GEOSCAN Search Results: Fastlink

GEOSCAN Menu


TitleRationale, research approach, and study sites for investigating vertical metal distributions in lacustrine sediments
DownloadFree download (whole publication) (zip 212296 KB)
AuthorAlpay, S; Veillette, J J; Rosa, F; Douma, M
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, 17 pages; 1 CD-ROM, https://doi.org/10.4095/221167
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; Ontario
NTS31M/09; 31M/10; 31M/11; 31M/12; 31M/13; 31M/14; 31M/15; 31M/16; 31N/12; 31N/13; 32C/04; 32C/05; 32C/12; 32C/13; 32D; 32E/01; 32E/02; 32E/03; 32E/04; 32F/04; 41P/09; 41P/16; 42A/01; 42A/08; 42A/09; 42A/16; 42H/01
AreaRouyn-Noranda; lac de la Pépinière; Lake Perron; northwestern Ontario
Lat/Long WENS-80.5000 -77.5000 49.2500 47.5000
Subjectsgeochemistry; environmental geology; surficial geology/geomorphology; smelters; mining activities; metals; lake sediments; geochemical interpretations; geochemical analyses; depositional history; concentration; pollution; variation trends; environmental studies; element distribution; sediment-water interface; remobilization; diagenesis; diatoms; lake water geochemistry; acidity; oxidation; solubilities; mineral enrichment; environmental impacts; water quality; waste disposal; mine waste products; transport mechanisms; stable isotope studies; acoustic surveys; lake sediment cores; water temperature; resource management; Horne Smelter; anthropogenic sources; redistribution; dissolved oxygen; bio-indicators; paleolimnology; risk assessment; risk management; toxicity; bioavailability
Illustrationsflow charts; location maps; tables; rose diagrams; geological sketch maps; profiles; seismic images; bathymetric maps
ProgramMetals in the Environment (MITE)
LinksMetadata
LinksMétadonnées
Released2005 12 22
AbstractMetals such as iron are generally more concentrated near the sediment-water interface than in deeper lake sediments. These observations have been widely reported. This enrichment has been attributed to increased recent anthropogenic deposition and/or to vertical diagenetic remobilization. TheGeological Survey of Canada's Metals in the Environment (GSC MITE) Initiative has established a second phase of lake-sediment research to explore the relative effects of chronological metal loading and diagenetic metal remobilization in lake-sediment profiles.
Two acidic kettle lakes in the Canadian boreal forest, Lake Perron and Lac de la Pépinière,were selectedwithin the zone of influence of the Horne smelter in Rouyn-Noranda (Quebec). Major selection criteria were indications that the sites have been exposed to smelter emissions, i.e. diatom evidence of increased lake-water acidity over time, geographic orientation in the prevailing wind directions with respect to the smelter, and no obvious metal loading from local anthropogenic sources other than the Horne smelter. Since changes in oxidation state and solubility can drive metal mobility, lakes were chosen with a fully oxygenated water column in summer and a high probability of hypolimnetic anoxia in winter.
The rationale behind this study is to assess whether or not lake sediments from the study sites can be used as reliable archives of historical metal loading. The research approach and field sites chosen form essential contextual data from which emerging multidisciplinary analytical results of diatom studies, pollen counts, solid- and aqueous-phase geochemistry, isotopic determinations, bacterial enumerations, and quantitative mineralogy can be interpreted and integrated.
GEOSCAN ID221167