Unclassified IRD susceptibility and content, porosity and grain density of sediment core GeoB18530-1

• Main Authors: Wang, Yiyun, von Dobeneck, Tilo, Bukar, Shettima
• Format: Dataset
• Language: English
• Published: PANGAEA
• Subjects: 509-1; ArcTrain; Calculated from wet mass and water content; Counting >1000 µm fraction; Density; grain; DEPTH; sediment/rock; GC; GeoB18530-1; Geochemistry; grain size distribution; Grand Banks Margin; Gravity corer; Heinrich event; Heinrich events; Ice rafted detritus; Ice-Rafted Detritus; Kappabridge; AGICO KLY-2; Magnetic susceptibility; Maria S. Merian; MSM39; Porosity; Processes and impacts of climate change in the North Atlantic Ocean and the Canadian Arctic; rock magnetism; Sediment porosity; determined by water loss after drying to constant temperature; SE Grand Banks Slope; Size fraction > 0.125 mm; Size fraction > 1 mm; gravel; Climate change; North Atlantic
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.971687

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.