Organic matter content and grain size distribution in a lake sediment core, Bylot Island, Nunavut, Canada.

This dataset presents an estimation of the organic matter content (by loss-on-ignition) and particle size (grain size analysis) in a 109 cm-long lake sediment core from a thermokarst lake in Bylot Island, Nunavut, Canada. The core was collected in June 2015 at « Gull Lake » (also named BYL-66 in other publications) 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 core, then freeze-dried and combusted (550 °C for 4 h) to remove the organic fraction. Second, a part of these samples was grouped into eight 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).

Data and Resources

Dataset extent

Map data © OpenStreetMap contributors
Source http://www.cen.ulaval.ca/nordicanad/dpage.aspx?doi=10.5885/45603CE-21852993EE434926
Version 1.0
Citation Fortier, D., Bouchard, F. 2020. Organic matter content and grain size distribution in a lake sediment core, Bylot Island, Nunavut, Canada., v. 1.0 (2015-2015). Nordicana D52, doi: 10.5885/45603CE-21852993EE434926.
Authors
  • Author Name: Daniel Fortier
  • Author Name: Frédéric Bouchard
Temporal coverage
  • Temporal coverage start: 2015-06-01  Temporal coverage end: 2015-06-01
Spatial coverage { "coordinates": [ -79.9684, 73.1548 ], "type": "Point" }
Station cen-whapmagoostui-kuujuarapik-research-station
Variable measured
  • Variable name: Grain-size analysis  Variable description: Particle size distribution (grain-size analysis) of a 109 cm-long lake sediment core.  Variable unit: Percentage  Variable URL: http://www.cen.ulaval.ca/nordicanad/infounitedonnees.aspx?id=589009
  • Variable name: Loss-on-ignition  Variable description: Estimation of the organic matter content (by loss-on-ignition) of a 109 cm-long lake sediment core.  Variable unit: Percentage  Variable URL: http://www.cen.ulaval.ca/nordicanad/infounitedonnees.aspx?id=589008
Measurement Technique
    Date published 2020-03-04
    Date modified 2020-03-04
    Status Public
    Publisher
    • Publisher name: Nordicana D  Publisher URL: http://www.cen.ulaval.ca/nordicanad/en_index.aspx
    Provider
    • Provider name: Centre d'études Nordiques (CEN)  Provider URL: http://www.cen.ulaval.ca/
    License http://www.cen.ulaval.ca/nordicanad/en_modalite.aspx