00000nam 2200000za 4500 9.854200 CaOODSP 20251031142447 cr ||||||||||| 180323s2018 oncbd ob f000 0 eng d CaOODSP eng n-cn-nu M183-2/8234E-PDF Bedrock geochemistry of the central Thelon tectonic zone, Nunavut [electronic resource] / J.B. Whalen … [et al.]. [Ottawa] : Natural Resources Canada, 2018. 49 p. : col. charts, col. maps. Open file ; 8234 This record only includes the Open File in PDF; the complete data set with all the files in various formats is available for free download at http://geoscan.nrcan.gc.ca/. Includes bibliographical references. “The Chantrey-Thelon activity was initiated to help attract mineral exploration to this underexplored region of Nunavut by defining its tectonic evolution and crustal architecture. This report presents the first bedrock geochemical data for plutonic and volcanic rocks of the Thelon tectonic zone. The results strongly point to plutonic rock genesis at ca. 2.0 Ga in a convergent plate tectonic setting involving either subduction or slab failure or both. A syn-collisional origin is indicated for ca. 1.9 Ga leucogranites that form a fundamental boundary on the western margin of Mesoarchean crust of the Rae craton. Comparison with published geochemical data for the Taltson magmatic zone south of the MacDonald fault call into question its long-standing correlation with the Thelon tectonic zone”--Provided by publisher. gccst Geochemistry gccst Geophysics gccst Structural geology Whalen, Joseph Bruce. Canada. Natural Resources Canada. Geological Survey of Canada. Open file (Geological Survey of Canada) 8234. (CaOODSP)9.506878 PDF 9.52 MB https://publications.gc.ca/collections/collection_2018/rncan-nrcan/m183-2/M183-2-8234-eng.pdf 306385