00000nam 2200000za 4500 9.854746 CaOODSP 20251031142447 cr ||||||||||| 180405s2017 oncbd ob f000 0 eng d CaOODSP eng n-cn-bc n-cn-yk M183-2/8306E-PDF Report of activities, 2017, for Yukon tectonic evolution – late Mesozoic to Tertiary [electronic resource] : GEM2 Cordillera project / D.A. Kellett … [et al.]. [Ottawa] : Natural Resources Canada, 2017. 14 p. : col. charts, col. maps. Open file ; 8306 Includes bibliographical references. “Distinct rock assemblages (terranes) of Devonian to Triassic age were accreted to the northern Cordillera during Early Jurassic, including significant mineral deposits. However, these terranes have been displaced significantly since the Early Jurassic. The upper crustal processes that modified these mineral-endowed terranes are poorly understood, yet are critical for controlling the setting of formation, and subsequent translation of base metal mineralization. This GEM2 research activity is designed to address this gap in our knowledge of the Cordillera by focusing on the upper crustal processes that occurred from the Early Jurassic. To achieve this goal, we are applying low temperature (<400 °C) thermochronology methods including Ar/Ar, K/Ar, U-Th/He and fission track dating. This report outlines 2017 activities in understanding these syn- to post-accretion geological processes, including formation of sedimentary basins, differential exhumation, fluid events and translation of terranes along faults”--Provided by publisher. gccst Geochemistry gccst Geochronology gccst Structural geology Shields (Geology) Kellett D. (Dawn), 1979- Canada. Natural Resources Canada. Geological Survey of Canada. Open file (Geological Survey of Canada) 8306. (CaOODSP)9.506878 PDF 1.77 MB https://publications.gc.ca/collections/collection_2018/rncan-nrcan/m183-2/M183-2-8306-eng.pdf 305956