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D52 10.5885/45603CE-21852993EE434926 Published
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Organic matter content and grain size distribution in lake sediment cores, Bylot Island, Nunavut, Canada.

Daniel Fortier1, 3, Frédéric Bouchard2, 3, Zhaoyi Zhang1, 3, Stéphanie Coulombe1, 3
1Département de géographie, Université de Montréal
2Géosciences Paris Sud (GEOPS), Université Paris Saclay
3Centre d'études nordiques (CEN)

Abstract

This dataset presents an estimation of the organic matter content (by loss-on-ignition) and particle size (grain size analysis) in two lake sediment cores (109 cm, 114 cm) from two different lakes located on Bylot Island, Nunavut, Canada. The cores were collected in June 2015 at « Gull Lake » (also named BYL-66 in other publications) and lake K (also named BYL-36) from the still-present ice cover with a 7 cm-diameter percussion corer (Aquatic Research Instruments). First, samples were collected at each cm along the cores, then freeze-dried and combusted (550 °C for 4 h) to remove the organic fraction. Second, a part of these samples was grouped into stratigraphic sub-units based on visual descriptions of the core. These samples were analyzed for their grain size distribution, either by sieving for coarser material (sand, gravel), or by hydrometry for finer sediment (clay, silt). For lake K, the finer fraction of the subsamples were analyzed by laser diffraction.

Data citation

Fortier, D., Bouchard, F., Zhang Z., Coulombe,S. 2021. Organic matter content and grain size distribution in lake sediment cores, Bylot Island, Nunavut, Canada., v. 1.1. Nordicana D52, doi: 10.5885/45603CE-21852993EE434926.

Location map

Key references

  • Bouchard, F., Fortier, D., Paquette, M., Boucher, V., Pienitz, R., and Laurion, I.: Thermokarst lake inception and development in syngenetic ice-wedge polygon terrain during a cooling climatic trend, Bylot Island (Nunavut), eastern Canadian Arctic, The Cryosphere, 14, 2607–2627, https://doi.org/10.5194/tc-14-2607-2020, 2020.
    DOI: 10.5194/tc-14-2607-2020

Contributors

Pienitz, Reinhard Département de géographie, Université Laval & Centre d'études nordiques (CEN) Laurion, Isabelle Centre Eau Terre Environnement, Institut national de la recherche scientifique (INRS-ETE) & Centre d'études nordiques (CEN)

Acknowledgements

Audrey Veillette (U. Montréal), Vilmantas Preskienis (INRS-ETE) and Maxime Tremblay (UQTR) collected the sediment core in the field. Arianne Lafontaine and Andréanne Lemay (U. Montréal) conducted laboratory work for grain size analysis of the sediments (sieving and hydrometry).

Version history

You can request an older version by contacting nordicana@cen.ulaval.ca

Measurement sites

Site Latitude Longitude Altitude (m)
Site BYL-66 (Gull Lake) 73.154773 -79.968448 8.41 More info
Site BYL-36 (lake K) 73.1598 -79.968 7.95 More info

Download

Data available for download are in ZIP format. Please properly cite the data when using it.

GullLake_LOI_data.txt Get file
File: ds_000602762.zip Size: 10.87 KB
Sites
Site BYL-66 (Gull Lake)
Data
Loss-on-ignition 06/2015 – 06/2015
GullLake_GrainSize_data.txt Get file
File: ds_000602766.zip Size: 6.68 KB
Sites
Site BYL-66 (Gull Lake)
Data
Grain-size analysis 06/2015 – 06/2015
LakeK_GrainSize_data.txt Get file
File: ds_000602799.zip Size: 7.4 KB
Sites
Site BYL-36 (lake K)
Data
Grain-size analysis 06/2015 – 06/2015