Ice rafted debris flux and composition of sediment core PS93/025
IRD flux and the corresponding petrographic grain composition. The sampled sediment record PS93/025, consisting of the Giant box core (GKG) PS93/025-1 (80.481°N, 8.487°W, 291.3 m water depth) and the Kastenlot core (KAL) PS93/025-2 (80.482°N, 8.490°W, 290.2 m water depth), was obtained during the ex...
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ftdatacite:10.1594/pangaea.923852 2023-05-15T15:11:05+02:00 Ice rafted debris flux and composition of sediment core PS93/025 Zehnich, Marc 2020 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.923852 https://doi.pangaea.de/10.1594/PANGAEA.923852 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1177/0959683620950393 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Arctic Fram Strait Greenland IRD Event label DEPTH, sediment/rock AGE Ice rafted debris, flux Ice rafted debris, rounded Limestones and Dolomites Crystalline rocks, Quartz and Feldspar Volcanic rocks and mafic minerals Clastic sedimentary rocks Giant box corer Kasten corer PS93.1 Polarstern Dataset dataset 2020 ftdatacite https://doi.org/10.1594/pangaea.923852 https://doi.org/10.1177/0959683620950393 2022-02-09T13:54:01Z IRD flux and the corresponding petrographic grain composition. The sampled sediment record PS93/025, consisting of the Giant box core (GKG) PS93/025-1 (80.481°N, 8.487°W, 291.3 m water depth) and the Kastenlot core (KAL) PS93/025-2 (80.482°N, 8.490°W, 290.2 m water depth), was obtained during the expedition PS93.1 (2015) (Stein, 2016) of RV Polarstern on the outermost NE Greenland shelf in the western Fram Strait. The presented data covers the last ca. 10.6 ka. Ice-rafted debris counts were performed on the >150 μm fraction at steps of 5 cm. The results are expressed as flux rates (grains/cm2*ka). Additionally, the corresponding petrographic grain composition was analyzed to determine the source area(s) of these lithic particles by using the following groups: (a) clastic sedimentary rocks (e.g. siltstones); (b) metamorphic rocks (e.g. quartzites), volcanic rocks (e.g. basalt), olivine grains, volcanic glass shards, mica; (c) crystalline rocks, quartz and feldspar; (d) limestones and dolomites. Rounded grains were specified following St John et al. (2015) to identify the influence of sea-ice sediments. In this study, grains with subrounded and rounded shape were counted and grouped as "rounded." Aim of the study was to reconstruct the climatic and paleoceanographic variability offshore Northeast Greenland during the last ca. 10ka with multidecadal resolution. Dataset Arctic Fram Strait Greenland Sea ice DataCite Metadata Store (German National Library of Science and Technology) Arctic Greenland |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Arctic Fram Strait Greenland IRD Event label DEPTH, sediment/rock AGE Ice rafted debris, flux Ice rafted debris, rounded Limestones and Dolomites Crystalline rocks, Quartz and Feldspar Volcanic rocks and mafic minerals Clastic sedimentary rocks Giant box corer Kasten corer PS93.1 Polarstern |
spellingShingle |
Arctic Fram Strait Greenland IRD Event label DEPTH, sediment/rock AGE Ice rafted debris, flux Ice rafted debris, rounded Limestones and Dolomites Crystalline rocks, Quartz and Feldspar Volcanic rocks and mafic minerals Clastic sedimentary rocks Giant box corer Kasten corer PS93.1 Polarstern Zehnich, Marc Ice rafted debris flux and composition of sediment core PS93/025 |
topic_facet |
Arctic Fram Strait Greenland IRD Event label DEPTH, sediment/rock AGE Ice rafted debris, flux Ice rafted debris, rounded Limestones and Dolomites Crystalline rocks, Quartz and Feldspar Volcanic rocks and mafic minerals Clastic sedimentary rocks Giant box corer Kasten corer PS93.1 Polarstern |
description |
IRD flux and the corresponding petrographic grain composition. The sampled sediment record PS93/025, consisting of the Giant box core (GKG) PS93/025-1 (80.481°N, 8.487°W, 291.3 m water depth) and the Kastenlot core (KAL) PS93/025-2 (80.482°N, 8.490°W, 290.2 m water depth), was obtained during the expedition PS93.1 (2015) (Stein, 2016) of RV Polarstern on the outermost NE Greenland shelf in the western Fram Strait. The presented data covers the last ca. 10.6 ka. Ice-rafted debris counts were performed on the >150 μm fraction at steps of 5 cm. The results are expressed as flux rates (grains/cm2*ka). Additionally, the corresponding petrographic grain composition was analyzed to determine the source area(s) of these lithic particles by using the following groups: (a) clastic sedimentary rocks (e.g. siltstones); (b) metamorphic rocks (e.g. quartzites), volcanic rocks (e.g. basalt), olivine grains, volcanic glass shards, mica; (c) crystalline rocks, quartz and feldspar; (d) limestones and dolomites. Rounded grains were specified following St John et al. (2015) to identify the influence of sea-ice sediments. In this study, grains with subrounded and rounded shape were counted and grouped as "rounded." Aim of the study was to reconstruct the climatic and paleoceanographic variability offshore Northeast Greenland during the last ca. 10ka with multidecadal resolution. |
format |
Dataset |
author |
Zehnich, Marc |
author_facet |
Zehnich, Marc |
author_sort |
Zehnich, Marc |
title |
Ice rafted debris flux and composition of sediment core PS93/025 |
title_short |
Ice rafted debris flux and composition of sediment core PS93/025 |
title_full |
Ice rafted debris flux and composition of sediment core PS93/025 |
title_fullStr |
Ice rafted debris flux and composition of sediment core PS93/025 |
title_full_unstemmed |
Ice rafted debris flux and composition of sediment core PS93/025 |
title_sort |
ice rafted debris flux and composition of sediment core ps93/025 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2020 |
url |
https://dx.doi.org/10.1594/pangaea.923852 https://doi.pangaea.de/10.1594/PANGAEA.923852 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Fram Strait Greenland Sea ice |
genre_facet |
Arctic Fram Strait Greenland Sea ice |
op_relation |
https://dx.doi.org/10.1177/0959683620950393 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.923852 https://doi.org/10.1177/0959683620950393 |
_version_ |
1766342000913678336 |