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Geology, geochronology, thermobarometry, and tectonic evolution of the Queen Maud block, Churchill craton, Nunavut, Canada Open Access


Other title
Churchill craton
Queen Maud block
Type of item
Degree grantor
University of Alberta
Author or creator
Tersmette, Daniel B.
Supervisor and department
Chacko, Thomas (Earth and Atmospheric Sciences)
Examining committee member and department
Currie, Claire (Physics)
Heaman, Larry (Earth and Atmospheric Sciences)
Department of Earth and Atmospheric Sciences

Date accepted
Graduation date
Master of Science
Degree level
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 Maud granitoids and the 2.45-2.39 Ga Sherman supracrustal sequence, both of which were formed on Neoarchean crust of the Rae domain. Slave-Churchill collision and convergence occurred ca. 2.43-2.35 Ga resulting in granulite-facies metamorphism, regional scale N-S trending strike-slip shearing, and minor crustal melting in the Queen Maud block. Post-collisional magmatism occurred ca. 2.32 Ga. Between 2.3 and 2.1 Ga mafic magmatism and monazite growth occurred in the western Queen Maud block, possibly as a result of continental rifting. The 2.01-1.91 Ga Thelon Orogeny affects only the western-most Queen Maud block, where 1.93 Ga metamorphism and very weak deformation are preserved.
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