• Global temperature calibration of the Long chain Diol Index in marine surface sediments 

      de Bar, Marijke W.; Weiss, Gabriella; Yildiz, Caglar; Rampen, Sebastiaan W.; Lattaud, Julie; Bale, Nicole J.; Mienis, Furu; Brummer, Geert-Jan A.; Schulz, Hartmut; Rush, Darci; Kim, Jung-Hyun; Donner, Barbara; Knies, Jochen; Lückge, Andreas; Stuut, Jan-Berend W.; Sinninghe Damsté, Jaap S.; Schouten, Stefan (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-02-07)
      The Long chain Diol Index (LDI) is a relatively new organic geochemical proxy for sea surface temperature (SST), based on the abundance of the C<sub>30</sub> 1,15-diol relative to the summed abundance of the C<sub>28</sub> 1,13-, C<sub>30</sub> 1,13- and C<sub>30</sub> 1,15-diols. Here we substantially extend and re-evaluate the initial core top calibration by combining the original dataset with 172 ...
    • Life on the edge: Active microbial communities in the Kryos MgCl2-brine basin at very low water activity 

      Steinle, Lea; Knittel, Katrin; Felber, Nicole; Casalino, Claudia; de Lange, Gert; Tessarolo, Chiara; Stadnitskaia, Alina; Sinninghe Damsté, Jaap S.; Zopfi, Jakob; Lehmann, Moritz F.; Treude, Tina (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-17)
      The Kryos Basin is a deep-sea hypersaline anoxic basin (DHAB) located in the Eastern Mediterranean Sea (34.98°N 22.04°E). It is filled with brine of re-dissolved Messinian evaporites and is nearly saturated with MgCl<sub>2</sub>-equivalents, which makes this habitat extremely challenging for life. The strong density difference between the anoxic brine and the overlying oxic Mediterranean seawater ...
    • Redox-dependent niche differentiation provides evidence for multiple bacterial sources of glycerol tetraether lipids in lakes 

      Weber, Yuki; Sinninghe Damsté, Jaap S.; Zopfi, Jakob; De Jonge, Cindy; Gilli, Adrian; Schubert, Carsten J.; Lepori, Fabio; Lehmann, Moritz F.; Niemann, Helge (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-23)
      Terrestrial paleoclimate archives such as lake sediments are essential for our understanding of the continental climate system and for the modeling of future climate scenarios. However, quantitative proxies for the determination of paleotemperatures are sparse. The relative abundances of certain bacterial lipids, i.e., branched glycerol dialkyl glycerol tetraethers (brGDGTs), respond to changes in ...
    • Variations in benthic foraminiferal assemblages in the Tagus mud belt during the last 5700 years: Implications for Tagus River discharge 

      Dessandier, Pierre-Antoine; Bonnin, Jérôme; Malaizé, Bruno; Lambert, Clément; Tjallingii, Rik; Warden, Lisa; Sinninghe Damsté, Jaap S.; Kim, Jung-Hyun (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-01-31)
      We analyzed a 10-m sediment core retrieved at 82 m water depth off the coast of the Tagus River (Western Iberian Margin, Portugal) to investigate a linkage between variations in benthic foraminiferal assemblages and Tagus River discharge over the last 5700 years. Benthic foraminiferal assemblages were studied at high resolution in combination with the stable carbon and oxygen isotopic composition ...