EON-ROSE (Earth-System Observing Network - Réseau d’Observation du Système terrestrE) is a new initiative for a pan-Canadian research collaboration to holistically examine Earth systems from the ionosphere into the core. The Canadian Cordillera Array (CC Array) is the pilot phase, and will extend across the Cordillera from the Beaufort Sea to the U.S. border. The vision for EON-ROSE is to install a network of telemetered observatories to monitor solid Earth, environmental and atmospheric processes. EON-ROSE is an inclusive, combined effort of Canadian universities, federal, provincial and territorial government agencies, industry, and international collaborators. Brainstorming sessions and several workshops have been held since May 2016. The first station will be installed at Kluane Lake Research Station in southwestern Yukon during the summer of 2018. The purpose of this report is to provide a framework for continued discussion and development.RÉSUMÉEON-ROSE (Earth-System Observing Network - Réseau d’Observation du Système terrestrE) est une nouvelle initiative de collaboration de recherche pancanadienne visant à étudier de manière holistique les systèmes terrestres, depuis l’ionosphère jusqu’au noyau. Le Réseau canadien de la cordillère (CC Array) en est la phase pilote, laquelle couvrira toute la Cordillère, de la mer de Beaufort jusqu’à la frontière étasunienne. L’objectif d’EON-ROSE est d’installer un réseau d’observatoires télémétriques pour suivre en continu les processusterrestres, environnementaux et atmosphériques. EON-ROSE est un effort combiné et inclusif des universités canadiennes, des organismes gouvernementaux fédéraux, provinciaux et territoriaux, de l’industrie et de collaborateurs internationaux. Des séances de remue-méninges et plusieurs ateliers ont été tenus depuis mai 2016. La première station sera installée à la station de recherche du lac Kluane, dans le sud-ouest du Yukon, au cours de l’été 2018. Le but du présent rapport est de fournir un cadre de discussion et de développement continu.
During the past decade, there have been many advances in the domain of metamorphic geology that have rendered previous P-T results questionable. For example, Spear (1991) demonstrated that the widely used gamet-biotite Fe-Mg ion-exchange thermometer can underestimate temperatures by as much as 200°C due to retrograde diffusion between the garnet and biotite. Holdaway and Mukhopadhyay (1993) noted that exchange geothermometers are easily reset at granulite-grade metamorphism. Thus, all geothermobarometers would record lower diffasion-based post-peak metamorphic pressures and temperatures, particularly those such as the biotite-garnet Fe-Mg exchange geothermometer which are expecially sensitive to retrograde cation exchange. One objective of this thesis is to quantify this effect of resetting as a function of mineral grain size.The field area is located 100 km north of the Ottawa River between Ottawa and Montreal in the Central Metasedimentary Belt (CMB) of the Grenville Province. It contains the largest granulite terrane within the CMB. The western two thirds of the field area is dominated by the Bondy Gneiss Complex (BGC), a granulitic dome, consisting principally of orthogneisses with quartzites, a tonalitic pluton and metapelites. The northsouth trending Nominingue-Chénévilie Deformation Zone (NCDZ), cuts through the structural trend of the BGC and dominates the eastern third of the field area.The morphology and textures of migmatites in the area vary greatly from layers of leucosomes with granitic composition flanked by garnet-rich layers, and biotite-rich melanosomes through thin (1mm) wispy-discontinuous leucosomes and felsic moats surrounding garnets to continuous leucosomes greater than lcm thick. Many thin sections contain embayed K-feldspar or plagioclase grains with inclusions of biotite mat formed from a melt-producing reaction. Biotite is present throughout the field area, which limits the peak temperature to below 980°C. One outcrop contains garnets with spinel inclusions, suggesting the reaction Als + Grt = Spl + Qtz, which implies peak temperatures above 850°C. The Krn-Opx-Tur-Crd-Pl assemblage occurs in the BGC implying the komerupine-forming reaction Tur + Opx + Crd = Km + PL It has been proposed that the Bondy Gneiss Complex was hydrothermally altered. The plagioclase composition from the BGC are unusually diverse (between Anjs and An88), possibly due to this hydrothermal alteration. Cordierite, orthopyroxene, and spinel were only observed in the NCDZ. The spinel analyses were similar to literature values from the reconstructed Grenville Orogen at 0.8 Ga. Calcite was only observed in metapelites from the NCDZ, possibly due to fluid flow along this deformation zone during deformation. AFM projections also demonstrate this diversity between these two tectonostratigraphic domains. Garnets in the BGC are up to 20% more Mg-rich than those in the NCDZ, and the BGC biotites are also up to 30% more Mg-rich than the NCDZ biotites. VIGarnets were the only mineral found to exhibit regular zonin...
The Scholarship of Teaching and Learning is uniquely poised to address one of the greatest challenges in the “post-truth” era through catalyzing conversations that promote the effective development of critical thinking skills necessary for identifying and avoiding conspiracy theories. An interdisciplinary team of scientists, science communicators, public health nurses and educators has designed case studies, modules and activities that are curriculum-based for use in kindergarten to grade 12 classes to promote vaccine safety. Two serendipitous outcomes from this Building Resistance to Vaccine Misinformation program included: i) significant learning experiences for everyone in our team about the other disciplines, and ii) that the research assistants articulated their own emerging professional identities. Once this program receives ethics approval, we will work with education programs to beta-test the case studies, modules and activities then assess the impacts of this program through pre and post experience questionnaires and journaling.
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