Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Bruni, Elena T; Blattmann, Thomas Michael; Haghipour, Negar; Louw, Deon C; Mark, Lever; Eglinton, Timothy Ian (2022): Sedimentary hydrodynamic processes under low-oxygen conditions: implications for past, present, and future oceans [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.952939

Always quote citation above when using data! You can download the citation in several formats below.

Published: 2022-12-21 • DOI registered: 2023-02-27

RIS CitationBibTeX Citation ShareShow MapGoogle Earth

Abstract:
The Benguela Upwelling System is situated between 18°S and 26°S and is characterized by seasonally variable upwelling cells, elevated surface primary and secondary productivity, high sedimentary organic carbon concentrations (up to 20 %), and locally stable bottom water anoxia. Between 2014 and 2019, surface sediment cores were collected, subsampled, and analysed using geochemical and sedimentological tools. For the grain size fractionation, a combined sieve-centrifuge-filtering approach was developed to create seven fractions (> 250, 250-200, 200-125, 125-63, 63-10, 10-2, ≤ 2.0 µm) and the density fractionation followed a centrifugation sequence to yield four fractions using sodium polytungstate (NaW) heavy liquid (≤ 1.6, 1.6-2.0, 2.0-2.5, > 2.5 g cm-3) (cf., Wakeham et al., 2009, https://doi.org/10.1016/j.marchem.2009.08.005). The bulk surface sediment and each fraction were analysed for TOC (%), radiocarbon age (F14C), and surface area (m2 g-1). Together with literature data, these samples are used to test and illustrate a novel hypothesis on sediment hydrodynamic properties in oxygen-depleted environments.
Keyword(s):
Benguela Upwelling System; density fractionation; grain size analysis; radiocarbon isotope (Fm); SLOB; Total Organic Carbon
Supplement to:
Bruni, Elena T; Blattmann, Thomas Michael; Haghipour, Negar; Louw, Deon C; Lever, Mark A; Eglinton, Timothy Ian (2022): Sedimentary Hydrodynamic Processes Under Low-Oxygen Conditions: Implications for Past, Present, and Future Oceans. Frontiers in Earth Science, 10, 886395, https://doi.org/10.3389/feart.2022.886395
Coverage:
Median Latitude: -9.999528 * Median Longitude: 56.618182 * South-bound Latitude: -46.093500 * West-bound Longitude: 11.056700 * North-bound Latitude: 81.080000 * East-bound Longitude: -76.030000
Date/Time Start: 1989-10-01T00:00:00 * Date/Time End: 2014-08-01T00:00:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
16 datasets

Download Data

Download ZIP file containing all datasets as tab-delimited text — use the following character encoding:

Datasets listed in this bundled publication

  1. Bruni, ET; Blattmann, TM; Haghipour, N et al. (2022): Bulk total organic carbon and fraction modern carbon of surface sediment samples from the Benguela Upwelling System. https://doi.org/10.1594/PANGAEA.952913
  2. Bruni, ET; Blattmann, TM; Haghipour, N et al. (2022): Fraction modern carbon density fractions of surface sediment samples from the Benguela Upwelling System. https://doi.org/10.1594/PANGAEA.952932
  3. Bruni, ET; Blattmann, TM; Haghipour, N et al. (2022): Density fractions of surface sediment samples from the Benguela Upwelling System. https://doi.org/10.1594/PANGAEA.952679
  4. Bruni, ET; Blattmann, TM; Haghipour, N et al. (2022): Grain size analysis of surface sediment samples from the Benguela Upwelling System. https://doi.org/10.1594/PANGAEA.952758
  5. Bruni, ET; Blattmann, TM; Haghipour, N et al. (2022): Grain size fraction modern carbon of surface sediment samples from the Benguela Upwelling System. https://doi.org/10.1594/PANGAEA.952920
  6. Bruni, ET; Blattmann, TM; Haghipour, N et al. (2022): Grain size fractions of surface sediment samples from the Benguela Upwelling System. https://doi.org/10.1594/PANGAEA.952665
  7. Bruni, ET; Blattmann, TM; Haghipour, N et al. (2022): Surface area of surface sediment samples from the Benguela Upwelling System. https://doi.org/10.1594/PANGAEA.952911
  8. Bruni, ET; Blattmann, TM; Haghipour, N et al. (2022): Physical oceanography of MOSAIC database stations. https://doi.org/10.1594/PANGAEA.954834
  9. Bruni, ET; Blattmann, TM; Haghipour, N et al. (2022): Organic carbon and fraction modern carbon of surface sediment samples from the Benguela Upwelling System between 2014 and 2019 (S1 BUS). https://doi.org/10.1594/PANGAEA.952452
  10. Bruni, ET; Blattmann, TM; Haghipour, N et al. (2022): Local organic carbon and fraction modern carbon of surface sediment samples from the Benguela Upwelling System (S1 local). https://doi.org/10.1594/PANGAEA.951801
  11. Bruni, ET; Blattmann, TM; Haghipour, N et al. (2022): Organic carbon and fraction modern carbon of surface sediment samples from the Benguela Upwelling System (S2 BUS). https://doi.org/10.1594/PANGAEA.952502
  12. Bruni, ET; Blattmann, TM; Haghipour, N et al. (2022): Global organic carbon and fraction modern carbon of surface sediment samples from the Benguela Upwelling System (S2 global). https://doi.org/10.1594/PANGAEA.952428
  13. Bruni, ET; Blattmann, TM; Haghipour, N et al. (2022): Organic carbon and densities of surface sediment samples from the Benguela Upwelling System (S3 BUS). https://doi.org/10.1594/PANGAEA.952522
  14. Bruni, ET; Blattmann, TM; Haghipour, N et al. (2022): Global organic carbon of surface sediment samples from the Benguela Upwelling System (S3 global). https://doi.org/10.1594/PANGAEA.952433
  15. Bruni, ET; Blattmann, TM; Haghipour, N et al. (2022): Organic carbon and surface area of surface sediment samples from the Benguela Upwelling System (S4 BUS). https://doi.org/10.1594/PANGAEA.952662
  16. Bruni, ET; Blattmann, TM; Haghipour, N et al. (2022): Global organic carbon, fraction modern carbon, and surface area of surface sediment samples from the Benguela Upwelling System (S4 global). https://doi.org/10.1594/PANGAEA.952445