| Title | Mineralogical investigation of sediments from a mercury-contaminated lake in northwestern Ontario |
| Download | Download (whole publication) |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Percival, J B ;
Drouin-Brisebois, I; Lockhart, W L |
| Source | Canadian Shield/Bouclier canadien; by Geological Survey of Canada; Geological Survey of Canada, Current Research no. 1999-C, 1999 p. 233-240, https://doi.org/10.4095/210188  Open Access |
| Year | 1999 |
| Publisher | Natural Resources Canada |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| Related | This publication is contained in Canadian Shield
|
| File format | pdf |
| Province | Ontario |
| NTS | 52K/03SW; 52K/04SE |
| Area | Clay Lake |
| Lat/Long WENS | -93.7500 -93.2500 50.1167 50.0000 |
| Subjects | mineralogy; geochemistry; cinnabar; sediments; cores; mercury geochemistry; mineralogical analyses; lake sediment geochemistry; x-ray diffraction; chemical analysis; Precambrian |
| Illustrations | sketch maps; photomicrographs; analyses |
| Released | 1999 02 01 |
| Abstract | The form of inorganic mercury in a highly contaminated river-lake system in northwestern Ontario was investigated using routine X-ray powder diffraction analyses and scanning electron microscopy.
Evidence for the occurrence of authigenic cinnabar in the peak contaminated zone is shown. The presence of a mercuric sulphide mineral indicates anoxic conditions with depth, limits methylation of mercury in the lake sediment, and accounts for the
progressive burial history of contaminated sediments. |
| GEOSCAN ID | 210188 |
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