Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
2025
|
| Subjects: | |
| Online Access: | https://doi.org/10.1594/PANGAEA.971732 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1867172202049175552 |
|---|---|
| author | Max, Lars von Dobeneck, Tilo Bukar, Shettima Mulitza, Stefan |
| author_facet | Max, Lars von Dobeneck, Tilo Bukar, Shettima Mulitza, Stefan |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | 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. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_971732 |
| institution | PANGAEA |
| language | en |
| publishDate | 2025 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Element ratio proxy records for dolomitic and granitic IRD content in sediment core GeoB18530-1 Max, Lars von Dobeneck, Tilo Bukar, Shettima Mulitza, Stefan 509-1; ArcTrain; Calcium/Silicon ratio; Calcium/Strontium ratio; DEPTH, sediment/rock; GC; GeoB18530-1; Geochemistry; grain size distribution; Grand Banks Margin; Gravity corer; Heinrich event; Heinrich events; Ice-Rafted Detritus; Iron/Silicon ratio; Maria S. Merian; MSM39; Potassium/Iron ratio; Potassium/Silicon ratio; Processes and impacts of climate change in the North Atlantic Ocean and the Canadian Arctic; rock magnetism; SE Grand Banks Slope; Strontium/Silicon ratio; X-ray fluorescence core scanner (XRF), Avaatech 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. |
| title | Element ratio proxy records for dolomitic and granitic IRD content in sediment core GeoB18530-1 |
| topic | 509-1; ArcTrain; Calcium/Silicon ratio; Calcium/Strontium ratio; DEPTH, sediment/rock; GC; GeoB18530-1; Geochemistry; grain size distribution; Grand Banks Margin; Gravity corer; Heinrich event; Heinrich events; Ice-Rafted Detritus; Iron/Silicon ratio; Maria S. Merian; MSM39; Potassium/Iron ratio; Potassium/Silicon ratio; Processes and impacts of climate change in the North Atlantic Ocean and the Canadian Arctic; rock magnetism; SE Grand Banks Slope; Strontium/Silicon ratio; X-ray fluorescence core scanner (XRF), Avaatech |
| url | https://doi.org/10.1594/PANGAEA.971732 |