Authors
Stefan Schouten, Ellen C Hopmans, Antoni Rosell‐Melé, Ann Pearson, Pierre Adam, Thorsten Bauersachs, Edouard Bard, Stefano M Bernasconi, Thomas S Bianchi, Jochen J Brocks, Laura Truxal Carlson, Isla S Castaneda, Sylvie Derenne, Ayça Doğrul Selver, Koushik Dutta, Timothy Eglinton, Celine Fosse, Valier Galy, Kliti Grice, Kai‐Uwe Hinrichs, Yongsong Huang, Arnaud Huguet, Carme Huguet, Sarah Hurley, Anitra Ingalls, Guodong Jia, Brendan Keely, Chris Knappy, Miyuki Kondo, Srinath Krishnan, Sara Lincoln, Julius Lipp, Kai Mangelsdorf, Alfredo Martínez‐García, Guillemette Ménot, Anchelique Mets, Gesine Mollenhauer, Naohiko Ohkouchi, Jort Ossebaar, Mark Pagani, Richard D Pancost, Emma J Pearson, Francien Peterse, Gert‐Jan Reichart, Philippe Schaeffer, Gaby Schmitt, Lorenz Schwark, Sunita R Shah, Richard W Smith, Rienk H Smittenberg, Roger E Summons, Yoshinori Takano, Helen M Talbot, Kyle WR Taylor, Rafael Tarozo, Masao Uchida, Bart E Van Dongen, Benjamin AS Van Mooy, Jinxiang Wang, Courtney Warren, Johan WH Weijers, Josef P Werne, Martijn Woltering, Shucheng Xie, Masanobu Yamamoto, Huan Yang, Chuanlun L Zhang, Yige Zhang, Meixun Zhao, Jaap S Sinninghe Damsté
Publication date
2013/12
Journal
Geochemistry, Geophysics, Geosystems
Volume
14
Issue
12
Pages
5263-5285
Description
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 BIT (Branched Isoprenoid Tetraether) index for reconstructing soil organic matter input to the ocean. An initial round‐robin study of two sediment extracts, in which 15 laboratories participated, showed relatively consistent TEX86 values (reproducibility ±3–4°C when translated to temperature) but a large spread in BIT measurements (reproducibility ±0.41 on a scale of 0–1). Here we report results of a second round‐robin study with 35 laboratories in which three sediments, one sediment extract, and two mixtures of pure, isolated GDGTs were analyzed. The results for TEX86 and BIT index showed improvement compared to the previous round‐robin study. The reproducibility, indicating …
Scholar articles
S Schouten, EC Hopmans, A Rosell‐Melé, A Pearson… - Geochemistry, Geophysics, Geosystems, 2013