Harning, David J; Jennings, Anne E; Köseoğlu, Denizcan; Belt, Simon T; Geirsdóttir, Áslaug; Sepúlveda, Julio (2021): Biomarker and foraminifera assemblage data from MD99-2269 and JR51-GC35, North Iceland Shelf [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.930277
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Abstract:
These data include highly-branched isoprenoids (IP25, HBI II, HBI III and HBI IV) and isoprenoid GDGTs from marine sediment cores MD99-2269 and JR51-GC35 from the North Iceland Shelf. Total lipids were extracted and purified following standard procedures on an ASE and using silica-gel columns, respectively. HBIs were then analyzed on GC-MS and GDGTs on HPLC-MS. Both records have age models derived from radiocarbon-dated molluscs and foraminifera that are published elsewhere, and the above lipid biomarker records cover the last 8000 years. Temporal resolution varies between multi-centennial to sub-centennial. From MD99-2269, data also include complete planktic and benthic foraminifera assemblages. Foraminifera were wet-picked from sediment subsamples. Using established transfer functions, we also present SST and BWT records derived from the planktic and benthic foraminifera assemblages, respectively. Planktic assemblage data cover the last 10000 years whereas benthic assemblage data only cover the last 8000 years. Temporal resolution varies between multi-centennial to sub-centennial. These data were collected in order to document the Holocene paleoceanography of the North Iceland Shelf. In other words, to study when Arctic/Polar versus Atlantic Waters bathed the region, how the temperatures of these currents changed, when and how sea ice was advected to the region, and how pelagic productivity was impacted by all these oceanographic variables.
Related to:
Harning, David J; Jennings, Anne E; Köseoğlu, Denizcan; Belt, Simon T; Geirsdóttir, Áslaug; Sepúlveda, Julio (2021): Response of biological productivity to North Atlantic marine front migration during the Holocene. Climate of the Past, 17(1), 379-396, https://doi.org/10.5194/cp-17-379-2021
Coverage:
Median Latitude: 66.820167 * Median Longitude: -19.412083 * South-bound Latitude: 66.641333 * West-bound Longitude: -20.863167 * North-bound Latitude: 66.999000 * East-bound Longitude: -17.961000
Date/Time Start: 1999-08-01T00:00:00 * Date/Time End: 1999-08-01T00:00:00
Minimum Elevation: -420.0 m * Maximum Elevation: -365.0 m
Event(s):
JR51GC-35 * Latitude: 66.999000 * Longitude: -17.961000 * Elevation: -420.0 m * Campaign: JR20000727 (JR51) * Basis: James Clark Ross * Method/Device: Piston corer (PC)
MD99-2269 (79US/Fr) * Latitude: 66.641333 * Longitude: -20.863167 * Date/Time: 1999-08-01T00:00:00 * Elevation: -365.0 m * Recovery: 25.44 m * Location: N.Iceland shelf, Reykjafjardarall * Campaign: MD114 (IMAGES V) * Basis: Marion Dufresne (1995) * Method/Device: Calypso Corer (CALYPSO)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | File content | Content | Harning, David J | |||
| 2 | Binary Object | Binary | Harning, David J | |||
| 3 | Binary Object (File Size) | Binary (Size) | Bytes | Harning, David J | ||
| 4 | Binary Object (Media Type) | Binary (Type) | Harning, David J |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Basic curation (CurationLevelB)
Size:
8 data points
Data
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| 1 Content | 2 Binary | 3 Binary (Size) [Bytes] | 4 Binary (Type) |
|---|---|---|---|
| Isoprenoid GDGTs of sediment core JR51-GC35 | JR51-GC35.GDGTs.xlsx | 13.5 kBytes | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
| Highly-branched isoprenoids of sediment core JR51-GC35 | JR51-GC35.HBIs.xlsx | 22.7 kBytes | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
| Isoprenoid GDGTs of sediment core MD99-2269 | MD99-2269.GDGTs.xlsx | 14.2 kBytes | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
| Complete planktic and benthic foraminifera assemblages of sediment core MD99-2269 | MD99-2269.foraminifera.xlsx | 100.1 kBytes | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |