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Spring 2020

Lypaczewski, Philip

The mining industry generates vast amounts of geological material and diamond drill core throughout the life-cycle of any exploration or mining project. This material needs to be examined, logged, and assayed where appropriate. Currently this is generally performed through visual observations by...

Fall 2020

Norris, Sophie

This thesis utilises geomorphic mapping, cosmogenic nuclide dating, and numerical modelling, to reconstruct the timing and deglacial dynamics of the southwestern Laurentide Ice Sheet (SWLIS). A paucity of geomorphic data within the interior portions of the SWLIS is addressed through the mapping...

Spring 2020

Siva-Jothy, William

Gahcho Kué is a diamond mine in the Northwest Territories of Canada that opened in 2016. This is the first study into the morphology, N systematics, and stable isotope (C and N) composition of the Gahcho Kué diamonds, and the mineral chemistry of the associated inclusions. The resulting data are...

Fall 2020

Zhou, Haolin

Organic carbon-rich mudstones, or ‘black shales’, record highly anomalous perturbations of local or earth systems at critical times in earth history. Paleoenvironmental parameters, including primary productivity, redox conditions, and sedimentation rate, have been widely recognized as the...

Fall 2020

Staniszewska, Katarzyna

Anthropogenic climate warming is degrading the cryosphere. Retreating alpine glaciers and thawing permafrost pose the risk of releasing previously sequestered legacy contaminants to downstream environments, with potential negative consequences for downstream aquatic ecosystems. In this thesis I...

Spring 2020

Vaisblat, Noga

The Lower Triassic Montney Formation is a world class hydrocarbons reservoir in Alberta and British Columbia. Although commonly described as a shale, it is a siltstone over most of its subcrop, for which predictive models for reservoir quality properties such as porosity and permeability,...

Spring 2020

Barclay, Kristina

Interactions between predators and prey play an important role in structuring their communities and shaping evolution. However, human-induced climate change has the potential to influence both predators and prey and disrupt their interactions. The fossil record provides an enormous resource to...

Fall 2020

Li, Yuhao

Banded iron formations (BIF) are iron-rich (~20-40% Fe), siliceous (~40-50% SiO2), and organic-lean (<0.5 wt.%) sedimentary deposits that precipitated widely during the late Archean (2.7-2.5 Ga) and Paleoproterozoic (2.5-1.8 Ga). As cyanobacteria evolved, the reaction between dissolved Fe(II) and...

Spring 2020

Hao, Weiduo

Clay minerals are ubiquitous at the Earth’s surface and they impart a significant influence on numerous geochemical cycles due to their high surface reactivity. Aqueous pH and ionic strength (hereafter IS) are two major factors that affect clay surface reactivity and subsequently govern trace...

Spring 2020

Castro, Saulo M.

The main goal of this thesis is to contribute to the growing body of scientific work by exploring mechanisms of ecosystem productivity through the integration of remote sensing and micrometeorological data. This was done throughout by (i) identifying the environmental mechanisms affecting...