Nürnberg, Dirk; Kayode, Akintunde; Meier, Karl J F; Karas, Cyrus (2022): Stable isotopes and Mg/Ca ratios of planktonic foraminiferal species (G. truncatulinoides, O. universa, G. ruber) from sediment core MD03-2416G [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.943197
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Abstract:
Proxy parameter of core MD03-2614G: Isotope-geochemical were performed on the planktonic foraminiferal species Globorotalia truncatulinoides, Orbulina universa and Globigerinoides ruber. The foraminiferal specimens were selected from sediment core MD03-2614G, which was recovered from south of Cape Pasley (south of Australia; 34°43.73S 123°25.70E) from 1070 m water depth during R/V Marion Dufresne Cruise MD131 in 2003 (https://doi.org/10.17600/3200090). Sampling and analytical studies were carried out from ~2 to 538 cm core depth at 2 cm spatial resolution. The records cover the last ~60 kyrs. The stable carbon (δ13C; ‰ VPDB) and oxygen isotope (δ18O, ‰ VPDB) analyses were performed on a Thermo Scientific MAT 253 mass spectrometer with an automated Kiel IV Carbonate Preparation Device. The proxy data provide stratigraphical information and were used to calculate the ice volume-corrected δ18O of seawater (δ18Osw-ivc; ‰ VSMOW). The geochemical analyses were performed on a VARIAN 720–ES Axial ICP-OES, a simultaneous, axial-viewing inductively coupled plasma optical emission spectrometer coupled to a VARIAN SP3 sample preparation system at GEOMAR. G. truncatulinoides were analyzed on a simultaneous, radially viewing ICP-OES (Ciros CCD SOP, Spectro A.I., Univ. Kiel). Sample introduction was performed via an autosampler (Spectra A.I.). Mg/Ca ratios (mmol/mol) were converted into thermocline (TT; °C) and sea surface temperatures (STT; °C). Contaminant phases are added: Al/Ca, Fe/Ca, Mn/Ca in mmol/mol).
Supplement to:
Nürnberg, Dirk; Kayode, Akintunde; Meier, Karl J F; Karas, Cyrus (2022): Leeuwin Current dynamics over the last 60 kyr – relation to Australian ecosystem and Southern Ocean change. Climate of the Past, 18(11), 2483-2507, https://doi.org/10.5194/cp-18-2483-2022
Related to:
Michel, Elisabeth; De Deckker, Patrick; Nürnberg, Dirk (2003): MD 131 / AUSCAN cruise, RV Marion Dufresne. Sismer, https://doi.org/10.17600/3200090
van der Kaars, Sander; Miller, Gifford H; Turney, Chris S M; Cook, Ellyn J; Nürnberg, Dirk; Schönfeld, Joachim; Kershaw, A Peter; Lehman, S J (2017): Humans rather than climate the primary cause of Pleistocene megafaunal extinction in Australia. Nature Communications, 8(1), https://doi.org/10.1038/ncomms14142
Funding:
Coverage:
Latitude: -34.728800 * Longitude: 123.428300
Date/Time Start: 2003-03-02T19:11:00 * Date/Time End: 2003-03-02T19:11:00
Minimum DEPTH, sediment/rock: 0.02 m * Maximum DEPTH, sediment/rock: 5.38 m
Event(s):
MD03-2614G (MD032614G) * Latitude: -34.728800 * Longitude: 123.428300 * Date/Time: 2003-03-02T19:11:00 * Elevation: -1070.0 m * Recovery: 8.4 m * Location: Southern Ocean * Campaign: MD131 (AUSCAN) * Basis: Marion Dufresne (1995) * Method/Device: Gravity corer (GC)
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
3359 data points
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