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Organic matter deli...
Organic matter delivery to Quaternary sediments of Amundsen Basin, central Arctic Ocean
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- Andersson, Rina Argelia (författare)
- Stockholms universitet,Institutionen för geologiska vetenskaper
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- Jakobsson, Martin (författare)
- Stockholms universitet,Institutionen för geologiska vetenskaper
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- Meyers, Philip (författare)
- Department of Earth and Environmental Sciences, The University of Michigan, Ann Arbor, Michigan, U.S.A.
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visa fler...
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- Löwemark, Ludvig (författare)
- Stockholms universitet,Institutionen för geologiska vetenskaper
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- Johansson, Carina (författare)
- Stockholms universitet,Institutionen för geologiska vetenskaper
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visa färre...
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(creator_code:org_t)
- Engelska.
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- Quaternary marine sediments retrieved from the central Arctic Ocean in a 30 cm long core, were analyzed for paleoenvironmental reconstruction. n-Alkane biomarkers combined with elemental analyses that include X-ray fluorescence (XRF) core scanning provide complementary information that suggest important influxes of terrigenous derived organic matter (OM) with depth. Changes in the variability of n-alkane-derived and elemental ratios with depth reflect the complexity of the organic carbon cycle in this region. The distributions and abundances of the long-chain n-alkanes reveal a high content of terrigenous derived components and suggest together with mathematical estimations high deliveries of the terrigenous OM in the past. XRF trace metal analyses suggest less-oxygenated bottom waters that may have allowed for better preservation conditions of OM deeper in the core.
Nyckelord
- n-alkanes
- biomarkers
- Arctic Ocean
- Lomonosov Ridge
- geokemi
- Geochemistry
Publikations- och innehållstyp
- vet (ämneskategori)
- ovr (ämneskategori)