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Sediment cores were retrieved from Decker Lake with a modified K-B corer (internal diameter ~6.35 cm) on February 7th, 2002 by A.J. Downie, Ian Sharpe, Mark West and Ian Wilson. Two cores were retrieved, one from the east basin at approximately 15 meters depth that was 47 cm in length. Samples were sectioned into 1.0 cm intervals, which were stored at the Ministry and later shipped to Queen's University where they were stored in our coldroom at 4* C. All the samples were weighted to determine the total wet weight of sediment prior to subsampling for 210Pb, loss-on-ignition and diatom analyses. Twenty intervals were subsampled for diatoms from only Decker Lake West. Earlier 210Pb analyses for Decker Lake East core suggested that the dating of this core would be problematic and with large uncertainties, thus no diatom analyses were carried out. For the Decker West sediment core, every two cm was sampled from 0 to 38.0 cm for diatom analyses. Seventeen intervals were prepared for 210Pb analysis (see below) for Decker West using gamma spectroscopy at PEARL, Queen's University.
Cumming, Dr. Brian, Laird, Dr Kathleen. 2005. Assessment of Changes in Total Phosphorus in Decker Lake West, B.C.: A Paleolimnological Assessment -. BC Ministry of Water Land and Air Protection
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Keywords: Decker Lake, Assessment, Phosphorus, Paleolimnological Assessment
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