PANGAEA_971687 Unclassified IRD susceptibility and content, porosity and grain density of sediment core GeoB18530-1 Wang, Yiyun; von Dobeneck, Tilo; Bukar, Shettima Unclassified IRD susceptibility and content, porosity and grain density of sediment core GeoB18530-1 2025-10-20 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.971687 Investigator Yiyun Wang yiyunwang@163.com Investigator Shettima Bukar bukar@uni-bremen.de Earth Science DEPTH, sediment/rock Heinrich event Magnetic susceptibility Ice rafted detritus Ice rafted detritus Porosity Density, grain geoscientificInformation 509-1 GeoB18530-1 Geochemistry grain size distribution Grand Banks Margin Gravity corer Heinrich events Ice-Rafted Detritus MSM39 Rock magnetism Kappabridge, AGICO KLY-2 Size fraction > 0.125 mm Size fraction > 1 mm, gravel Counting >1000 µm fraction Sediment porosity, determined by water loss after drying to constant temperature Calculated from wet mass and water content Maria S. Merian 2014-06-14 2014-06-14 Complete 42.8395 42.8395 -49.234833333333 -49.234833333333 5.601 m (DEPTH, sediment/rock) 10.491 m (DEPTH, sediment/rock) ArcTrain Processes and impacts of climate change in the North Atlantic Ocean and the Canadian Arctic unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

Leobener Str.

Bremen Bremen 28359 Germany online 1463 data points text/tab-separated-values Bukar, Shettima; von Dobeneck, Tilo; Wang, Yiyun; Max, Lars; Frederichs, Thomas; Dallanave, Edoardo; St-Onge, Guillaume (2025): Ice-Rafted Detritus of the Southeast Grand Banks Slope, Newfoundland, Throughout Heinrich Layers 1 to 5a: 2. Magnetic Properties. Geochemistry, Geophysics, Geosystems, 26(10), e2024GC011931, https://doi.org/10.1029/2024GC011931 von Dobeneck, Tilo; Bukar, Shettima (2025): Petrological classification and lithology-specific abundance analysis of ice-rafted detritus (IRD) of sediment core GeoB18530-1 [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.971290

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. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.971687"! ** Corresponds to Figure 3.

http://en.wikipedia.org/wiki/Porosity Porosity https://doi.org/10.1029/2024GC011931 Ice-Rafted Detritus of the Southeast Grand Banks Slope, Newfoundland, Throughout Heinrich Layers 1 to 5a: 2. Magnetic Properties https://doi.pangaea.de/10.1594/PANGAEA.971290 Petrological classification and lithology-specific abundance analysis of ice-rafted detritus (IRD) of sediment core GeoB18530-1 https://en.wikipedia.org/wiki/RV_Maria_S._Merian Maria S. Merian PANGAEA_971785 DIF 9.4 2025-10-20 2026-07-16