Element ratio proxy records for dolomitic and granitic IRD content in sediment core GeoB18530-1

Because of its sensitivity for detrital dolomite, the Ca/Sr ratio of sediment core GeoB18530-1 was previously used to identify Heinrich Event layers (doi:10.1594/PANGAEA.943557 and doi:10.1594/PANGAEA.943556). As Ca/Sr is also influenced by marine sedimentation, the relative Ca/Si and Sr/Si variations given here allow assessing the detrital vs. marine carbonate mixing system. We newly introduce the K/Fe ratio as proxy for the volumetrically and magnetically very relevant granitic IRD deposition and support this interpretation by comparing K/Si and Fe/Si ratios. The element data presented here were acquired with the MARUM Aavatech XRF Scanner at acceleration voltages of 10 kV, 30 kV and 50 kV (Max et al., 2022). All six element ratios, which were initially scaled in peak area units, have been normalized to their interlayer means in order to facilitate the quantitative unmixing of HL-related and -unrelated sediment fractions. The magnetic susceptibility estimate derived by multiple regression from Ca/Sr and K/Fe ratios is contained in the model data set doi:10.1594/PANGAEA.971771.

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Max, Lars, von Dobeneck, Tilo, Bukar, Shettima, Mulitza, Stefan (2024). Dataset: Element ratio proxy records for dolomitic and granitic IRD content in sediment core GeoB18530-1. https://doi.org/10.1594/PANGAEA.971732

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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.971732
Author Max, Lars
Given Name Lars
Family Name Max
More Authors
von Dobeneck, Tilo
Bukar, Shettima
Mulitza, Stefan
Resource Type text/tab-separated-values - filename: GeoB18530-1_element_ratio_proxy
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 II: Magnetic Properties
Type: DOI
Relation: References
Source: Geochemistry, Geophysics, Geosystems
Authors: Bukar Shettima , von Dobeneck Tilo , Wang Yiyun , Frederichs Thomas , Dallanave Edoardo , St-Onge Guillaume , von Dobeneck Tilo , Bukar Shettima , Bukar Shettima , von Dobeneck Tilo .

Title: Petrological classification and lithology-specific abundance analysis of ice-rafted detritus (IRD) of sediment core GeoB18530-1
Identifier: https://doi.pangaea.de/10.1594/PANGAEA.971290
Type: DOI
Relation: References
Authors: Bukar Shettima , von Dobeneck Tilo , Wang Yiyun , Frederichs Thomas , Dallanave Edoardo , St-Onge Guillaume , von Dobeneck Tilo , Bukar Shettima , Bukar Shettima , von Dobeneck Tilo .

Title: Grain-size distribution and grain-size dependent magnetic susceptibility of sediment core GeoB18530-1
Identifier: https://doi.pangaea.de/10.1594/PANGAEA.971771
Type: DOI
Relation: References
Authors: Bukar Shettima , von Dobeneck Tilo , Wang Yiyun , Frederichs Thomas , Dallanave Edoardo , St-Onge Guillaume , von Dobeneck Tilo , Bukar Shettima , Bukar Shettima , von Dobeneck Tilo .