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doi:10.2204/iodp.proc.311.209.2008

Data report: δ³⁴S and δ¹⁸O measurements of dissolved sulfate from interstitial water samples, IODP Expedition 311¹

Ulrich G. Wortmann²

Abstract

³⁴S and ¹⁸O measurements of dissolved sulfate were made from interstitial water samples collected during Integrated Ocean Drilling Program Expedition 311. ³⁴S and ¹⁸O ratios of dissolved sulfate are modified by microbial processes involving sulfur redox processes; therefore, they can be used to better constrain microbial sulfur cycling. All Expedition 311 sites show clear evidence of organotrophic and methanotrophic sulfate reduction. A full interpretation of these results, however, requires careful reaction-transport modeling, which will be given elsewhere.

¹Wortmann, U.G., 2008. Data report: ³⁴S and ¹⁸O measurements of dissolved sulfate from interstitial water samples, IODP Expedition 311. In Riedel, M., Collett, T.S., Malone, M.J., and the Expedition 311 Scientists, Proc. IODP, 311: Washington, DC (Integrated Ocean Drilling Program Management International, Inc.). doi:10.2204/iodp.proc.311.209.2008

²Department of Geology, University of Toronto, 22 Russel Street, Toronto ON M5S 3B1, Canada. uli.wortmann@utoronto.ca

Initial receipt: 26 June 2008
Acceptance: 5 September 2008
Publication: 5 November 2008
MS 311-209

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