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TitlePollen analysis of sediment cores from lakes in the Rouyn-Noranda region, Quebec
DownloadFree download (whole publication) (zip 212296 KB)
AuthorGrenier, A; Kliza, D A
SourceMetals in the environment around smelters at Rouyn-Noranda, Quebec, and Belledune, New Brunswick: Results and conclusions of the GSC MITE Point Sources Project; by Bonham-Carter, G; Geological Survey of Canada, Bulletin no. 584, 2005, 12 pages; 1 CD-ROM, https://doi.org/10.4095/221165
Year2005
PublisherNatural Resources Canada
Documentserial
Lang.English
MapsPublication contains 1 map
Map Info.surficial geology, 1:250,000
MediaCD-ROM; digital; on-line
RelatedThis publication is contained in Bonham-Carter, G; (2005). Metals in the environment around smelters at Rouyn-Noranda, Quebec, and Belledune, New Brunswick: results and conclusions of the GSC MITE Point Sources Project, Geological Survey of Canada, Bulletin no. 584
File formatreadme / lisez-moi
File formataep (ESRI® ArcExplorer(TM) v. 2.0 is included / est fourni); apr (ESRI® ArcExplorer(TM) v. 2.0 is included / est fourni); avl (ESRI® ArcExplorer(TM) v. 2.0 is included / est fourni); bmp; dbf (ESRI® ArcExplorer(TM) v. 2.0 is included / est fourni); dmg (Adobe Acrobat Reader v.6.0 is included / est fourni); doc (Microsoft Word); e00 (ESRI® ArcExplorer(TM) v. 2.0 is included / est fourni); fpt (ESRI® ArcExplorer(TM) v. 2.0 is included / est fourni); gif; htm; jpg; pdf (Adobe Acrobat Reader v.6.0 is included / est fourni); pdx (Adobe Acrobat Reader v.6.0 is included / est fourni); prj (ESRI® ArcExplorer(TM) v. 2.0 is included / est fourni); sbn (ESRI® ArcExplorer(TM) v. 2.0 is included / est fourni); sbx (ESRI® ArcExplorer(TM) v. 2.0 is included / est fourni); shp (ESRI® ArcExplorer(TM) v. 2.0 is included / est fourni); txt; xls (Microsoft Excel); xml; pdf
ProvinceQuebec
NTS31M/14; 31M/15; 31M/16; 31N/13; 32C/04; 32C/05; 32D/01; 32D/02; 32D/03; 32D/06; 32D/07; 32D/08
AreaRouyn-Noranda; Val-d'Or; Duparquet; Amos; Cadillac; Évain; Malartic; Lake Hector; Lake Marlon; Moose Lake; Lake Bigat; Lake Claire; Lake Vert
Lat/Long WENS-79.5000 -77.5000 48.6333 47.7500
Subjectsgeochemistry; environmental geology; geochronology; lake sediment cores; pollen analysis; pollen stratigraphy; lead isotope ratios; radiometric dating; sedimentation rates; mining activities; mine site development; development history; biochronology; biostratigraphy; vegetation history; environmental studies; environmental impacts; geochemical interpretations; Horne smelter; Ambrosia; ragweed; profiles; deforestation; anthropogenic pollution; pollen spectra; tree species; boreal forest
Illustrationstables; profiles; location maps; photographs; aerial photographs; digital images; Box-and-whisker diagrams
ProgramMetals in the Environment (MITE)
LinksMetadata
LinksMétadonnées
Released2005 12 22
AbstractAmbrosia pollen was used as a marker for the relative dating of lake-sediment cores from eight lakes in the vicinity of Rouyn-Noranda. The profiles of Ambrosia counts versus depth in the cores of these lakes have a characteristic shape, and the first sharp increase from the bottom is taken as a marker horizon. The marker occurs at about 7.5 cm depth at Lake Marlon (4 km east of Rouyn-Noranda) and is found
progressively deeper in the cores from lakes farther east, being about 13 cm deep in Lake Vert, 25 km north of Val-d'Or and 100 km east of Rouyn-Noranda. Lead isotope (210Pb) dating of the core from 'Gravel Pit' Lake (9 km east of Rouyn-Noranda) gives an approximate age of the Ambrosia marker that is consistent with the age of the development of the Noranda mining community (ca. 1926), and an average sedimentation rate over the whole core of about 0.11 cm/a. The somewhat earlier development of the region farther east, around Val-d'Or and the communities between Val-d'Or and Rouyn-Noranda, may account in part for the deeper position of the Ambrosia marker in these cores. However, the sedimentation rate in Lake Vert is between 0.15 and 0.17 cm/a (the boundaries corresponding to the ages of the Val-d'Or and Rouyn-Noranda communities, respectively), and is therefore greater than the sedimentation rate in 'Gravel Pit' Lake.
GEOSCAN ID221165