Blar i forfatter "Pellerin, André"

Viser treff 1-2 av 2

    • Multiple sulfur isotopes in methane seep carbonates track unsteady sulfur cycling during anaerobic methane oxidation 

      Cremiere, Antoine; Pellerin, André; Wing, Boswell A.; Lepland, Aivo (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-12-19)
      The anaerobic oxidation of methane coupled with sulfate reduction (AOM-SR) is a major microbially-mediated methane consuming process in marine sediments including methane seeps. The AOM-SR can lead to the formation of methane-derived authigenic carbonates which entrap sulfide minerals (pyrite) and carbonate-associated sulfate (CAS). We studied the sulfur isotope compositions of the pyrite and CAS ...

    • The pyrite multiple sulfur isotope record of the 1.98 Ga Zaonega Formation: Evidence for biogeochemical sulfur cycling in a semi-restricted basin 

      Paiste, Kärt; Pellerin, André; Zerkle, A.L.; Kirsimäe, K.; Prave, A.R.; Romashkin, A.E; Lepland, Aivo (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-01-21)
      The pyrite sulfur isotope record of the 1.98 Ga Zaonega Formation in the Onega Basin, NW Russia, has played a central role in understanding ocean-atmosphere composition and inferring worldwide fluctuations of the seawater sulfate reservoir during the pivotal times of the Paleoproterozoic Era. That, in turn, has led to a concept that Earth's atmospheric oxygen levels underwent global-scale changes. ...