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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
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| one publication added to basket [368657] |
Indian Ocean glacial deoxygenation and respired carbon accumulation during mid-late Quaternary ice ages
Chang, L.; Hoogakker, B.A.A.; Heslop, D.; Zhao, X.; Roberts, A.P.; De Deckker, P.; Xue, P.; Pei, Z.; Zeng, F.; Huang, R.; Huang, B.; Wang, S.; Berndt, T.; Leng, M.; Stuut, J.-B.W.; Harrison, R. J. (2023). Indian Ocean glacial deoxygenation and respired carbon accumulation during mid-late Quaternary ice ages. Nature Comm. 14(1): 4841. https://dx.doi.org/10.1038/s41467-023-40452-1
Bijhorende data:
In: Nature Communications. Nature Publishing Group: London. ISSN 2041-1723; e-ISSN 2041-1723, meer
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| Author keywords |
Palaeoceanography; Palaeoclimate; Palaeomagnetism |
| Auteurs | | Top |
- Chang, L.
- Hoogakker, B.A.A.
- Heslop, D.
- Zhao, X.
- Roberts, A.P.
- De Deckker, P.
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- Xue, P.
- Pei, Z.
- Zeng, F.
- Huang, R.
- Huang, B.
|
- Wang, S.
- Berndt, T.
- Leng, M.
- Stuut, J.-B.W., meer
- Harrison, R. J.
|
| Abstract |
Reconstructions of ocean oxygenation are critical for understanding the role of respired carbon storage in regulating atmospheric CO2. Independent sediment redox proxies are essential to assess such reconstructions. Here, we present a long magnetofossil record from the eastern Indian Ocean in which we observe coeval magnetic hardening and enrichment of larger, more elongated, and less oxidized magnetofossils during glacials compared to interglacials over the last ~900 ka. Our multi-proxy records of redox-sensitive magnetofossils, trace element concentrations, and benthic foraminiferal Δδ13C consistently suggest a recurrence of lower O2 in the glacial Indian Ocean over the last 21 marine isotope stages, as has been reported for the Atlantic and Pacific across the last glaciation. Consistent multi-proxy documentation of this repeated oxygen decline strongly supports the hypothesis that increased Indian Ocean glacial carbon storage played a significant role in atmospheric CO2 cycling and climate change over recent glacial/interglacial timescales. |
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