Nürnberg, Dirk; Gehre, Nadine; Fessler, Sebastian; Reissig, Stefan (2025): Stable carbon and oxygen isotopes and element ratios of planktic foraminifer Globigerinoides sacculifer from sediment core M80/3_43 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.974869
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Published: 2025-02-03 • DOI registered: 2025-03-04
Abstract:
The subtropical Atlantic is affected by the Atlantic Meridional Mode (AMM) with its interannual and decadal impact on the rain intensity in Brazil and the Sahel zone as well as on hurricane activities in the Atlantic. The upwelling of cold water in the region of the Guinea Dome is also closely linked to the AMM dynamics. We here reconstruct the development of the Guinea Dome over the last two glacial/interglacial transitions (~156 kyrs). Our studies are based on gravity core M80/3-43, which was recovered from 4426 m water depth from the Cape Verde Archipelago area (southwest of Brava; 14°38.001'N 25°30.102'W) during the RV Meteor cruise M80/3 (URI:https://www.ldf.uni-hamburg.de/meteor/wochenberichte/wochenberichte-meteor/m80/m80-3-scr.pdf). The age model based on benthic foraminiferal oxygen stable isotopes (δ18O) and AMS radiocarbon dating is published by Eisele et al. (2015; https://doi.org/10.1016/j.margeo.2015.09.006). We use a planktonic foraminiferal multi-species isotope/geochemistry approach, combining high-resolution stable isotope (δ18O, δ13C) time series with elemental geochemistry (Mg/Ca), in order to address the surface to subsurface temperature and salinity development in relation to local upwelling phenomena and aftereffects on the NW African climate.
Related to:
Eisele, Stefan; Reissig, Stefan; Freundt, Armin; Kutterolf, Steffen; Nürnberg, Dirk; Wang, Kuo-Lung; Kwasnitschka, Tom (2015): Pleistocene to Holocene offshore tephrostratigraphy of highly explosive eruptions from the southwestern Cape Verde Archipelago. Marine Geology, 369, 233-250, https://doi.org/10.1016/j.margeo.2015.09.006
Nürnberg, Dirk; Riff, Tabitha; Bahr, André; Karas, Cyrus; Meier, Karl J F; Lippold, Jörg (2021): Western boundary current in relation to Atlantic Subtropical Gyre dynamics during abrupt glacial climate fluctuations. Global and Planetary Change, 201, 103497, https://doi.org/10.1016/j.gloplacha.2021.103497
Funding:
Coverage:
Latitude: 14.633330 * Longitude: -25.501670
Date/Time Start: 2010-01-11T11:27:00 * Date/Time End: 2010-01-11T11:27:00
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 5.325 m
Event(s):
M80/3_43 * Latitude: 14.633330 * Longitude: -25.501670 * Date/Time: 2010-01-11T11:27:00 * Elevation: -4427.7 m * IGSN: https://doi.org/10.58031/KIEL0160GEJM101 * Location: Cape Verde * Campaign: M80/3 * Basis: Meteor (1986) * Method/Device: Gravity corer (GC)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Eisele, Stefan | Geocode – Eisele et al. 2015 | |
| 2 | AGE | Age | ka BP | Eisele, Stefan | Geocode – Eisele et al. 2015; Benthic oxygen isotope stratigraphy and AMS-radiocarbon dating | |
| 3 | Globigerinoides sacculifer, δ13C | G. sacculifer δ13C | ‰ PDB | Nürnberg, Dirk | VPDB; Method Nürnberg et al. 2021 | |
| 4 | Globigerinoides sacculifer, δ18O | G. sacculifer δ18O | ‰ PDB | Nürnberg, Dirk | VPDB; Method Nürnberg et al. 2021 | |
| 5 | Globigerinoides sacculifer, Magnesium/Calcium ratio | G. sacculifer Mg/Ca | mmol/mol | Nürnberg, Dirk | Method Nürnberg et al. 2021 | |
| 6 | Globigerinoides sacculifer, Strontium/Calcium ratio | G. sacculifer Sr/Ca | mmol/mol | Nürnberg, Dirk | Method Nürnberg et al. 2021 | |
| 7 | Globigerinoides sacculifer, Manganese/Calcium ratio | G. sacculifer Mn/Ca | mmol/mol | Nürnberg, Dirk | Method Nürnberg et al. 2021 | |
| 8 | Globigerinoides sacculifer, Aluminium/Calcium ratio | G. sacculifer Al/Ca | mmol/mol | Nürnberg, Dirk | Method Nürnberg et al. 2021 | |
| 9 | Globigerinoides sacculifer, Iron/Calcium ratio | G. sacculifer Fe/Ca | mmol/mol | Nürnberg, Dirk | Method Nürnberg et al. 2021 |
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:
1629 data points