von Dobeneck, Tilo; Bukar, Shettima: Principal Component Analysis (PCA) of IRD content in Heinrich Event layers (H1-H6) and interlayers (I1-I5) of sediment core GeoB18530-1 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.971287 (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:
The data matrix of 192 classified IRD count data from H1-H6 and I1-I5 (excluding I6 because of too low IRD counts) by 22 IRD lithologies (https://doi.pangaea.de/10.1594/PANGAEA.971280) was row-normalized to 100% to give equal weight to all IRD assemblages independently of their specific IRD abundance, but not column-normalized in order to limit the influence of rare, statistically less relevant IRD lithologies. A Principal Component Analysis (PCA) of this data set reveales well interpretable PCA scores and disparate loadings for the first 5 PCA axes. PC1 reflects the contribution of Ooid-bearing Dolomite IRD, PC2 discriminates Muscovite-Biotite Granite IRD from other silicious IRD species, PC3 delineates Shale IRD vs. Hematite-stained Quartz IRD variability, PC4 quantifies Sucrosic Dolomite IRD and PC5 Microcline IRD percentage. We provide Heinrich layer and interlayer affiliations of all PCA scores, which some PC axes separate well, in particular PC1.
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
Further details:
Bukar, Shettima; Lisker, Frank; von Dobeneck, Tilo; Mulitza, Stefan: Lithology-specific IRD counts of sediment core GeoB18530-1 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.971280
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: 5.670 m * Maximum DEPTH, sediment/rock: 10.050 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 10.
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 | in [%] | ||
| 3 | Principal component 1 | PC1 | Score | von Dobeneck, Tilo | Multivariate statistical analysis | in [%] |
| 4 | Principal component 2 | PC2 | Score | von Dobeneck, Tilo | Multivariate statistical analysis | in [%] |
| 5 | Principal component 3 | PC3 | Score | von Dobeneck, Tilo | Multivariate statistical analysis | in [%] |
| 6 | Principal component 4 | PC4 | Score | von Dobeneck, Tilo | Multivariate statistical analysis | in [%] |
| 7 | Principal component 5 | PC5 | Score | von Dobeneck, Tilo | Multivariate statistical analysis | in [%] |
| 8 | Lithology/composition/facies | Lithology | Bukar, Shettima | Stereo microscope, Zeiss, Stemi | Identifiable IRD lithologies | |
| 9 | Principal component 1 | PC1 | Loading | von Dobeneck, Tilo | Multivariate statistical analysis | |
| 10 | Principal component 2 | PC2 | Loading | von Dobeneck, Tilo | Multivariate statistical analysis | |
| 11 | Principal component 3 | PC3 | Loading | von Dobeneck, Tilo | Multivariate statistical analysis | |
| 12 | Principal component 4 | PC4 | Loading | von Dobeneck, Tilo | Multivariate statistical analysis | |
| 13 | Principal component 5 | PC5 | Loading | von Dobeneck, Tilo | Multivariate statistical analysis |
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:
1272 data points