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Showing 1–8 of 8 results
Advanced filters: Author: Oliver M. Esper Clear advanced filters

  • Iron derived from debris eroded by the West Antarctic Ice Sheet rather than from dust deposition drove variations in carbon export in the South Pacific Antarctic region over the past 500,000 years, according to geochemical proxies from a sediment core.

    • Torben Struve
    • Frank Lamy
    • Gisela Winckler
    ResearchOpen Access
    Nature Geoscience
    Volume: 19, P: 173-181

  • The West Antarctic Ice Sheet responded to different natural forcing mechanisms than the East Antarctic Ice Sheet through the mid-Pliocene due to a greater sensitivity to oceanic feedbacks, according to iceberg-rafted debris records and ice-sheet modelling experiments.

    • Molly O. Patterson
    • Christiana Rosenberg
    • Robert McKay
    Research
    Nature Geoscience
    Volume: 19, P: 182-188

  • The strength of the Antarctic Circumpolar Current, as traced in sediment cores from the Pacific Southern Ocean, shows no linear long-term trend over the past 5.3 Myr; instead, the strongest flow occurs consistently in warmer-than-present intervals.

    • Frank Lamy
    • Gisela Winckler
    • Xiangyu Zhao
    ResearchOpen Access
    Nature
    Volume: 627, P: 789-796

  • Lower glacial atmospheric CO2has been linked to enhanced carbon storage in the Southern Ocean, yet the associated biological and physical mechanisms are poorly understood. Here, the authors combine diatom and radiolarian isotope measurements, and model simulations to investigate surface–subsurface processes.

    • Andrea Abelmann
    • Rainer Gersonde
    • Ralf Tiedemann
    ResearchOpen Access
    Nature Communications
    Volume: 6, P: 1-13

  • Multi-proxy core data and model simulations support the presence of temperate rainforests near the South Pole during mid-Cretaceous warmth, indicating very high CO2 levels and the absence of Antarctic ice.

    • Johann P. Klages
    • Ulrich Salzmann
    • M. Scheinert
    Research
    Nature
    Volume: 580, P: 81-86

  • Changes in climate preconditioned large-scale, recurrent Miocene to Pleistocene Antarctic submarine landslides through variations in biological productivity, ice proximity and ocean circulation, posing tsunami risk to Southern Hemisphere populations.

    • Jenny A. Gales
    • Robert M. McKay
    • Zhifang Xiong
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-16