Earth and Planetary Sciences (Undergraduate)

Arctic sea ice reconstruction for the past 500 years using palaeo-based proxies: a case study of PIP25 biomarker
To deduce paleoclimatic changes attributable to variability in the sea ice, a long-term record of sea-ice is required, beyond the time period covered by direct instrumental monitoring. A recent proxy for Arctic Ocean sea-ice has been developed based on the analysis of an isomer of C25, also known as IP25 (Ice proxy with 25 carbo atoms). In addition, other phytoplankton - derive biomarkers such as brassicasterol (Phytoplankton marker - IP25 index; PIP25) are employed to confirm sea ice change deductions for the past 500 years., Presented on January 27, 2015 at I, Research: Student Research Week held at MacEwan University in Edmonton, Alberta.
Fluid inclusions of quartz-carbonate veins in the Canadian Rocky Mountains
Vein systems in crustal rocks record a variety of processes, including fluid migration and extensive mass transfer, and they preserve information about the composition, temperature, and pressure conditions that mitigate rock-fluid interaction during vein formation. This study will attempt to characterize the formational sequence and origin of fluid inclusions observed in several samples extracted from a quartz-carbonate vein system in the Canadian Rocky Mountains, and explore the role of fluid-rock interaction in the formation of these veins. Preliminary observations of thin sections taken from vein samples are detailed conjointly with petrographic images and a brief review of the formation and significance of fluid inclusions in rock-hosted vein systems., Presented on May 1, 2015 at the Undergraduate Research in Science Conference of Alberta (URSCA) held at MacEwan University in Edmonton, Alberta.
Foraminifera microfossils as a proxy for environmental conditions in the Canadian Arctic
Foraminifera are microscopically small, marine organisms with a shell which preserves easily in the geological record. Therefore, they are used as prime indicators for environmental conditions such as temperature and salinity in both past and present settings. The project presented here aims to use foraminifera as a proxy for the environments of Arctic Canada. Sediment samples from and below the seabed were obtained during an expedition onboard the CCGS Amundsen icebreaker in Aug-Sep 2016. Aside from classifying the foraminifera populations, these samples will also be used for stable isotope analyses of oxygen and carbon, allowing for greater inference of overall environmental conditions both past and present. Results of this research will also contribute to an atlas of foraminifera for Arctic Canada., Presented on April 24, 2017 at Student Research Day held at MacEwan University in Edmonton, Alberta.
Foraminifera: a tool for elucidating past and recent climate change in marine Arctic Canada
Over the past five decades, polar regions such as the Canadian Arctic Archipelago (CAA) have experienced pronounced changes associated with recent climate warming, such as sea ice decline (ACIA, 2005; IPCC, 2007). Such relatively recent and open-ended environmental shifts have motivated research regarding past climate variability to understand how polar marine environments responded to previous high-magnitude changes such as glacial to interglacial transitions. MacEwan University's RAPIDE (Researching Arctic Palaeoceanographic Indicators of Deglacial Environments) program seeks to apply multiple sedimentological, stratigraphic, and micropalaeontological approaches to elucidate the timing and style of marine-based deglaciation and subsequent oceanographic evolution through the CAA., Presented on December 11, 2017 at the International Arctic Change Conference held at Québec City Convention Centre, Québec.