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TitleThe importance of geological controls on the natural distribution of mercury in lake and stream sediments across Canada
AuthorFriske, P W B; Coker, W B
SourceMercury as a global pollutant: proceedings of the Third International Conference; by Porcella, D (ed.); Huckabee, J (ed.); Wheatley, B (ed.); Water, Air and Soil Pollution vol. 80, no. 1-4, 1995 p. 1047-1051, https://doi.org/10.1007/BF01189764
Year1995
Alt SeriesEarth Sciences Sector, Contribution Series 20060688
Publisherspringer
MeetingThird International Conference on mercury as a global pollutant; Whistler, BC; CA; July 10-14, 1994
Documentserial
Lang.English
Mediapaper; on-line; digital
File formatpdf
ProvinceCanada; British Columbia; Alberta; Saskatchewan; Manitoba; Ontario; Quebec; New Brunswick; Nova Scotia; Prince Edward Island; Newfoundland and Labrador; Northwest Territories; Yukon; Nunavut
NTS1; 2; 3; 10; 11; 12; 13; 14; 15; 16; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 52; 53; 54; 55; 56; 57; 58; 59; 62; 63; 64; 65; 66; 67; 68; 69; 72; 73; 74; 75; 76; 77; 78; 79; 82; 83; 84; 85; 86; 87; 88; 89; 92; 93; 94; 95; 96; 97; 98; 99; 102; 103; 104; 105; 106; 107; 114O; 114P; 115; 116; 117; 120; 340; 560
Lat/Long WENS-141.0000 -50.0000 90.0000 41.7500
Subjectsenvironmental geology; geochemistry; surficial geology/geomorphology; mercury geochemistry; lake sediment geochemistry; stream sediment geochemistry; bedrock geology; lithology; glacial deposits; mercury; heavy metals contamination; shales; regoliths
Illustrationssketch maps; tables; location maps
ProgramNational Geochemical Reconnaissance Program
AbstractThe Geological Survey of Canada (GSC) has surveyed a significant portion of Canada using systematic stream and lake surveys under the National Geochemical Reconnaissance (NGR) program. Total mercury (Hg) data, available for most of the sites, reveal significant natural variation. Much of the observed variation in Hg concentration can be directly related to the composition of the bedrock, regolith and glacial deposits in the surrounding watershed. Some of the highest Hg values within the sediments of Ontario lakes occur southwest of Thunder Bay in an area underlain by shales known to be naturally enriched in Hg and other trace metals.
GEOSCAN ID223539