DATASET: A paleolimnological approach for interpreting Aquatic Effects Monitoring at the Diavik Diamond Mine (Lac de Gras, Northwest Territories, Canada)
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Date
2020
Authors
Korosi, Jennifer
Thienpont, Joshua
Eickmeyer, David
Kimpe, Linda
Blais, Jules
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Abstract
A paleolimnological assessment of Lac de Gras (Northwest Territories, Canada) showed pronounced aquatic ecological and biogeochemical changes occurring since at least ~1950, well before diamond mining operations began in 2000. Three sediment cores were collected from the eastern end of Lac de Gras, near to the Diavik Diamond Mine, dated using 210Pb radioisotopes, and analyzed for metals, organic carbon, nitrogen stable isotopes, and diatoms.
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Keywords
Lac de Gras, Northwest Territories, Sediment cores, Sediment geochemistry, Diatoms, 210Pb sediment core dates