Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky University Oldenburg, Germany
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
Lamont-Doherty Earth Observatory of Columbia University, New York
Department of Earth & Environmental Sciences - Columbia University
Major and trace element concentrations and 230Thxs-normalized fluxes for sediment core PS58/270-5
Data Publisher for Earth & Environmental Science
This dataset contains major and trace element concentration data for bulk sediment digests for core PS58/270-5 collected during R/V Polarstern expedition ANT-XVIII/5a (PS58) in 2001 (Miller, 2001) in the South Pacific Antarctic Zone. The sediment digests were analyzed for their major and trace element compositions using inductively coupled plasma optical emission spectroscopy (ICP-OES) and for their U and Th content using inductively coupled plasma mass spectrometry (ICP-MS) at Lamont-Doherty Earth Observatory, Columbia University to calculate 230Thxs normalized fluxes (Costa et al., 2020). All element concentrations and activties have been corrected for salt content (Kuhn, 2013). The dataset contains two independent age models derived from diatom-based stratigraphy and correlation of the SSST and Fe content with EDC ice core data (doi:10.1594/PANGAEA.983158) and (ii) from non-lithogenic 230Th decay (Geibert et al., 2019). The element concentrations and internal 1RSD (%) were calculated based on multiple wavelengths where available (Al, Fe, Ca, Mg, Ti, Sr, Y, Ba). Every wavelength was analyzed five times during a measurement (five 'cycles'). Where only a single wavelength is available (K), the internal uncertainty represents the 1RSD of the five cycles. External uncertainty was calculated as 1SD of full replicate analysis of VIMS reference material (n = 8) (Costa et al., 2017). Propagated uncertainties for elemental ratios combine external uncertainties, and propagated uncertainties for 230Thxs-normalized fluxes combine internal and external uncertainties. This dataset uses a revised stratigraphy as […]
This dataset contains major and trace element concentration data for bulk sediment digests for core PS58/270-5 collected during R/V Polarstern expedition ANT-XVIII/5a (PS58) in 2001 (Miller, 2001) in the South Pacific Antarctic Zone. The sediment digests were analyzed for their major and trace element compositions using inductively coupled plasma optical emission spectroscopy (ICP-OES) and for their U and Th content using inductively coupled plasma mass spectrometry (ICP-MS) at Lamont-Doherty Earth Observatory, Columbia University to calculate 230Thxs normalized fluxes (Costa et al., 2020). All element concentrations and activties have been corrected for salt content (Kuhn, 2013). The dataset contains two independent age models derived from diatom-based stratigraphy and correlation of the SSST and Fe content with EDC ice core data (doi:10.1594/PANGAEA.983158) and (ii) from non-lithogenic 230Th decay (Geibert et al., 2019). The element concentrations and internal 1RSD (%) were calculated based on multiple wavelengths where available (Al, Fe, Ca, Mg, Ti, Sr, Y, Ba). Every wavelength was analyzed five times during a measurement (five 'cycles'). Where only a single wavelength is available (K), the internal uncertainty represents the 1RSD of the five cycles. External uncertainty was calculated as 1SD of full replicate analysis of VIMS reference material (n = 8) (Costa et al., 2017). Propagated uncertainties for elemental ratios combine external uncertainties, and propagated uncertainties for 230Thxs-normalized fluxes combine internal and external uncertainties. This dataset uses a revised stratigraphy as section 1995-2095 cm was curated in reverse order.
South Pacific carbon uptake controlled by West Antarctic Ice Sheet dynamics
230Th Normalization: New Insights on an Essential Tool for Quantifying Sedimentary Fluxes in the Modern and Quaternary Ocean
Efficacy of 230Th normalization in sediments from the Juan de Fuca Ridge, northeast Pacific Ocean
Dating Deep-Sea Sediments With 230Th Excess Using a Constant Rate of Supply Model
Don't forget the salty soup: Calculations for bulk marine geochemistry and radionuclide geochronology
Expedition Programme No. 59. RV POLARSTERN. ANT XVIII/5a. ANT XVII1/5b
Stiftung Alfred-Wegener-Institut für Polar- und Meeresforschung Bremerhaven (in German)
An automated leaching method for the determination of opal in sediments and particulate matter
Deep Sea Research Part I: Oceanographic Research Papers
Early Proterozoic climates and plate motions inferred from major element chemistry of lutites
The geochemical evolution of the continental crust
Glacial - Interglacial Changes in Dust Supply to the Pacific Southern Ocean
See also doi:10.1594/PANGAEA.983158 and Struve et al. (2026)
Inductively coupled plasma mass spectrometer (ICP-MS), Thermo Scientific, Element II
Thermo Fisher Scientific ELEMENT 2 inductively coupled plasma mass spectrometer
Thorium-230 excess, decay-corrected, uncertainty
Mass flux; 230Thexcess normalized mass fluxes (doi:10.1016/j.gca.2016.10.034)
Inductively coupled plasma optical emission spectrometer (ICP-OES), Agilent 720
inductively-coupled plasma atomic emission spectroscopes
External RSD, propagated where internal>external RSD
Calculated based on sample Ti and Th concentrations with UCC Ba/Ti of 0.183 and Ba/Th of 51.4 (Taylor & McLennan, 1995)
230Thexcess normalized mass fluxes (Costa & McManus, 2017)
Opal, auto analysis (Müller & Schneider, 1993)
Chemical index of alteration, uncertainty
glacial-interglacial changes; iron fertilization; particle fluxes; Pleistocene; Southern Ocean; WAIS