Lithology-specific IRD counts of sediment core GeoB18530-1

DOI

Total and lithology-specific ice-rafted detritus (IRD) counts of sediment core GeoB18530-1 were determined by stereomicroscopically identifying, picking and counting all recognizable IRD grains from the > 1mm dry sieve fraction, which had been obtained from the 125 µm wet sieve fraction of 10 cm^3 ultrasonically dispersed sediment (10 ml syringe sample). Total IRD counts vary between 1 and 300 grains per sample, i.e. 0.1 to 3 IRD grains/cm^3. The IRD lithologies were initially sorted by their physical properties including color, hardness, cleavage, grain size, and texture. Based on these stereomicroscopic observations, we devised a new (and evolving) IRD classification scheme of rocks and rock-forming minerals that was validated and refined by SEM and thin section analysis of the largest observed IRD particles (dropstones). Digital micrographs and thin sections of each classified IRD lithology are presented in dataset (https://doi.pangaea.de/10.1594/PANGAEA.971268).

Corresponds to Figure 4.

Identifier
DOI https://doi.pangaea.de/10.1594/PANGAEA.971280
Related Identifier IsPartOf https://doi.pangaea.de/10.1594/PANGAEA.971290
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.971280
Provenance
Creator Bukar, Shettima ORCID logo; Lisker, Frank ORCID logo; von Dobeneck, Tilo ORCID logo; Mulitza, Stefan ORCID logo
Publisher PANGAEA
Publication Year 2024
Funding Reference German Research Foundation https://doi.org/10.13039/501100001659 Crossref Funder ID 221211316 https://gepris.dfg.de/gepris/projekt/221211316 GRK/IRTG 1904: ArcTrain - Processes and impacts of climate change in the North Atlantic Ocean and the Canadian Arctic; Petroleum Technology Development Fund https://doi.org/10.13039/501100009614 Crossref Funder ID Shettima Bukar Overseas postgraduate scholarship to Shettima Bukar
Rights Creative Commons Attribution 4.0 International; Data access is restricted (moratorium, sensitive data, license constraints); https://creativecommons.org/licenses/by/4.0/
OpenAccess false
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 5250 data points
Discipline Earth System Research
Spatial Coverage (-49.235 LON, 42.840 LAT); SE Grand Banks Slope