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Showing 1–7 of 7 results
Advanced filters: Author: Christophe Thomazo Clear advanced filters

  • How the Early Earth transitioned from an abiotic world to the modern biogeochemical Earth system remains unclear. Here, the authors show that colonization of a minor fraction of Archean landmasses by topsoil bacteria would have been enough to match the modern land-to-ocean nitrogen export of ammonium and nitrate.

    • Christophe Thomazo
    • Estelle Couradeau
    • Ferran Garcia-Pichel
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-8

  • Observations of strongly positive nitrogen isotopic compositions of sedimentary rocks in the 2.68-Gyr-old shallow to deep marine sedimentary deposit of the Serra Sul Formation suggest that oxygenic photosynthesis predated the Great Oxidation Event.

    • Alice Pellerin
    • Christophe Thomazo
    • Pascal Philippot
    Research
    Nature
    Volume: 633, P: 365-370

  • Analysis of a series of Earth system model experiments shows that continental rearrangement during the Phanerozoic had a marked influence on variations in ocean oxygenation, independent of atmospheric pO2.

    • Alexandre Pohl
    • Andy Ridgwell
    • Christopher R. Scotese
    Research
    Nature
    Volume: 608, P: 523-527

  • The Great Oxidation Event (GOE) is considered to have occurred at 2.33–2.32 Ga based on the last occurrence of MIF-S in South Africa. Here, based on sulphur isotope analysis of samples from Western Australia, the authors show preservation of MIF-S beyond 2.31 Ga and call for a re-evaluation of GOE timing.

    • Pascal Philippot
    • Janaína N. Ávila
    • Vincent Busigny
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-10

  • The nitrogen cycle is connected to the evolution of Earth and life. This Review explores the trends and perturbations in the marine nitrogen cycle and highlights how the cycle responded and perhaps modulated major events over Earth’s history.

    • Eva E. Stüeken
    • Alice Pellerin
    • Shane D. Schoepfer
    Reviews
    Nature Reviews Earth & Environment
    Volume: 5, P: 732-747