00000nam 2200000zi 4500 9.895418 CaOODSP 20251031142448 m o d f cr mn||||||||| 210118t20192019oncab ob f000 0 eng d CaOODSP eng rda CaOODSP n-cn-nu M183-2/8585E-PDF Skipton, Diane R., 1984- author. U-Pb zircon geochronology of Archean greenstone belts (Mary River Group) and surrounding Archean to Paleoproterozoic rocks, northern Baffin Island, Nunavut / D.R. Skipton, N. Wodicka, V. McNicoll, B.M. Saumur, M.R. St-Onge, and M.D. Young. Ottawa, Ontario : Geological Survey of Canada, 2019. ©2019 1 online resource (43 pages) : illustrations (chiefly colour), colour maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Open file ; 8585 This record only includes the Open File report 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 (pages 40-43). "Prior to 1:100,000-scale geological mapping conducted in 2017-2018, northern Baffin Island remained a major knowledge gap in the understanding of the northern Rae craton and the tectonic assembly of northeastern Laurentia. Geochronological data in the region was sparse; only four published U-Pb dates existed in the mapping area (~67,000 km²). Resolving the geology and age of the Archean Mary River Group – host to the Mary River iron mine – and the surrounding felsic-to-intermediate gneiss has key implications for the regional tectonic history and mineral prospectivity. In this study, we present new UPb zircon ages for 16 samples, including: 3 metavolcanic rocks and a quartzite from the Mary River Group; 2 psammite samples from newly discovered strata near Pond Inlet; 8 felsic-to-intermediate metaplutonic rocks; and 2 mafic metaplutonic rocks"--Abstract, page 1. Uranium-lead dating Nunavut Baffin Island. Geological time Nunavut Baffin Island. Metamorphic rocks Nunavut Baffin Island. Sedimentary rocks Nunavut Baffin Island. Datation Méthode uranium-plomb Nunavut Baffin, Île de. Géochronologie Nunavut Baffin, Île de. Roches métamorphiques Nunavut Baffin, Île de. Roches sédimentaires Nunavut Baffin, Île de. Geological Survey of Canada, issuing body. Open file (Geological Survey of Canada) 8585. (CaOODSP)9.506878 PDF 18.25 MB https://publications.gc.ca/collections/collection_2021/rncan-nrcan/m183-2/M183-2-8585-eng.pdf (Open File report) HTML N/A https://doi.org/10.4095/314938 (complete data set) 314938