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Swaantje Brzelinski on Muck Rack

Swaantje Brzelinski

As seen in: Nature
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Articles

Eccentricity pacing and rapid termination of the early Antarctic ice ages - Nature Communications

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By Diederik Liebrand, Victoria Taylor, Swaantje Brzelinski, André Bornemann, Oliver Friedrich, Chuang Xuan, Peter C. Lippert
| Nature Verified
Abstract Earth’s obliquity and eccentricity cycles are strongly imprinted on Earth’s climate and widely used to measure geological time. However, the record of these imprints on the oxygen isotope record in deep-sea benthic foraminifera (δ18Ob) shows contradictory signals that violate isotopic principles and cause controversy over climate-ice sheet interactions.
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Large obliquity-paced Antarctic ice-volume fluctuations suggest melting by atmospheric and ocean warming during late Oligocene - Communications Earth & Environment

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By André Bornemann, Diederik Liebrand, Paul Wilson, Swaantje Brzelinski
| Nature Verified
Abstract The late Oligocene (~27.8–23 My ago) offers an opportunity to study past climate variability under high-CO2, warmer-than-present and the unipolar (Antarctic) glaciated state. Here, we present new high-resolution geochemical records from exquisitely well-preserved benthic foraminifera for the late Oligocene, an interval for which Antarctic ice-sheet size and stability are debated.
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