von Dobeneck, Tilo; Bukar, Shettima: Relative and absolute abundance records of three IRD particle groups and six major IRD lithologies of sediment core GeoB18530-1 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.971288 (dataset in review), In: von Dobeneck, T; Bukar, S: 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 (dataset in review)
Abstract:
As detailed in Bukar et al. (2024), the 22 classifiable IRD lithologies can be group according to their preferred affiliation to Heinrich Layers (HL) and Interlayers (IL). Group 1 has higher relative abundance during HLs, Group 3 has a higher percentage during ILs, while Group 2 is similarly high represented in HLs and ILs. This data set contains relative and absolute IRD count records of Groups 1-3 and the six major IRD lithologies (Shale, Sucrosic Dolomite, Shocked Quartz, Hematite-coated Quartz, Muscovite-Biotite Granite, Ooid-bearing Dolomite). All here presented count records were smoothed by a weighed 5-point (factors 1-2-5-2-1) running mean to reduce stochastic high-frequency noise related to the relative small individual count numbers.
Related to:
Bukar, Shettima; Lisker, Frank; von Dobeneck, Tilo; Max, Lars; Wang, Yiyun; Lenz, Marlene M; Mulitza, Stefan; St-Onge, Guillaume; Piper, David (submitted): Ice-Rafted Detritus (IRD) of the SE Grand Banks Slope, Newfoundland, Throughout Heinrich Layers 1 to 6 - Part I: Petrology and Abundance. Geochemistry, Geophysics, Geosystems
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: 5.647 m * Maximum DEPTH, sediment/rock: 10.073 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 11 a-d
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Bukar, Shettima | Geocode – Stratigraphy based on Ca/Sr | |
| 2 | Heinrich event | Heinrich event | Bukar, Shettima | Stratigraphy based on Ca/Sr | ||
| 3 | Ice rafted detritus, Group | IRD Group | % | Bukar, Shettima | Counting >1000 µm fraction | IRD Group 1 (HL% < IL%) |
| 4 | Ice rafted detritus, Group | IRD Group | % | Bukar, Shettima | Counting >1000 µm fraction | IRD Group 2 (HL% ≈ IL%) |
| 5 | Ice rafted detritus, Group | IRD Group | % | Bukar, Shettima | Counting >1000 µm fraction | IRD Group 3 (HL% > IL%) |
| 6 | Ice rafted detritus, Shale | IRD Shale | % | Bukar, Shettima | Counting >1000 µm fraction | |
| 7 | Ice rafted detritus, Sucrosic Dolomite | IRD Sucrosic Dolomite | % | Bukar, Shettima | Counting >1000 µm fraction | |
| 8 | Ice rafted detritus, Shocked Quartz | IRD Shocked Quartz | % | Bukar, Shettima | Counting >1000 µm fraction | |
| 9 | Ice rafted detritus, Hematite-coated Quartz | IRD Hematite-coated Quartz | % | Bukar, Shettima | Counting >1000 µm fraction | |
| 10 | Ice rafted detritus, Muscovite-Biotite Granite | IRD Muscovite-Biotite Granite | % | Bukar, Shettima | Counting >1000 µm fraction | |
| 11 | Ice rafted detritus, Ooid-bearing Dolomite | IRD Ooid-bearing Dolomite | % | Bukar, Shettima | Counting >1000 µm fraction | |
| 12 | Ice rafted detritus, Group | IRD Group | #/cm3 | Bukar, Shettima | Counting >1000 µm fraction | IRD Group 1 (HL% < IL%) |
| 13 | Ice rafted detritus, Group | IRD Group | #/cm3 | Bukar, Shettima | Counting >1000 µm fraction | IRD Group 2 (HL% ≈ IL%) |
| 14 | Ice rafted detritus, Group | IRD Group | #/cm3 | Bukar, Shettima | Counting >1000 µm fraction | IRD Group 3 (HL% > IL%) |
| 15 | Ice rafted detritus, Shale | IRD Shale | #/cm3 | Bukar, Shettima | Counting >1000 µm fraction | |
| 16 | Ice rafted detritus, Sucrosic Dolomite | IRD Sucr Dolomite | #/cm3 | Bukar, Shettima | Counting >1000 µm fraction | |
| 17 | Ice rafted detritus, Shocked Quartz | IRD Shocked Quartz | #/cm3 | Bukar, Shettima | Counting >1000 µm fraction | |
| 18 | Ice rafted detritus, Hematite-coated quartz | IRD Hem Quartz | #/cm3 | Bukar, Shettima | Counting >1000 µm fraction | |
| 19 | Ice rafted detritus, Muscovite-Biotite Granite | IRD Ms-Bt Granite | #/cm3 | Bukar, Shettima | Counting >1000 µm fraction | |
| 20 | Ice rafted detritus, Ooid-bearing Dolomite | IRD Ooid Dolomite | #/cm3 | Bukar, Shettima | Counting >1000 µm fraction |
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:
3667 data points
Download Data (login required)
View dataset as HTML (shows only first 2000 rows)