| Title | Distinction des accumulations de métaux provenant de sources géogènes et anthropiques aux environs de la fonderie Horne : la dendrogéochimie en tant qu'outil de surveillance environnementale |
| Download | Download (whole publication) |
| Author | Savard, M M; Bégin, C; Parent, M; Marion, J; Smirnoff, A; Hou, X; Tassé, N; Sharp, Z |
| Source | Metals 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/10.4095/221169 (Open Access) |
| Links | Métadonnées
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| Links | Metadata
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| Year | 2005 |
| Publisher | Natural Resources Canada |
| Document | serial |
| Lang. | French |
| Maps | Publication contains 1 map |
| Map Info. | surficial geology, 1:250,000 |
| Media | CD-ROM; digital; on-line |
| Related | This 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 format | readme / lisez-moi
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| Province | Quebec |
| NTS | 32C/04; 32C/05; 32C/12; 32C/13; 32D/01; 32D/02; 32D/03; 32D/06; 32D/07; 32D/08; 32D/09; 32D/10; 32D/11; 32D/14; 32D/15; 32D/16 |
| Area | Rouyn-Noranda |
| Lat/Long WENS | -79.5000 -77.7500 49.0000 48.0000 |
| Subjects | geochemistry; environmental geology; surficial geology/geomorphology; smelters; mining activities; metals; geochemical interpretations; geochemical analyses; depositional history; concentration;
pollution; variation trends; environmental studies; environmental impacts; resource management; biogeochemistry; dendrochronology; soil studies; soil horizons; lead; lead isotope ratios; calcium; magnesium; manganese; hydrogen; carbon; cadmium;
sulphur emissions; vegetation; trace element analyses; major element analyses; stable isotope studies; mass spectrometer analysis; x-ray emission spectroscopy; fonderie Horne; Horne smelter; boreal forest; black spruce; white spruce;
bioavailability |
| Illustrations | location maps; schematic diagrams; flow charts; time series; tables; profiles; 3-D diagrams |
| Program | Metals in the Environment (MITE) |
| Program | Metals in the Environment Research Network
(MITE-RN) |
| Released | 2005 12 22 |
| Abstract | One of the main challenges in environmental research in Canada is to distinguish between natural and anthropogenic accumulations of potentially toxic metals in mining regions. In this paper, we evaluate
a new environmental monitoring tool that combines dendrochronology with natural (Ca, Mg, Ca/Mn, delta-2H, delta-13C) and anthropogenic (Cd, Pb, 206Pb/207Pb) geochemical tracers. Spruce trees and soil horizons were sampled at a control site in the
Hudson Bay region and near the Horne smelter, which has been in operation in Rouyn-Noranda, Quebec, since 1928.
The delta-2H and delta-13C values from trees near the smelter show major changes immediately after 1928. These changes are due to the
presence of atmospheric SO2 that generates a rapid response in the foliar system. Cadmium and lead concentrations show a major increase starting in 1944 that coincides with a decrease in the 206Pb/207Pb ratios. Smelter activities likely caused these
changes and the 14-year delay in response may be due mainly to the buffering effect of soils. The 206Pb/207Pb ratios indicate that growth rings contain at least three categories of lead, i.e. natural lead derived from the mineral soil horizons,
industrial lead from Canadian and American urban areas, and mining lead typical of the Abitibi sulphides emitted by the smelter. This new use of natural and anthropogenic tracers allows us to recognize the succession of atmospheric and
pedogeochemical transformations related to industrial activities in a mining area. |
| GEOSCAN ID | 221169 |
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