Wang, Yiyun; von Dobeneck, Tilo; Bukar, Shettima: Unclassified IRD susceptibility and content, porosity and grain density of sediment core GeoB18530-1 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.971687 (dataset in review), In: von Dobeneck, Tilo; Bukar, Shettima: Rock magnetic, geochemical and sedimentological properties related to IRD composition and content of sediment core GeoB18530-1 [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.971785 (dataset in review)
Abstract:
IRD content is commonly assessed by weighing the detrital particles of the >125µm or > 1mm sieve fractions or by counting the IRD particles of the latter. Here we present these three sedimentological records together with the correctly measured, but numerically rather erratic magnetic susceptibility record of the IRD > 1mm fraction. The spiky character of sieved IRD susceptibility displays the stochastic nature of large IRD particle deposition. Systematic variations in IRD coarseness (calculated as ratio of IRD > 1mm and IRD >125µm) and bulk sediment porosity suggest considerable grain size variability of the glaciomarine Sediment fraction, while bulk particle density is almost constant at values of 2.7-2.8 g/cm³.
Keyword(s):
Related to:
Bukar, Shettima; von Dobeneck, Tilo; Wang, Yiyun; Frederichs, Thomas; Dallanave, Edoardo; St-Onge, Guillaume (submitted): Ice-Rafted Detritus (IRD) of the SE Grand Banks Slope, Newfoundland, Throughout Heinrich Layers 1 to 6 - Part II: Magnetic Properties. Geochemistry, Geophysics, Geosystems
References:
von Dobeneck, Tilo; Bukar, Shettima: Petrological classification and lithology-specific abundance analysis of ice-rafted detritus (IRD) of sediment core GeoB18530-1 [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.971290
Project(s):
Funding:
German Research Foundation (DFG), grant/award no. 221211316: GRK/IRTG 1904: ArcTrain - Processes and impacts of climate change in the North Atlantic Ocean and the Canadian Arctic
Petroleum Technology Development Fund (PTDF), grant/award no. Shettima Bukar: Overseas postgraduate scholarship to Shettima Bukar
Coverage:
Latitude: 42.839500 * Longitude: -49.234833
Date/Time Start: 2014-06-14T13:58:00 * Date/Time End: 2014-06-14T13:58:00
Minimum DEPTH, sediment/rock: 5.601 m * Maximum DEPTH, sediment/rock: 10.491 m
Event(s):
GeoB18530-1 (509-1) * Latitude: 42.839500 * Longitude: -49.234833 * Date/Time: 2014-06-14T13:58:00 * Elevation: -1888.0 m * Recovery: 10.74 m * Location: SE Grand Banks Slope * Campaign: MSM39 * Basis: Maria S. Merian * Method/Device: Gravity corer (GC)
Comment:
Corresponds to Figure 3.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Wang, Yiyun | Geocode | |
| 2 | Heinrich event | Heinrich event | Bukar, Shettima | HE stratigraphy based on Ca/Sr | ||
| 3 | Magnetic susceptibility | MAGS | m3/kg | Bukar, Shettima | Kappabridge, AGICO KLY-2 | From unclassfied IRD > 1mm particles in 10 cm³ |
| 4 | Ice rafted detritus | IRD | % | Wang, Yiyun | Size fraction > 0.125 mm | Sieved sediment volume: 10 cm³ |
| 5 | Ice rafted detritus | IRD | % | Wang, Yiyun | Size fraction > 1 mm, gravel | Sieved sediment volume: 10 cm³ |
| 6 | Ice rafted detritus | IRD | #/cm3 | Bukar, Shettima | Counting >1000 µm fraction | Sieved sediment volume: 10 cm³ |
| 7 | Porosity | Poros | % vol | Wang, Yiyun | Sediment porosity, determined by water loss after drying to constant temperature | Wet and dry weighed sediment volume: 10 cm³ |
| 8 | Density, grain | Density grain | g/cm3 | Wang, Yiyun | Calculated from wet mass and water content | Wet and dry weighed sediment volume: 10 cm³ |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1463 data points