Ebner, Berenice; Henkel, Susann; Kraal, Peter; Müller, Daniel; Köster, Male; Staubwasser, Michael; Laufer-Meiser, Katja; Kattein, Laura; Geibert, Walter; Kasten, Sabine (2025): Solid phase data of surface sediments retrieved from two fjords in South Georgia, sub-Antarctica [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.986661, In: Ebner, B et al. (2025): Oxygen profiles, pore-water- and solid phase data of surface sediments retrieved from two fjords in South Georgia, sub-Antarctica [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.986658
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Published: 2025-10-30 • DOI registered: 2025-11-28
Abstract:
During the PS133/2 research cruise with the German research vessel RV Polarstern in the austral summer of November and December 2022 into the Southern Ocean, sediment samples were collected using a multicorer at five stations and a handheld gravity corer (UWITEC) from a zodiac at two additional stations across two fjords in South Georgia: King Haakon Bay and Cumberland Bay. The main objective was to determine and quantify the different sources and transport pathways of iron from two fjords of South Georgia into the open ocean. For the determination of an age model and the porosity, at five stations excess 210Pb (210PbXS) was measured using freeze-dried sediment samples. At six stations 0.5 M HCl extractions were performed to determine the 0.5 M HCl-extractable Fe(III)s (bound in poorly crystalline Fe-oxides) and Fe(II)s (bound in acid volatile sulfide). Samples of the same stations were used to obtain sulfate reduction rates (SRR).
Keyword(s):
Related to:
Ebner, Berenice; et al. (submitted): Drivers of benthic iron fluxes and the pore-water iron isotopic signature in sub-Antarctic surface fjord sediments.
Coverage:
Median Latitude: -54.245561 * Median Longitude: -36.746392 * South-bound Latitude: -54.401117 * West-bound Longitude: -37.567900 * North-bound Latitude: -54.065333 * East-bound Longitude: -36.142567
Date/Time Start: 2022-11-28T22:16:15 * Date/Time End: 2022-12-07T23:33:35
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 0.385 m
Event(s):
PS133/2_17-11 * Latitude: -54.401110 * Longitude: -37.567181 * Date/Time: 2022-11-28T22:16:15 * Elevation: -342.8 m * O2A Registry URI: https://registry.o2a-data.de/items/3232 * Location: South Atlantic Ocean * Campaign: PS133/2 (Island Impact) * Basis: Polarstern * Method/Device: MultiCorer (MUC)
PS133/2_23-9 * Latitude: -54.159315 * Longitude: -37.386819 * Date/Time: 2022-11-30T00:25:05 * Elevation: -153.6 m * O2A Registry URI: https://registry.o2a-data.de/items/3232 * Location: South Atlantic Ocean * Campaign: PS133/2 (Island Impact) * Basis: Polarstern * Method/Device: MultiCorer (MUC)
PS133/2_35-6 * Latitude: -54.345688 * Longitude: -36.378455 * Date/Time: 2022-12-03T18:48:06 * Elevation: -160.5 m * O2A Registry URI: https://registry.o2a-data.de/items/3232 * Location: South Atlantic Ocean * Campaign: PS133/2 (Island Impact) * Basis: Polarstern * Method/Device: MultiCorer (MUC)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Ebner, Berenice | |||
| 2 | Station label | Station | Ebner, Berenice | |||
| 3 | Gear | Gear | Ebner, Berenice | Device | ||
| 4 | Sample code/label | Sample label | Ebner, Berenice | Sample label | ||
| 5 | Identification | ID | Ebner, Berenice | GearID | ||
| 6 | LATITUDE | Latitude | Ebner, Berenice | Geocode | ||
| 7 | LONGITUDE | Longitude | Ebner, Berenice | Geocode | ||
| 8 | DATE/TIME | Date/Time | Ebner, Berenice | Geocode | ||
| 9 | Depth, bathymetric | Bathy depth | m | Ebner, Berenice | ||
| 10 | DEPTH, sediment/rock | Depth sed | m | Ebner, Berenice | Geocode | |
| 11 | Lead-210 excess | 210Pb xs | Bq/kg | Ebner, Berenice | Gamma spectrometer, Canberra, HPGe detector | |
| 12 | Porosity | Poros | % vol | Ebner, Berenice | ||
| 13 | Carbon, organic, total | TOC | % | Ebner, Berenice | Elemental analyzer, LECO, CS744 | wt.%; measured at the Faculty of Geoscience, University of bremen |
| 14 | Iron II, ferrous iron | Fe(II) | % | Ebner, Berenice | 0.5M HCl extraction | Fe(II)s [wt.%]: bound in acid volatile sulfide |
| 15 | Iron III, ferric iron | Fe(III) | % | Ebner, Berenice | 0.5M HCl extraction | Fe(III)s [wt.%]: 0.5 M HCl-extractable, bound in poorly crystalline Fe-oxides |
| 16 | Sulfate reduction rate | SRR | nmol/cm3/day | Ebner, Berenice | Whole-core injection method |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1540 data points