Now showing items 1-5 of 5

  • An interlaboratory study of TEX86 and BIT analysis of sediments, extracts, and standard mixtures 

    Schouten, Stefan; Hopmans, Ellen C.; Rosell-Mele, Antoni; Pearson, Ann; Adam, Pierre; Bauersachs, Thorsten; Bard, Edouard; Bernasconi, Stefano M.; Bianchi, Thomas S.; Brocks, Jochen J.; Carlson, Laura Truxal; Castaneda, Isla S.; Derenne, Sylvie; Selver, Ayca Dogrul; Dutta, Koushik; Eglinton, Timothy I.; Fosse, Celine; Galy, Valier; Grice, Kliti; Hinrichs, Kai-Uwe; Huang, Yongsong; Huguet, Arnaud; Huguet, Carme; Hurley, Sarah; Ingalls, Anitra; Jia, Guodong; Keely, Brendan; Knappy, Chris; Kondo, Miyuki; Krishnan, Srinath; Lincoln, Sara; Lipp, Julius; Mangelsdorf, Kai; Martínez-Garcia, Alfredo; Menot, Guillemette; Mets, Anchelique; Mollenhauer, Gesine; Ohkouchi, Naohiko; Ossebaar, Jort; Pagani, Mark; Pancost, Richard D.; Pearson, Emma J.; Peterse, Francien; Reichart, Gert-Jan; Schaeffer, Philippe; Schmitt, Gaby; Schwark, Lorenz; Shah, Sunita R.; Smith, Richard W.; Smittenberg, Rienk H.; Summons, Roger E.; Takano, Yoshinori; Talbot, Helen M.; Taylor, Kyle W. R.; Tarozo, Rafael; Uchida, Masao; van Dongen, Bart E.; Van Mooy, Benjamin A. S.; Wang, Jinxiang; Warren, Courtney; Weijers, Johan W. H.; Werne, Josef P.; Woltering, Martijn; Xie, Shucheng; Yamamoto, Masanobu; Yang, Huan; Zhang, Chuanlun L.; Zhang, Yige; Zhao, Meixun; Sinninghe Damste, Jaap S. (John Wiley & Sons, 2013-12-20)
    Two commonly used proxies based on the distribution of glycerol dialkyl glycerol tetraethers (GDGTs) are the TEX86 (TetraEther indeX of 86 carbon atoms) paleothermometer for sea surface temperature reconstructions and the ...
  • Origins of archaeal tetraether lipids in sediments : insights from radiocarbon analysis 

    Shah, Sunita R.; Mollenhauer, Gesine; Ohkouchi, Naohiko; Eglinton, Timothy I.; Pearson, Ann (2008-06-20)
    Understanding the supply and preservation of glycerol dibiphytanyl glycerol tetraethers (GDGTs) in marine sediments helps inform their use in paleoceanography. Compound-specific radiocarbon measurements of sedimentary ...
  • Radiocarbon constraint on relict organic carbon contributions to Ross Sea sediments 

    Ohkouchi, Naohiko; Eglinton, Timothy I. (American Geophysical Union, 2006-04-19)
    We estimate the relative contribution of relict organic matter to the acid-insoluble organic carbon (AIOC) fraction of surface sediments from Ross Sea, Antarctica, on the basis of 14C abundance. The bulk isotopic ...
  • Radiocarbon dating of alkenones from marine sediments : I. Isolation protocol 

    Ohkouchi, Naohiko; Xu, Li; Reddy, Christopher M.; Montlucon, Daniel B.; Eglinton, Timothy I. (Dept. of Geosciences, University of Arizona, 2005)
    The chemical and isotopic compositions of long-chain (C36–C39) unsaturated ketones (alkenones), a unique class of algal lipids, encode surface ocean properties useful for paleoceanographic reconstruction. Recently, we ...
  • Radiocarbon dating of alkenones from marine sediments : III. Influence of solvent extraction procedures on 14C measurements of foraminifera 

    Ohkouchi, Naohiko; Eglinton, Timothy I.; Hughen, Konrad A.; Roosen, Ellen; Keigwin, Lloyd D. (Dept. of Geosciences, University of Arizona, 2005)
    As a result of the growing use of multiple geochemical proxies to reconstruct ocean and climate changes in the past, there is an increasing need to establish temporal relationships between proxies derived from the same ...