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Showing 1–3 of 3 results
Advanced filters: Author: Matthew T. Hurtgen Clear advanced filters

  • Several periods of global ocean anoxia punctuated the Cretaceous period. Marine-sediment chemistry indicates that extensive volcanism at the beginning of Oceanic Anoxic Event 2 released sulphur to the oceans, triggering a biogeochemical cascade that led to enhanced surface productivity and depletion of oxygen in the underlying waters.

    • Derek D. Adams
    • Matthew T. Hurtgen
    • Bradley B. Sageman
    Research
    Nature Geoscience
    Volume: 3, P: 201-204

  • The ocean chemistry of 1.5 billion years ago, inferred from rocks of that age, supports the view that marine conditions then were very different from those that pertained at earlier and later times.

    • Matthew T. Hurtgen
    News & Views
    Nature
    Volume: 423, P: 592-593