| Summary: | The Thelon Tectonic Zone is a major structural, metamorphic and lithological feature of the Precambrian Shield in the Northwest Territories. Situated within this Zone is a 30 square kilometre plutonic body. Rubidium- Strontium whole rock geochronology yields an age range of 1650 - 2200 Ma for the emplacement of this pluton. Field and petrographic evidence indicates that the pluton has suffered post-emplacement deformation, representative of a late Proterozoic metamorphic event. Major and trace element geochemistry suggests that this high Ca, ferrogranodiorite-tonalite intrusive body is associated with a subduction-related, continental margin tectonic environment. Thesis Bachelor of Science (BSc)
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