00000nam 2200000zi 4500 9.915284 CaOODSP 20230830150232 m o d f cr mn||||||||| 220909t20222022oncab ob f000 0 eng d 9780660454030 CaOODSP eng rda CaOODSP eng eng fre n-cn--- r------ M183-7/3-2022E-PDF Tschirhart, Victoria, author. Geophysical contributions to a synthesis of western Churchill geology and metallogeny / V. Tschirhart, S. Pehrsson, N. Wodicka, J.A. Percival, C.W. Jefferson, T. Peterson, and R.G. Berman. [Ottawa] : Geological Survey Canada, 2022. ©2022 1 online resource (47 pages) : colour illustrations, colour maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Preprint, 2816-7872 ; 3 Includes bibliographical references (pages 34-47). "The geophysical data sets available for the western Churchill Province have had a bearing on the understanding of its structure, evolution and metal endowment. New data were acquired and interpreted during the Geo-mapping for Energy and Minerals (GEM) Program (2008-2020). Regional, high-resolution aeromagnetic, and targeted gravity and magnetotelluric surveys were collected in GEM, in conjunction with geological mapping projects, in order to provide control on bedrock features beneath widespread glacial overburden and flat-lying sedimentary basins. Quantitative estimates of three-dimensional geometry were obtained in key areas through geophysical models integrating the geophysical characteristics with local rock property measurements. These geophysical data sets contributed to new knowledge and interpretations in three related research fields: 1) location and nature of Rae craton's boundaries within the western Churchill Province; 2) definition of internal Rae architecture; and 3) identification of reactivated structures controlling gold and uranium mineralization. The new data, models and emerging tectonic and metallogenic frameworks will serve as guides for future exploration in this remote, complex, challenging region"--Abstract, page 1. Includes abstracts in English and French. Magnetic anomalies Canada, Northern. Gravity anomalies Canada, Northern. Geophysical surveys Canada, Northern. Anomalies magnétiques Canada (Nord) Anomalies de la pesanteur Canada (Nord) Levés géophysiques Canada (Nord) Geological Survey of Canada, issuing body. Preprint (Geological Survey of Canada) 3. (CaOODSP)9.913739 PDF 34.20 MB https://publications.gc.ca/collections/collection_2023/rncan-nrcan/M183-7-3-2022-eng.pdf HTML N/A https://doi.org/10.4095/330639