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TitleNeruokpuk Formation, northern Yukon: U-Pb detrital zircon and Ar-Ar sample descriptions, geochronology data tables and imagery
AuthorLane, L S; Gehrels, G E; Layer, P W
SourceGeological Survey of Canada, Open File 7733, 2015, 24 pages, (Open Access)
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
File formatpdf
NTS117C/08; 107D/04; 107D/05
AreaAlaska; Canada; United States
Lat/Long WENS-141.0000 -139.0000 69.4167 69.0000
Subjectsgeochronology; sandstones; shales; siltstones; zircon; zircon dates; uranium lead dates; argon argon dates; provenance; Neruokpuk Formation; Arctic Alaska terrane; Laurentia; Proterozoic; Cambrian
Illustrationsmicrographs; thin sections; phtographs
ProgramWestern Arctic Sverdrup Basin, GEM2: Geo-mapping for Energy and Minerals
Released2015 07 21
AbstractThe Neruokpuk Formation of northern Yukon and adjacent Alaska is a succession of Edicaran to Cambrian turbiditic sandstones, siltstones and shales comprising part of the northeastern Arctic Alaska terrane. Its provenance and original paleogeographic position with respect to NW Laurentia is a focus of study and debate. This report provides sample and site descriptions, field photos, thin section micrographs and images of zircon grain mounts for a suite of samples processed and analysed for detrital zircon U-Pb ages and detrital muscovite Ar-Ar ages. The complete filtered and sorted data tables for both the U-Pb and Ar-Ar results and U-Pb concordia plots are also presented here. These data document a provenance consistent with derivation from a NW Laurentian source area.
Summary(Plain Language Summary, not published)
This open file presents detailed data tables for a suite of geochronology analyses and the accompanying sample descriptions, photos and micrographs. They document the age distributions of zircon and mica grains embedded within sandstones and demonstrate that these strata were derived from the erosion of rocks within northwestern Canada. They document the data that underpins a synthesis publication in a refereed journal.