Search
Skip to Search Results- 3Bussweiler, Yannick
- 2Pearson, Graham
- 2Stachel, Thomas
- 1Brey, Gerhard Peter
- 1Czas, Janina
- 1Davies, Joshua
-
Spring 2022
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...
-
Behaviour of Ore-Forming Elements in the Sub-Continental Lithospheric Mantle Below the Slave Craton
DownloadFall 2020
The transport and depositional controls of ore-forming elements such as Ag, Au, Bi, Cu, Mo, Pb, Pt, and Zn has been extensively studied in crustal environments, but the behaviour of these elements within Earth’s mantle require further study. This thesis presents new petrographic and geochemical...
-
Probing the Mantle Cargo of Kimberlites – A Geochemical Investigation of Different Mineral Components and Evaluation of their Potential as Petrogenetic and Exploration Tools
DownloadSpring 2017
This thesis applies microanalytical tools to the geochemical investigation of different mineral components in the volcanic rock kimberlite. This work significantly advances the application of one of these tools, deep UV (193 nm) laser ablation inductively coupled plasma mass spectrometry...
-
Spring 2010
187Re-187Os analysis of magnetite and other oxide minerals from various well dated geological settings (kimberlites, lamprophyres, Manicouagan impact melt rock, Great Bear magmatic zone iron ore deposits and Laramie Anorthosite complex) worldwide have been used to investigate the potential for...
-
Spring 2016
Rockbursts have been a hazard for mining operations since underground mining first came into practice; the consequences they present to mining personnel and machinery can be fatal and costly. Underground mining in Northern Canada has presented the opportunity to study the bursting properties of...
-
The aluminum-in-olivine thermometer for mantle peridotites — Experimental versus empirical calibration and potential applications
Download2017-02-01
E. Jackson, Simon E., Bussweiler, Yannick, Hardman, Matthew, Stern, Richard A., Brey, Gerhard Peter, Kjarsgaard, B.A., Pearson, Graham, Stachel, Thomas
This study provides an experimental calibration of the empirical Al-in-olivine thermometer for mantle peridotites proposed by De Hoog et al. (2010). We report Al concentrations measured by secondary ion mass spectrometry (SIMS) in olivines produced in the original high-pressure, high-temperature,...
-
Spring 2016
The composition of primary kimberlitic melts has been the subject of much debate because of the heterogeneous nature of kimberlites, their ubiquitous modification by mantle and crustal contamination, their high susceptibility to alteration during and after emplacement, and the fact that the melts...
-
The evolution of calcite-bearing kimberlites by melt-rock reaction: evidence from polymineralic inclusions within clinopyroxene and garnet megacrysts from Lac de Gras kimberlites, Canada
Download2016-07-01
Luth, R. W., Stone, Rebecca, Menzies, Andrew, Bussweiler, Yannick, Pearson, Graham, Stachel, Thomas, Kjarsgaard, B. A.
Megacrystic (>1 cm) clinopyroxene (Cr-diopside) and garnet (Cr-pyrope) xenocrysts within kimberlites from Lac de Gras (Northwest Territories, Canada) contain fully crystallized melt inclusions. These ‘polymineralic inclusions’ have previously been interpreted to form by necking down of melts at...
-
The petrography and mineral chemistry of melt-intruded mantle xenoliths from the Chidliak kimberlite field, Baffin Island, Canada
DownloadFall 2021
The nature of kimberlitic melts at mantle depths and their interaction with mantle wall-rocks is poorly constrained. This is due to the scarcity of mantle xenoliths and xenocrysts that have preserved this interaction without disaggregating during their transport to Earth’s surface. This thesis...