8 dossier(s) trouvé(s) portant l’étiquette "petrology" (les projets pluriannuels sont regroupés):
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Petrogenesis of the Acasta Gneiss Complex: Ancient Rocks Revisited
chercheur principal: Reimink, Jesse R
Année(s) de permis: 2014 2013 2012 2011
Résumé: The present study aims to obtain information with the following objectives: 1) further describe, sample, and document field relationships and structures present in areas that were sampled and found to be significantly old (>3.8 billion years); 2) explore and sample other units which based on field relationships and mineralogy are likely to be as old or older than previously documented samples; and...


Petrology and geochemistry of the late Archaean banded iron formation and associated turbidites, western Slave Craton: constraints on palaeoenvironment
chercheur principal: Haugaard, Rasmus RH
Année(s) de permis: 2013 2012
Résumé: The recent discovery of new occurrences of 2.9 - 2.6 Ga old banded iron formations in the NWT have opened an exceptional opportunity to study ocean chemistry directly preceding the Great Oxidation Event (GOE). In this regard, the research group has been engaged with the Northwest Territories Geoscience Office (NTGO) to undertake field and laboratory studies of Achaean Banded Iron Formation (BIF) f...


Investigating the Influence of Archean Seawater Composition on the Evolution and Diversity of Microbial Metallo-Enzyme Evolution Through the Chemistry of Archean Banded Iron Formation
chercheur principal: Mloszewski, Aleksandra M
Année(s) de permis: 2011 2010
Résumé: The recent discovery of new occurrences of Neoarchan (2.8 Ga to 2.6 Ga) banded iron formations (BIF) in the Northwest Western Territories have opened an exceptional opportunity to study ocean chemistry. In this regard, the research group has been engaged by the Northwest Territories Geoscience Office (NTGO) to undertake field and laboratory studies of Archean and Proterozoic Banded Iron Formation ...


Petrogenesis of the Blachford Lake Intrusive Suite
chercheur principal: Mumford, Thomas R.
Année(s) de permis: 2011 2010
Résumé: With increasing activity at the Nechalacho Rare Earth Element Deposit a better geological understanding of the setting of the mineral deposit is required. This study is fundamentally concerned with how and why the deposit exists. This is achieved by studying the entire Blachford Lake intrusive suite (>300 km2), the igneous system which generated the deposit. From this, a petrogenetic framework wil...


Geochemical and Mineralogical Controls on Metal Dispersal Downstream of Mineralization in the Mackenzie Mountains, Canada
chercheur principal: Skeries, Kristina A
Année(s) de permis: 2011
Résumé: The objective of this research project is to understand how metals might be weathering from rocks, and to understand where they end up and in which chemical form (the speciation). The importance is to differentiate between the metal species that weather from the rocks, the species by which they are transported, and finally, the species by which they are deposited again, if they are in fact deposit...


Structure and Stratifigraphy of the Indin Lake Greenstone Belt (detailed bedrock mapping)
chercheur principal: Pehrsson, Sally J
Année(s) de permis: 1996 1995 1994
Résumé: This will be the final summer of work for this phase of mapping in Indin Lake. The mapping data (including structural, petrological, geochemical &geochronological) will enable a detailed geological history of the project area to be constructed. This will include timing of major events, including volcanism, plutonism and sedimentation, and subsequent deformation. The results will be presented in...


Geology and Mineral Potential of the Camsell Lake Area
chercheur principal: Johnstone, Robert
Année(s) de permis: 1994 1993 1992 1991
Résumé: The researcher and his team will traverse throughout the map area examining bedrock exposures and sampling. Observations may help construct a geological map showing lithology, structure and mineral occurences. Rock samples will be collected for geochemical and petrological analysis. The results of the survey will be presented in the form of poster displays, talks, reports and a map for distribu...


Tectonomagmatic Evolution of the Sverdrup Basin, Canadian Arctic Arhcipelago
chercheur principal: Muecke, Gunter K.
Année(s) de permis: 1992 1990 1989
Résumé: The researcher and his team will define the connection between the opening of the Arctic Ocean during the Cretaceous period, development of a continental margin, major crustal extension and rapid subsidence in the Sverdrup Basin, and voluminous basaltic magmatism. To achieve this, they will be investigating the field relations, petrology, mineralogy, geochemistry, and geochronology of magmatic ro...


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