de.pangaea.dataset982609 und dataset PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact 2026-04-29T17:26:04Z https://doi.pangaea.de/10.1594/PANGAEA.982609 <gco:CharacterString>The highly branched isoprenoid and the open-water phytoplankton biomarker analysis of sediment core SL170 from Baffin Bay</gco:CharacterString> 2025-11-13T09:30:44 publication https://doi.org/10.1594/PANGAEA.982609 You, Defang
defang.you@geow.uni-heidelberg.de
https://orcid.org/0000-0001-8835-3254 information author Stein, Ruediger
ru_st@uni-bremen.de
https://orcid.org/0000-0002-4453-9564 information author Lohmann, Gerrit
gerrit.lohmann@awi.de
https://orcid.org/0000-0003-2089-733X information author Masoum, Ahmadreza
ahmadreza.masoum@awi.de
author Fahl, Kirsten
kirsten.fahl@awi.de
https://orcid.org/0000-0001-9317-4656 information author Wu, Junjie
junjie.wu@awi.de
https://orcid.org/0000-0001-7618-6989 information author Jackson, Rebecca
rjackson@marum.de
https://orcid.org/0000-0002-0861-3173 information author PANGAEA
info@pangaea.de
https://www.pangaea.de/ information publisher tableDigital This dataset presents biomarker records from sediment core SL170 (MSM09/02-0455/13; 68°58.15′ N, 59°23.58′ W; 1078 m water depth), recovered from eastern Baffin Bay during the MSM09/02 expedition of R/V Maria S. Merian. The highly branched isoprenoid (IP25) and the open-water phytoplankton biomarker (dinosterol) were analysed to reconstruct past sea ice algal productivity and primary production, respectively, covering the period from ~17,000 to 10,000 years BP. The PDIP25 index was further calculated to provide semi-quantitative estimates of past sea ice cover. Biomarker analyses were carried out at the Alfred Wegener Institute, Bremerhaven. completed You, Defang
defang.you@geow.uni-heidelberg.de
https://orcid.org/0000-0001-8835-3254 information principalInvestigator Baffin Bay Biomarkers Primary production Sea ice theme <gco:CharacterString>PANGAEA Keyword List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation -59.393 -59.393 68.9692 68.9692 2008-09-05T10:13:00 2008-09-05T10:13:00 0.005 6.765 This dataset includes concentrations of IP25 and dinosterol from sediment core SL170 (Baffin Bay), covering the period from 17,000 to 10,000 years BP. IP25 concentrations reflect sea ice algal productivity, while dinosterol serves as an indicator of open-water phytoplankton productivity. Based on these biomarker concentrations, the PDIP25 index was calculated to provide semi-quantitative estimates of past sea ice cover. For intervals in which either the IP25 or the dinosterol levels are zero or very low, the PDIP25 values are indeterminable and are not displayed in the data set. DEPTH, sediment/rock physicalMeasurement m m AGE physicalMeasurement ka BP ka BP 2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane, per unit mass total organic carbon physicalMeasurement Gas chromatography - Mass spectrometry (GC-MS) µg/g µg/g 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol, per unit mass total organic carbon physicalMeasurement Gas chromatography - Mass spectrometry (GC-MS) µg/g µg/g Phytoplankton biomarker Dinosterol IP25 index thematicClassification Calculated text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.982609?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: MSM09/2_455-13 (GeoTü SL 170) * LATITUDE: 68.969200 * LONGITUDE: -59.393000 * DATE/TIME: 2008-09-05T10:13:00 * ELEVATION: -1091.0 m * LOCATION: Davis Strait * CAMPAIGN: MSM09/2 * BASIS: Maria S. Merian * METHOD/DEVICE: Gravity corer rope length max. 1114m 2008-09-05T10:13:00 Supplement to <gco:CharacterString>Surface freshening in the subpolar North Atlantic sustaining the weakened AMOC during the late Younger Dryas</gco:CharacterString> 2026-01-01 publication https://doi.org/10.1126/sciadv.adv6220 You, Defang
defang.you@geow.uni-heidelberg.de
https://orcid.org/0000-0001-8835-3254 information author Stein, Ruediger
ru_st@uni-bremen.de
https://orcid.org/0000-0002-4453-9564 information author Lohmann, Gerrit
gerrit.lohmann@awi.de
https://orcid.org/0000-0003-2089-733X information author Masoum, Ahmadreza
ahmadreza.masoum@awi.de
author Fahl, Kirsten
kirsten.fahl@awi.de
https://orcid.org/0000-0001-9317-4656 information author Wu, Junjie
junjie.wu@awi.de
https://orcid.org/0000-0001-7618-6989 information author Jackson, Rebecca
rjackson@marum.de
https://orcid.org/0000-0002-0861-3173 information author documentDigital Science Advances 12(1) eadv6220