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Skip to Search Results- 2Hnatyshin, Danny
- 1Belosevic, Michael B.K.
- 1Blanchette-Arnold, Alexis
- 1Bowman, Sam
- 1Creaser, Robert
- 1Davies, Joshua
- 2Chacko, Thomas (Earth and Atmospheric Sciences)
- 2Creaser, Robert (Earth and Atmospheric Sciences)
- 2Heaman, Larry (Earth and Atmospheric Sciences)
- 2Herd, Christopher (Earth and Atmospheric Sciences)
- 2Pearson, Graham (Earth and Atmospheric Sciences)
- 1Chacko, Thomas (Earth & Atmospheric Sciences)
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Geochronological and geochemical constraints on the origin of the Paleoproterozoic Union Island Group mafic magmatism, East Arm Basin, N.W.T.
DownloadFall 2017
The Slave craton underwent widespread extension during the Paleoproterozoic. In the southern Slave craton, this extension is manifest in multiple periods of continental mafic magmatism emplaced between 2.3–2.2 Ga and prior to 2.0–1.9 Ga calc-alkaline magmatism of the Taltson and Thelon zones...
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Geochronology and Trace Element Characteristics of Pyrite from Selected Carbonate Hosted Pb-Zn Ore Deposits
DownloadFall 2012
Carbonate-hosted ore deposits, such as Mississippi Valley-type (MVT), and Irish-type deposits, are a major class of Pb-Zn ores. Due to the mineralogy of these deposits, numerical constraints on the timing of mineralization are few. This thesis investigates pyrite Re-Os geochronology for dating...
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Geology, geochronology, thermobarometry, and tectonic evolution of the Queen Maud block, Churchill craton, Nunavut, Canada
DownloadSpring 2012
The Queen Maud block is divided into two crustal belts. The western Perry River belt is dominated by Mesoarchean to Neoarchean granitic gneisses and supracrustal rocks; it was incorporated into the Rae domain by at least 2.46 Ga. The eastern Paalliq belt is dominated by the 2.52-2.45 Ga Queen...
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Implications of in situ zircon U-Pb, Lu-Hf, oxygen-isotope, and trace element geochemistry on the petrogenetic history of the northern Hogem batholith in the Quesnel terrane, north-central British Columbia, Canadian Cordillera
DownloadSpring 2022
The Cordilleran orogen of western Canada is a type example of accretionary tectonism and thus an ideal location to study continental growth by oceanic and continental arc magmatism and terrane accretion. Cordilleran Intermontane terranes are interpreted as accreted oceanic arcs that contributed...
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Spring 2016
This contribution presents the results of a new mapping and geochemical investigation of well-preserved rock units in the Acasta Gneiss Complex (AGC), Canada, and provides additional support for a broadly mafic Hadean Earth, in which the first evolved crust formation took place in a geodynamic...
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Petrogenesis of the Moose Lake Area of the Acasta Gneiss Complex, Slave Craton, Northwest Territories, Canada
DownloadSpring 2021
The Acasta Gneiss Complex (AGC) is a late Hadean to early Archean terrane in northwestern Canada known to contain the oldest evolved rocks on Earth. However, only a small portion of the AGC has been studied in detail. This study aims to explore one of the poorly explored portions of the AGC, the...
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Fall 2023
Graphite-forming events occurred throughout Earth history and extend up to solar and pre-solar contexts. However, a comprehensive understanding of the timeline of these events has been hindered by a lack of chronological information for graphite. Here we explore the geochronological potential of...
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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...
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Stratigraphy, paleogeography and tectonic evolution of early Paleozoic to Triassic pericratonic strata in the northern Kootenay Arc, southeastern Canadian Cordillera, British Columbia
DownloadSpring 2013
The northern Kootenay Arc in southeastern British Columbia hosts a near-continuous succession of Cambrian to Permian strata that were deposited in overlapping marginal basins outboard of the Canadian Cordilleran miogeocline. The basinal strata of the Late Cambrian and younger Lardeau Group are...
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The application of detrital zircon grains from Pleistocene eskers for reconnaissance bedrock mapping in the Acasta Gneiss Complex
DownloadFall 2019
The Acasta Gneiss Complex (AGC) is a ~2400 km2 Hadean-Mesoarchean terrane that contains the oldest known zircon-bearing rocks on Earth. Despite its importance for early Earth geology, only a small fraction (~50 km2) has been mapped in detail. To determine the lateral extent of ancient rocks and...