ancient global ocean redox conditions by analyzing and inferring their geochemical and isotopic compositions. However, the accuracy of these reconstructions can decrease ... -
Comparison of Hydraulic Tomography Survey with and without Cut-off Walls at the Narashino Site, Japan
(University of Waterloo, 2021-01-12)This study investigates the performance of several different conceptualizations of inverse modeling including the effective parameter, geological zonation and geostatistical inversion approaches, on characterizing the ... -
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, ... -
A Comprehensive Sensitivity Analysis of the Weather Research and Forecasting Modeling System over Southern Ontario, Canada
(University of Waterloo, 2017-05-16)Every year weather events cause billions of dollars property damage and take many lives globally. Preventing as much damage as possible is crucial, and one way to help is through having the most accurate advance warning ... -
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 ... -
The Control of Fe and pH on the Photodegradation and Characterization of Dissolved Organic Matter in Small, Oligotrophic Canadian Shield Freshwaters
(University of Waterloo, 2017-05-19)Carbon is an essential building block for life and is involved in many biotic and abiotic processes. Thus it is imperative to have a comprehensive understanding of carbon cycling. Recent research has established that inland ... -
Copper Isotope Fractionation and the Evolution of Sulfide Alteration in a Sudbury Tailings Impoundment
(University of Waterloo, 2016-10-18)The fate of dissolved Cu in the Copper Cliff Central Tailings Impoundment was investigated to better understand the extent of Cu stable isotope fractionation accompanying the oxidation of Cu-bearing sulfide minerals and ... -
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 ... -
Deformation History of the Black Bay Fault, Northwest Territories, Canada
(University of Waterloo, 2018-09-10)The Black Bay Fault is a major Paleoproterozoic, NE-SW-trending, crustal-scale feature that separates different tectonometamorphic domains of the southern Rae craton in the Canadian Shield. This structure extends from the ... -
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 ...