00000nam 2200000zi 4500 9.938879 CaOODSP 20251031142449 m o d f cr mn||||||||| 240531t20242024oncb ob f000 0 eng d 9780660721705 CaOODSP eng rda CaOODSP n-cn-mb M183-2/9187E-PDF Amor, S. D. (Steve D.) author. Regional lake-sediment geochemical data from northern Manitoba (NTS 064-J and 064-K) : reanalysis data and QA/QC evaluation / S.D. Amor, C.G. Couëslan, M.S. Gauthier, T. Martins, M.W. McCurdy, S.J.A. Day, and S.W. Adcock. [Ottawa] : Geological Survey of Canada, 2024. ©2024 1 online resource (ii, 28 pages) : colour maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Open file, 2816-7155 ; 9187 Includes bibliographical references (pages 24-28). "This report presents new geochemical data, quality assurance and quality control (QA/QC) results of the reanalysis of lake-sediment samples collected from northern Manitoba (NTS 64-J and 64-K). The original sampling programs were conducted in 1975, whose results are presented in Geological Survey of Canada open files 320 (NTS 64-J) and 321 (NTS 64-K). Lake-sediment samples from 2 005 sites were reanalyzed between 2020 and 2022 and included (i) samples from 1 798 regional-scale sites, covering an approximate area of 26 000 km², with an average density of one sample per 13 km², and (ii) 208 samples from sites from more detailed sampling programs conducted in the same year, in the northwest and northeast corners of NTS 64-J and NTS 64-K, respectively, with an average density of one sample per 7 km² over an area of approximately 3,000 km². In the recent re-analysis, samples were measured for 65 elements via modified aqua-regia - ICP-MS, and for 35 elements by INAA. To ensure high-quality geochemical data, the data were evaluated for accuracy, precision, and fitness-for-purpose. QA/QC results have identified several elements to be monitored carefully for future analyses"--Abstract, page 1. Lake sediments Manitoba Analysis. Analytical geochemistry Manitoba. Sédiments lacustres Manitoba Analyse. Géochimie analytique Manitoba. Geological Survey of Canada, issuing body. Open file (Geological Survey of Canada) 9187. (CaOODSP)9.506878 PDF 18.20 MB https://publications.gc.ca/collections/collection_2024/rncan-nrcan/m183-2/M183-2-9187-eng.pdf (Open file report) HTML N/A https://doi.org/10.4095/pj2ggjxa5s (complete dataset)