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dc.contributor.author
Conway, Timothy M.
dc.contributor.author
Wolff, Eric W.
dc.contributor.author
Röthlisberger, Regine
dc.contributor.author
Mulvaney, Robert
dc.contributor.author
Elderfield, Henry
dc.date.accessioned
2018-09-07T16:38:17Z
dc.date.available
2017-06-11T18:36:00Z
dc.date.available
2018-09-07T16:38:17Z
dc.date.issued
2015
dc.identifier.other
10.1038/ncomms8850
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/102950
dc.identifier.doi
10.3929/ethz-b-000102950
dc.description.abstract
Relief of iron (Fe) limitation in the Southern Ocean during ice ages, with potentially increased carbon storage in the ocean, has been invoked as one driver of glacial–interglacial atmospheric CO2 cycles. Ice and marine sediment records demonstrate that atmospheric dust supply to the oceans increased by up to an order of magnitude during glacial intervals. However, poor constraints on soluble atmospheric Fe fluxes to the oceans limit assessment of the role of Fe in glacial–interglacial change. Here, using novel techniques, we present estimates of water- and seawater-soluble Fe solubility in Last Glacial Maximum (LGM) atmospheric dust from the European Project for Ice Coring in Antarctica (EPICA) Dome C and Berkner Island ice cores. Fe solubility was very variable (1–42%) during the interval, and frequently higher than typically assumed by models. Soluble aerosol Fe fluxes to Dome C at the LGM (0.01–0.84 mg m−2 per year) suggest that soluble Fe deposition to the Southern Ocean would have been ≥10 × modern deposition, rivalling upwelling supply.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Nature Publishing Group
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.title
Constraints on soluble aerosol iron flux to the Southern Ocean at the Last Glacial Maximum
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2015-07-23
ethz.journal.title
Nature Communications
ethz.journal.volume
6
en_US
ethz.pages.start
7850
en_US
ethz.size
9 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.identifier.nebis
007044158
ethz.publication.place
London
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02725 - Institut für Geochemie und Petrologie / Institute of Geochemistry and Petrology::03956 - Vance, Derek / Vance, Derek
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02725 - Institut für Geochemie und Petrologie / Institute of Geochemistry and Petrology::03956 - Vance, Derek / Vance, Derek
ethz.date.deposited
2017-06-11T18:36:16Z
ethz.source
ECIT
ethz.identifier.importid
imp5936535c36e7831612
ethz.ecitpid
pub:161114
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-14T17:42:12Z
ethz.rosetta.lastUpdated
2018-09-07T16:38:21Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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