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Spring 2022

Kepezhinskas, Nikita

This work presents new petrography, mineral major and trace element chemistry, whole rock major and trace element chemistry, whole rock Sr-Nd-Hf isotope composition, and phlogopite Rb-Sr isotope geochronology for the Mel kimberlite, Nunavut and Dharma kimberlite, Northwest Territories. This data...

Fall 2022

Alejandro, Alvarez

In order to understand permafrost and paleoenvironmental conditions in the Mackenzie Delta Region, permafrost cores were collected in the winter of 2017, near the newly developed Inuvik-Tuktoyaktuk Highway (ITH), NWT, by the NWT Geological Survey, NWT Department of Infrastructure, the University...

Fall 2022

Campos Valverde, Rebeca

Northern hemisphere evergreen forests assimilate a significant fraction of global atmospheric CO2. Conifers undergo winter-downregulated photosynthetic activity and spring-onset photosynthetic activation. Currently, increased temperatures are leading to shifts in photosynthetic phenology (early...

Fall 2022

Poulette, Spencer, L

Saline aqueous fluids play numerous key roles in many geologic processes, but how fluids flow and interact with rocks depends on their physical and chemical properties, which in turn depend on the types, concentrations, and speciation of solutes. Raman spectroscopy is a powerful tool to identify...

Fall 2022

Fu, Chuanshuai

The thermohaline intrusion of the warm and saline Atlantic Water (AW) into the Arctic Ocean, referred to as “Arctic Atlantification”, has significant implications and feedback on the {thermo}dynamics of the Arctic Ocean. The AW enters the Arctic Ocean through two gateways: Fram Strait and the...

Fall 2022

Jin, Rong

Purpose: To better understand the behaviors of sediment-associated metals (Cu, Ni, Cd, Mn, Cr, Pb, Fe, Sr, Mo, and Co), an evaluation of physicochemical parameters and metal speciation on suspended and bedload sediment collected from the North Saskatchewan River was conducted in 2018. Sampling...

Fall 2022

Hinde, Jason

The connection between metasomatism - the change in chemical composition of a rock via interaction with a fluid or melt - and the formation of metalliferous ore deposits in the Earth’s crust is well established. Similarly, it is now accepted that the Earth’s lithospheric mantle has experienced...

Fall 2022

Tunney, Libby Donna

Meteorites are the most primitive materials in the solar system and can provide important information about the early earth, planetary processes, and possibly yield insights to the building blocks of life. All meteoritic astromaterials are exposed to both organic compound and microbial...

Spring 2022

Feng, Wujun

Previously acquired biomarker analyses of oil samples and Rock-Eval analyses of cores and cutting samples have been integrated with new Rock-Eval analyses to determine the source rock potential of Montney Formation. Furthermore, the geochemical signature of Montney organic matter is used to...

Spring 2022

Selles, Claudia M.

Predation is an important process that helps to shape community structure. The study of predation in the fossil record has often used repair scars – traces of failed predatory attacks left on prey individuals – to identify differences in predation pressure across space, time, and taxa. However,...