Bukar, Shettima; von Dobeneck, Tilo: Rock magnetic properties of petrologically representative IRD particles in sediment core GeoB18530-1 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.971696 (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:
In order to determine the bulk magnetic impact of all 22 classified IRD lithologies, the specific petromagnetic properties of each were investigated in detail. In order to represent host rock composition as good as possible and to meet the magnetometric sensitivity requirements, the largest available IRD particles (dropstones) of each IRD species were selected, that were typically of granule or pebble size. Where such large particles were not available, several petrologically similar coarse sand-sized particles were combined in one sample. Great care was taken in sample preparation and sample holder correction to reach reliable values even for small and low-magnetic samples. In addition to magnetic properties, we also provide averaged IRD counts of HLs and in ILs for each IRD lithology.
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 Elevation: -1888.0 m * Maximum Elevation: -1888.0 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 4.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Lithology/composition/facies | Lithology | Bukar, Shettima | Stereo microscope, Zeiss, Stemi | Identifiable IRD lithologies | |
| 2 | Ice rafted detritus | IRD | #/cm3 | Bukar, Shettima | Counting >1000 µm fraction | Cumulated classfied counts of 93 HL IRD fractions |
| 3 | Ice rafted detritus | IRD | #/cm3 | Bukar, Shettima | Counting >1000 µm fraction | Cumulated classfied counts of 117 IL IRD fractions |
| 4 | Magnetic susceptibility | MAGS | m3/kg | Bukar, Shettima | Kappabridge, AGICO KLY-2 | MAGS of petrologically representative IRD particle(s) |
| 5 | Isothermal remanent magnetization, mass-normalized | IRM mass norm | A*m2/kg | Bukar, Shettima | Magnetometer, cryogenic, pass-through, 2G Enterprises 755 R | IRM 300mT of petrologically representative IRD particle(s) |
| 6 | Hard isothermal remanent magnetization | HIRM | A*m2/kg | Bukar, Shettima | Magnetometer, cryogenic, pass-through, 2G Enterprises 755 R | HIRM 2.7T-0.3T of petrologically representative IRD particle(s) |
| 7 | Saturation isothermal remanent magnetization/kappa ratio | SIRM/kappa | A/m | Bukar, Shettima | Magnetometer, cryogenic, pass-through, 2G Enterprises 755 R | SIRM 2.7T / chi_lf ratio of petrologically representative IRD particle(s) |
| 8 | S-ratio | S-ratio | Bukar, Shettima | Magnetometer, cryogenic, pass-through, 2G Enterprises 755 R | SIRM 0.3T / SIRM 2.7T ratio of petrologically representative IRD particle(s) |
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:
171 data points