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A new approach to understanding the origin of Fuerteventura, Canary Islands (Spain): A U-Pb, Hf and O isotope and minor- and trace- element detrital zircon study
DownloadSpring 2019
The Canarian Archipelago contains seven islands proximal to the African continent and High Atlas Mountains. The origin and magmatic evolution of these islands has been a contentious issue for several decades. This particular archipelago is unique because three of the islands (Fuerteventura, La...
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Geochronology and bulk sediment geochemistry of the Late Cretaceous maar lake sedimentary fill of the Wombat kimberlite pipe, subarctic Canada
DownloadSpring 2020
The Wombat pipe (64.918° N, 110.447° W) is a diamondiferous kimberlite in the Lac de Gras kimberlite field of Northwest Territories, Canada. Two drill cores, CH93-29 and 00-05, intersect the Wombat crater facies and include 195 m of well preserved, undisturbed lake sediment fill. Bulk sediment...
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Fall 2021
Reconnaissance regional mapping as part of the Geological Survey of Canada’s Geomapping for Energy and Minerals (GEM-2) project documented three voluminous, massive to weakly foliated felsic plutons in Boothia Peninsula, Nunavut. Uranium-lead zircon and monazite geochronology reveals this...
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Spring 2020
The Pikoo kimberlites of east-central Saskatchewan are a relatively recent discovery, comprising at least ten discreet bodies thought to erupt through the Sask Craton, a small Archean microcontinent enclosed within the Paleoproterozoic Trans-Hudson Orogen. Since the Sask Craton also plays host...
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Refining the geochronology and paleoenvironmental significance of key tephra beds in Yukon and Alaska
DownloadFall 2024
Developing precise analytical tools for dating young volcanic deposits (under 3 million years old) is essential for constructing Quaternary chronological frameworks. This dissertation presents an improved method for determining eruption ages of volcanic ash (tephra) deposits in the ice-age...