Browsing by Author "Wittig, Cathrin"

Now showing items 1-2 of 2

    • Formation of non-evaporitic gypsum in gas hydrate-bearing sediments at Håkon Mosby mud volcano, SW Barents sea 

      Wittig, Cathrin; Argentino, Claudio; Panieri, Giuliana (Journal article; Tidsskriftartikkel; Peer reviewed, 2024-04-29)
      Authigenic minerals such as carbonate and iron sulfide are known features at cold seeps worldwide and form as a result of the anaerobic oxidation of methane in the sulfate-methane transition zone (SMTZ). Recent findings of seep-related non-evaporitic gypsum raise questions regarding its distribution, formation mechanisms, and relationships with the other proxies for confident paleo-seep reconstructions. ...

    • Nitrogen uptake by methanotrophic consortia in deep-water gas hydrate-bearing sediments 

      Argentino, Claudio; Wittig, Cathrin; Peckmann, Jörn; Panieri, Giuliana (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-07-19)
      Methane-consuming microbes inhabiting marine methane seeps have recently been found to have the capacity to assimilate inorganic nitrogen, suggesting a previously unaccounted role in the global nitrogen cycle. Despite ex-situ experimental observations, definitive evidence of this process under in-situ conditions remains elusive, hindering the complete understanding of the controlling factors and ...