Blar i forfatter "Beauchamp, Benoit"

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    • Continental weathering and recovery from ocean nutrient stress during the Early Triassic Biotic Crisis 

      Knies, Jochen Manfred; Schönenberger, Jasmin; Zwingmann, Horst; van der Lelij, Roelant; Smelror, Morten; Vullum, Per Erik; Vogt, Christoph; Fredin, Ola; Muller, Alxel; Grasby, Stephen E.; Beauchamp, Benoit; Viola, Giulio; Brönner, Marco (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-15)
      Following the latest Permian extinction ∼252 million years ago, normal marine and terrestrial ecosystems did not recover for another 5-9 million years. The driver(s) for the Early Triassic biotic crisis, marked by high atmospheric CO2 concentration, extreme ocean warming, and marine anoxia, remains unclear. Here we constrain the timing of authigenic K-bearing mineral formation extracted from ...

    • Global warming leads to Early Triassic nutrient stress across northern Pangea 

      Grasby, Stephen E.; Knies, Jochen; Beauchamp, Benoit; Bond, David P.G.; Wignall, Paul B.; Sun, Yadong (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-08-30)
      The largest extinction in Earth history, in the latest Permian, was followed throughout most of the Early Triassic by a prolonged period of ecologic recovery. What factors delayed biotic recovery are still under debate and partly revolve around impacts of global warming on primary marine productivity. We examined N isotope records from the Festningen section on Spitsbergen, Arctic Norway, to examine ...