Nürnberg, Dirk; Gehre, Nadine; Fessler, Sebastian (2025): Stable carbon and oxygen isotopes and element ratios of planktic foraminifer Globigerinoides ruber (white) from sediment core M78/1_181-3 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.975157
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Published: 2025-02-17 • DOI registered: 2025-03-18
Abstract:
The Mississippi River discharge effectively shaped the dynamics of the Loop Current in the Gulf of Mexico during transient climates and interglacials, and reacted in response to changes in sea level and atmospheric circulation. We here provide proxydata records from piston core M78/1-181-3 PC. The ~12 m-long core was recovered from the Mississippi-Alabama shelf very close to and southeast of the recent Mississippi delta (29°00.00'N 88°20.00'W) from 804 m water depth during R/V Meteor Cruise M78/1 in 2009 (doi:10.2312/cr_m78_1). The proxyrecords cover the last ~42 kyrs at centennial resolution. Planktic stable oxygen (δ18O, ‰ VPDB) and carbon isotope analyses (δ13C; ‰ VPDB) as well as elemental analyses were performed on the shallow-dwelling foraminiferal species Globigerinoides ruber (white). Sampling and analytical studies were carried out from 3 cm to 1220 cm core depth at ~5 cm spatial resolution. The stable isotope analyses were run on a Thermo Scientific MAT 253 mass spectrometer with an automated Kiel IV Carbonate Preparation Device at GEOMAR according to standard procedures (c.f. Nürnberg et al., 2008). The element/Ca ratios (Mg/Ca, Sr/Ca, Al/Ca, Fe/Ca, Mn/Ca) were determined on a VARIAN ICP-OES according to Nürnberg et al. (2008). The proxy data provide information on the surface water temperature and salinity development.
Related to:
Kujau, Ariane; Nürnberg, Dirk; Zielhofer, Christoph; Bahr, André; Röhl, Ursula (2010): Mississippi River discharge over the last ~560,000 years -- Indications from X-ray fluorescence core-scanning. Palaeogeography, Palaeoclimatology, Palaeoecology, 298, 311-318, https://doi.org/10.1016/j.palaeo.2010.10.005
Nürnberg, Dirk; Bahr, André; Mildner, Tanja; Eden, Carsten (2015): Loop Current Variability—Its Relation to Meridional Overturning Circulation and the Impact of Mississippi Discharge. In: Schulz, M, Paul, A (eds.), Integrated Analysis of Interglacial Climate Dynamics (INTERDYNAMIC), SpringerBriefs in Earth System Sciences, Springer International Publishing, Cham, 55-62, https://doi.org/10.1007/978-3-319-00693-2_10
Nürnberg, Dirk; Ziegler, Martin; Karas, Cyrus; Tiedemann, Ralf; Schmidt, Matthew W (2008): Interacting Loop Current variability and Mississippi River discharge over the past 400 kyr. Earth and Planetary Science Letters, 272(1-2), 278-289, https://doi.org/10.1016/j.epsl.2008.04.051
Ziegler, Martin; Nürnberg, Dirk; Karas, Cyrus; Tiedemann, Ralf; Lourens, Lucas Joost (2008): Persistent summer expansion of the Atlantic Warm Pool during glacial abrupt cold events. Nature Geoscience, 1, 601-605, https://doi.org/10.1038/ngeo277
Project(s):
Integrierte Analyse zwischeneiszeitlicher Klimadynamik (INTERDYNAMIK)
Funding:
German Research Foundation (DFG), grant/award no. 25575884: Integrierte Analyse zwischeneiszeitlicher Klimadynamik
Coverage:
Latitude: 29.000000 * Longitude: -88.333333
Date/Time Start: 2009-03-04T11:58:00 * Date/Time End: 2009-03-04T11:58:00
Minimum DEPTH, sediment/rock: 0.03 m * Maximum DEPTH, sediment/rock: 12.18 m
Event(s):
M78/1_181-3 (181-3) * Latitude: 29.000000 * Longitude: -88.333333 * Date/Time: 2009-03-04T11:58:00 * Elevation: -803.5 m * IGSN: https://doi.org/10.58031/KIEL0156GERK101 * Location: Mississippi Profile Station 1 * Campaign: M78/1 * Basis: Meteor (1986) * Method/Device: Piston corer (PC)
Comment:
Values marked with # are uncertain.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Nürnberg, Dirk | Geocode | |
| 2 | AGE | Age | ka BP | Nürnberg, Dirk | Geocode – Method: Nürnberg et al., 2015 | |
| 3 | Globigerinoides ruber white, δ13C | G. ruber w δ13C | ‰ PDB | Nürnberg, Dirk | Mass spectrometer, Thermo Fisher Scientific, MAT 253; coupled with Carbonate preparation device, Thermo Fisher Scientific, KIEL IV | VPDB |
| 4 | Globigerinoides ruber white, δ18O | G. ruber w δ18O | ‰ PDB | Nürnberg, Dirk | Mass spectrometer, Thermo Fisher Scientific, MAT 253; coupled with Carbonate preparation device, Thermo Fisher Scientific, KIEL IV | VPDB |
| 5 | Globigerinoides ruber white, Magnesium/Calcium ratio | G. ruber w Mg/Ca | mmol/mol | Nürnberg, Dirk | ICP-OES, VARIAN 720-ES | Method: Nürnberg et al., 2008 |
| 6 | Globigerinoides ruber white, Strontium/Calcium ratio | G. ruber w Sr/Ca | mmol/mol | Nürnberg, Dirk | ICP-OES, VARIAN 720-ES | Method: Nürnberg et al., 2008 |
| 7 | Globigerinoides ruber white, Aluminium/Calcium ratio | G. ruber w Al/Ca | mmol/mol | Nürnberg, Dirk | ICP-OES, VARIAN 720-ES | Method: Nürnberg et al., 2008 |
| 8 | Globigerinoides ruber white, Iron/Calcium ratio | G. ruber w Fe/Ca | mmol/mol | Nürnberg, Dirk | ICP-OES, VARIAN 720-ES | Method: Nürnberg et al., 2008 |
| 9 | Globigerinoides ruber white, Manganese/Calcium ratio | G. ruber w Mn/Ca | mmol/mol | Nürnberg, Dirk | ICP-OES, VARIAN 720-ES | Method: Nürnberg et al., 2008 |
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:
954 data points