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Showing 1–2 of 2 results
Advanced filters: Author: Christian Mac Ørum Rasmussen Clear advanced filters

  • The Middle Ordovician icehouse has been suggested to be sparked by extra-terrestrial dust associated with an asteroid break-up. Here, the authors use an astronomically calibrated timescale to decouple millennia-scale climate and biodiversity change from the meteorite shower 468.4 million years ago.

    • Jan Audun Rasmussen
    • Nicolas Thibault
    • Christian Mac Ørum Rasmussen
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-14

  • The period leading up to the Great Ordovician Biodiversification Event was characterised by stable marine anoxic zones with a substantial increase in atmospheric oxygen occurring only after this, according to uranium isotope analyses of marine carbonates from southern Sweden

    • Álvaro del Rey
    • Christian Mac Ørum Rasmussen
    • Tais W. Dahl
    ResearchOpen Access
    Communications Earth & Environment
    Volume: 3, P: 1-7