Aged black carbon in marine sediments and sinking particles

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dc.citation.firstpage2427en_US
dc.citation.issueNumber7en_US
dc.citation.journalTitleGeophysical Research Lettersen_US
dc.citation.lastpage2433en_US
dc.citation.volumeNumber41en_US
dc.contributor.authorCoppola, Alysha I.en_US
dc.contributor.authorZiolkowski, Lori A.en_US
dc.contributor.authorMasiello, Caroline A.en_US
dc.contributor.authorDruffel, Ellen R.M.en_US
dc.date.accessioned2017-06-05T20:44:19Zen_US
dc.date.available2017-06-05T20:44:19Zen_US
dc.date.issued2014en_US
dc.description.abstractWe report measurements of oceanic black carbon (BC) to determine the sources of BC to abyssal marine sediments in the northeast Pacific Ocean. We find that the average 14C age of BC is older (by 6200 ± 2200 14C years) than that of the concurrently deposited non-BC sedimentary organic carbon. We investigate sources of aged BC to sediments by measuring a sample of sinking particulate organic carbon (POC) and find that POC may provide the main transport mechanism of BC to sediments. We suggest that aged BC is incorporated into POC from a combination of resuspended sediments and sorption of ancient dissolved organic carbon BC onto POC. Our BC flux estimate represents ~8–16% of the global burial flux of organic carbon to abyssal sediments and constitutes a minimum long-term removal estimate of 6–32% of biomass-derived BC using the present day emission flux.en_US
dc.identifier.citationCoppola, Alysha I., Ziolkowski, Lori A., Masiello, Caroline A., et al.. "Aged black carbon in marine sediments and sinking particles." <i>Geophysical Research Letters,</i> 41, no. 7 (2014) Wiley: 2427-2433. https://doi.org/10.1002/2013GL059068.en_US
dc.identifier.doihttps://doi.org/10.1002/2013GL059068en_US
dc.identifier.urihttps://hdl.handle.net/1911/94795en_US
dc.language.isoengen_US
dc.publisherWileyen_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.titleAged black carbon in marine sediments and sinking particlesen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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