de.pangaea.dataset971771 und de.pangaea.dataset971785 dataset PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact 2026-07-16T14:48:25Z https://doi.pangaea.de/10.1594/PANGAEA.971771 <gco:CharacterString>Grain-size distribution and grain-size dependent magnetic susceptibility of sediment core GeoB18530-1</gco:CharacterString> 2025-10-20T06:26:17 publication https://doi.org/10.1594/PANGAEA.971771 Bukar, Shettima
bukar@uni-bremen.de
https://orcid.org/0000-0003-4154-6045 information author von Dobeneck, Tilo
tvondobeneck@marum.de
https://orcid.org/0000-0002-0087-4053 information author PANGAEA
info@pangaea.de
https://www.pangaea.de/ information publisher tableDigital Since the weight percentages of (classifiable) IRD particles > 1 mm and (unclassifiable, but separable) IRD particles > 125 µm both largely underestimate the total content and magnetic impact of IRD, it is important to quantify also the finer IRD fractions and their magnetic susceptibilities. From each of the IRD-rich sediment units H1, I1 and H2, six magnetic cube samples of 6.2 cm³ each were combined, dried, weighed and ultrasonically suspended in water. These three slurries were successively washed through 16 stacked sieves with mesh sizes in approximately 0.5 phi steps from 4000 µm to 5 µm using a Fritsch wet sieve shaker. The sieve fractions were carefully collected, dried, weighed and measured in a Kappabridge KLY2 susceptometer. The data and therefrom-derived partial susceptibilities and cumulative distributions clearly demonstrate that the magnetically most dominant and "volatile" sediment particles fall into the 40-125 µm range. Detrital particles of such sizes are too coarse to have been current-transported over long distances and were therefore probably at least partially ice-rafted. completed Wang, Yiyun
yiyunwang@163.com
principalInvestigator Bukar, Shettima
bukar@uni-bremen.de
https://orcid.org/0000-0003-4154-6045 information principalInvestigator Geochemistry grain size distribution Grand Banks Margin Heinrich events Ice-Rafted Detritus Rock magnetism theme <gco:CharacterString>PANGAEA Keyword List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact ArcTrain Processes and impacts of climate change in the North Atlantic Ocean and the Canadian Arctic theme <gco:CharacterString>PANGAEA Project List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation -49.234833333333 -49.234833333333 42.8395 42.8395 2014-06-14T13:58:00 2014-06-14T13:58:00 5.833 6.6035 Corresponds to Figure 6. DEPTH, sediment/rock physicalMeasurement Calculated m m Depth, sediment/rock, top/minimum physicalMeasurement six pooled 6.2 cm³ cube samples m m Depth, sediment/rock, bottom/maximum physicalMeasurement six pooled 6.2 cm³ cube samples m m Heinrich event thematicClassification HE stratigraphy based on Ca/Sr Grain size, minimum physicalMeasurement Wet sieve shaker; 200 mm Ø nylon and inox sieves µm µm Grain size, maximum physicalMeasurement Wet sieve shaker; 200 mm Ø nylon and inox sieves µm µm Size fraction physicalMeasurement Precision scale, Sartorius; Accuracy 0.1 mg % % Magnetic susceptibility physicalMeasurement Kappabridge, AGICO KLY-2 m**3/kg m**3/kg text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.971771?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: 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 2014-06-14T13:58:00 Related to <gco:CharacterString>Ice-Rafted Detritus of the Southeast Grand Banks Slope, Newfoundland, Throughout Heinrich Layers 1 to 5a: 2. Magnetic Properties</gco:CharacterString> 2025-01-01 publication https://doi.org/10.1029/2024GC011931 Bukar, Shettima
bukar@uni-bremen.de
https://orcid.org/0000-0003-4154-6045 information author von Dobeneck, Tilo
tvondobeneck@marum.de
https://orcid.org/0000-0002-0087-4053 information author Wang, Yiyun
yiyunwang@163.com
author Max, Lars
lmax@marum.de
https://orcid.org/0000-0002-8637-4032 information author Frederichs, Thomas
frederichs@uni-bremen.de
https://orcid.org/0000-0003-0976-0332 information author Dallanave, Edoardo
edoardo@uni-bremen.de
https://orcid.org/0000-0003-4673-1792 information author St-Onge, Guillaume author documentDigital Geochemistry, Geophysics, Geosystems 26(10) e2024GC011931 References <gco:CharacterString>Petrological classification and lithology-specific abundance analysis of ice-rafted detritus (IRD) of sediment core GeoB18530-1</gco:CharacterString> 2025-01-01 publication https://doi.org/10.1594/PANGAEA.971290 von Dobeneck, Tilo
tvondobeneck@marum.de
https://orcid.org/0000-0002-0087-4053 information author Bukar, Shettima
bukar@uni-bremen.de
https://orcid.org/0000-0003-4154-6045 information author documentDigital