Distributions and carbon isotopic compositions of lipid biomarkers in authigenic carbonate crusts from the Nordic margin (Norwegian Sea)

Nicolas Chevalier, Ioanna Bouloubassi, Alina Stadnitskaia, Marie-Helene Taphanel, Anne Lorre, Jaap Sinninghe Damsté, Catherine Pierre

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

We investigated the distributions and delta(13)C values of lipid biomarkers in authigenic carbonate crusts from the Nordic margin (Norwegian Sea) Abundant, highly (13)C-depleted archaeal and bacterial biomarkers revealed that anaerobic oxidation of methane (AOM) is associated with carbonate authigenesis at the Hakon Mosby Mud Volcano (HMMV) and the Nyegga pockmark field No conclusive evidence for AOM was found in the crust sample from the Storegga Slide. ANME-2 methanotrophic archaea and sulfate-reducing bacteria from the Desulfosarcina/Desulfococcus cluster were inferred from lipid fingerprints Distinct patterns of (13)C-depleted, non-isoprenoid dialkyl glycerol diethers (DAGEs) are possibly associated with unknown microbial partners in the AOM (C) 2010 Elsevier Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)885-890
Number of pages6
JournalOrganic Geochemistry
Volume41
Issue number9
DOIs
Publication statusPublished - Sept 2010
Event24th International Meeting on Organic Geochemistry - Bremen, Germany
Duration: 6 Sept 200911 Sept 2009

Keywords

  • Sulfate-reducing bacteria
  • Anaerobic methane oxidation
  • Eastern mediterranean sea
  • Cold seep ecosystems
  • Mosby mud volcano
  • Gulf-of-mexico
  • Black-sea
  • Microbial communities
  • Methanotrophic consortia
  • Inorganic carbon

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