Geochemical biomarker analyses on sediment cores MSM05/03_343310-5-1 and MSM05/03_343310-2-2 from Disko Bugt, West Greenland
Past sea ice conditions and open water phytoplankton production were reconstructed from a sediment core taken in Disko Bugt, West Greenland, using the sea ice biomarker IP~25~ and other specific phytoplankton biomarker (i.e., brassicasterol, dinosterol, HBI III) records. Our biomarker record indicat...
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ftdatacite:10.1594/pangaea.885107 2023-05-15T16:01:05+02:00 Geochemical biomarker analyses on sediment cores MSM05/03_343310-5-1 and MSM05/03_343310-2-2 from Disko Bugt, West Greenland Kolling, Henriette Marie Stein, Ruediger Fahl, Kirsten Perner, Kerstin Moros, Matthias 2018 application/zip https://dx.doi.org/10.1594/pangaea.885107 https://doi.pangaea.de/10.1594/PANGAEA.885107 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1007/s41063-018-0045-z Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo Collection article Collection of Datasets 2018 ftdatacite https://doi.org/10.1594/pangaea.885107 https://doi.org/10.1007/s41063-018-0045-z 2021-11-05T12:55:41Z Past sea ice conditions and open water phytoplankton production were reconstructed from a sediment core taken in Disko Bugt, West Greenland, using the sea ice biomarker IP~25~ and other specific phytoplankton biomarker (i.e., brassicasterol, dinosterol, HBI III) records. Our biomarker record indicates that Disko Bugt experienced a gradual expansion of seasonal sea ice during the last 2.2 kyr. Maximum sea ice extent was reached during the Little Ice Age around 0.2 kyr BP. Superimposed on this longer term trend, we find short-term oscillations in open water primary production and terrigenous input, which may be related to the Atlantic Multidecadal Oscillation and solar activity changes as potential climatic trigger mechanisms. A direct sample-to-sample multiproxy comparison of our new biomarker record with microfossil (i.e., benthic foraminifera, dinocysts, and diatoms) and other geochemical records (i.e., alkenone biomarkers) indicates that different proxies are influenced by the complex environmental system with pronounced seasonal changes and strong oceanographic gradients, e.g., freshwater inflow from the Greenland Ice Sheet. Differences in sea ice reconstructions may indicate that the IP~25~ record reflects only the relatively short sea ice season (spring), whereas other microfossil reconstructions may reflect a longer (spring–autumn) interval. Article in Journal/Newspaper Disko bugt Greenland Ice Sheet Sea ice DataCite Metadata Store (German National Library of Science and Technology) Greenland |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo |
spellingShingle |
Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo Kolling, Henriette Marie Stein, Ruediger Fahl, Kirsten Perner, Kerstin Moros, Matthias Geochemical biomarker analyses on sediment cores MSM05/03_343310-5-1 and MSM05/03_343310-2-2 from Disko Bugt, West Greenland |
topic_facet |
Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo |
description |
Past sea ice conditions and open water phytoplankton production were reconstructed from a sediment core taken in Disko Bugt, West Greenland, using the sea ice biomarker IP~25~ and other specific phytoplankton biomarker (i.e., brassicasterol, dinosterol, HBI III) records. Our biomarker record indicates that Disko Bugt experienced a gradual expansion of seasonal sea ice during the last 2.2 kyr. Maximum sea ice extent was reached during the Little Ice Age around 0.2 kyr BP. Superimposed on this longer term trend, we find short-term oscillations in open water primary production and terrigenous input, which may be related to the Atlantic Multidecadal Oscillation and solar activity changes as potential climatic trigger mechanisms. A direct sample-to-sample multiproxy comparison of our new biomarker record with microfossil (i.e., benthic foraminifera, dinocysts, and diatoms) and other geochemical records (i.e., alkenone biomarkers) indicates that different proxies are influenced by the complex environmental system with pronounced seasonal changes and strong oceanographic gradients, e.g., freshwater inflow from the Greenland Ice Sheet. Differences in sea ice reconstructions may indicate that the IP~25~ record reflects only the relatively short sea ice season (spring), whereas other microfossil reconstructions may reflect a longer (spring–autumn) interval. |
format |
Article in Journal/Newspaper |
author |
Kolling, Henriette Marie Stein, Ruediger Fahl, Kirsten Perner, Kerstin Moros, Matthias |
author_facet |
Kolling, Henriette Marie Stein, Ruediger Fahl, Kirsten Perner, Kerstin Moros, Matthias |
author_sort |
Kolling, Henriette Marie |
title |
Geochemical biomarker analyses on sediment cores MSM05/03_343310-5-1 and MSM05/03_343310-2-2 from Disko Bugt, West Greenland |
title_short |
Geochemical biomarker analyses on sediment cores MSM05/03_343310-5-1 and MSM05/03_343310-2-2 from Disko Bugt, West Greenland |
title_full |
Geochemical biomarker analyses on sediment cores MSM05/03_343310-5-1 and MSM05/03_343310-2-2 from Disko Bugt, West Greenland |
title_fullStr |
Geochemical biomarker analyses on sediment cores MSM05/03_343310-5-1 and MSM05/03_343310-2-2 from Disko Bugt, West Greenland |
title_full_unstemmed |
Geochemical biomarker analyses on sediment cores MSM05/03_343310-5-1 and MSM05/03_343310-2-2 from Disko Bugt, West Greenland |
title_sort |
geochemical biomarker analyses on sediment cores msm05/03_343310-5-1 and msm05/03_343310-2-2 from disko bugt, west greenland |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2018 |
url |
https://dx.doi.org/10.1594/pangaea.885107 https://doi.pangaea.de/10.1594/PANGAEA.885107 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Disko bugt Greenland Ice Sheet Sea ice |
genre_facet |
Disko bugt Greenland Ice Sheet Sea ice |
op_relation |
https://dx.doi.org/10.1007/s41063-018-0045-z |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.885107 https://doi.org/10.1007/s41063-018-0045-z |
_version_ |
1766397090758393856 |