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Principal Component Analysis (PCA) of IRD content in Heinrich Event layers (H1-H6) and interlayers (I1-I5) of sediment core GeoB18530-1

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.

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von Dobeneck, Tilo, Bukar, Shettima (2024). Dataset: Principal Component Analysis (PCA) of IRD content in Heinrich Event layers (H1-H6) and interlayers (I1-I5) of sediment core GeoB18530-1. https://doi.org/10.1594/PANGAEA.971287

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Additional Info

Field Value
Imported on November 29, 2024
Last update December 1, 2024
License CC-BY-4.0
Source https://doi.pangaea.de/10.1594/PANGAEA.971287
Author von Dobeneck, Tilo
Given Name Tilo
Family Name von Dobeneck
More Authors
Bukar, Shettima
Resource Type text/tab-separated-values - filename: GeoB18530-1_PCA
Subject Areas
Name: Chemistry

Name: Geophysics

Name: Lithosphere

Related Identifiers
Title: Ice-Rafted Detritus (IRD) of the SE Grand Banks Slope, Newfoundland, Throughout Heinrich Layers 1 to 6 - Part I: Petrology and Abundance
Type: DOI
Relation: References
Source: Geochemistry, Geophysics, Geosystems
Authors: Bukar Shettima , Lisker Frank , von Dobeneck Tilo , Max Lars , Wang Yiyun , Lenz Marlene M , Mulitza Stefan , St-Onge Guillaume , Piper David , Bukar Shettima , Lisker Frank , von Dobeneck Tilo , Mulitza Stefan .

Title: Lithology-specific IRD counts of sediment core GeoB18530-1
Identifier: https://doi.pangaea.de/10.1594/PANGAEA.971280
Type: DOI
Relation: References
Authors: Bukar Shettima , Lisker Frank , von Dobeneck Tilo , Max Lars , Wang Yiyun , Lenz Marlene M , Mulitza Stefan , St-Onge Guillaume , Piper David , Bukar Shettima , Lisker Frank , von Dobeneck Tilo , Mulitza Stefan .