Journal cover Journal topic
Biogeosciences An interactive open-access journal of the European Geosciences Union
Journal topic
BG | Volume 16, issue 8
Biogeosciences, 16, 1705–1727, 2019
https://doi.org/10.5194/bg-16-1705-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Biogeosciences, 16, 1705–1727, 2019
https://doi.org/10.5194/bg-16-1705-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 25 Apr 2019

Research article | 25 Apr 2019

Long-chain diols in settling particles in tropical oceans: insights into sources, seasonality and proxies

Marijke W. de Bar et al.
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Long chain diols in settling particles in tropical oceans: insights into sources, seasonality and proxies Marijke W. de Bar, Jenny Ullgren, Robert C. Thunell, Stuart G. Wakeham, Geert-Jan A. Brummer, Jan-Berend W. Stuut, Jaap S. Sinninghe Damsté, and Stefan Schouten https://doi.pangaea.de/10.1594/PANGAEA.898278

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We analyzed sediment traps from the Cariaco Basin, the tropical Atlantic and the Mozambique Channel to evaluate seasonal imprints in the concentrations and fluxes of long-chain diols (LDIs), in addition to the long-chain diol index proxy (sea surface temperature proxy) and the diol index (upwelling indicator). Despite significant degradation, LDI-derived temperatures were very similar for the sediment traps and seafloor sediments, and corresponded to annual mean sea surface temperatures.
We analyzed sediment traps from the Cariaco Basin, the tropical Atlantic and the Mozambique...
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