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Jens Matthiessen

As seen in: Nature, Nerikes Allehanda
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Articles

Svalbard-barents ice sheet instability enhanced delivery of reactive iron to the ocean

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By Allyson Tessin, Christian März, Johan C. Faust, Philipp Böning, Matthias Forwick, Rachael Gray Verified, Jens Matthiessen, Anke Neumann, Matthew O’Regan, Bernhard Schnetger, Christoph Vogt
| Nature Verified
Abstract Iron (Fe) plays a key role in marine environments as a bio-limiting nutrient and a control on sedimentary burial of carbon and other nutrients. Sensitive glacial systems provide an important delivery mechanism for Fe to the ocean, but it is unknown how these glacial sources will change as ice retreats.
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The potential role of Arctic seaway expansion in driving the Mid-Pleistocene Transition

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By Kwangchul Jang, Germain Bayon, Yeongcheol Han, Young Joe, Sang-Yoon Jun, Jens Matthiessen, Matt O’Regan, Christoph Vogt, Ruediger Stein, Tatsuhiko Sakamoto, Eunji Byun, Kyung Sik Woo, Seung-Il Nam, Yeong Ju Son
| Nature Verified
Abstract The Mid-Pleistocene Transition between ~ 1.25 and 0.7 million years ago is a critical interval in Quaternary climate history, marked by a shift in glacial-interglacial cyclicity from ~ 41,000 to ~ 100,000 years, yet its cause remains debated. Here we present authigenic neodymium isotope records from marine sediments to reconstruct past changes in Arctic Ocean circulation during this period.
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A 430 kyr record of ice-sheet dynamics and organic-carbon burial in the central Eurasian Arctic Ocean - Nature Communications

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By Ruediger Stein, Kirsten Fahl, Walter Geibert, Jens Matthiessen, Christoph Vogt, Thomas Frederichs
| Nature Verified
Abstract Late Quaternary central Arctic Ocean paleoclimatic records going beyond the last climate cycle, are still very rare. Here, we present data from a well-dated deep-sea sediment core that allow for the first time to reconstruct in detail the interrelationship between ice-sheet dynamics and organic-carbon (OC) burial in the Eurasian Basin during the last 430 kyr, and to correlate marine and terrestrial records of the Eurasian Ice Sheet (EIS) history.
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