dc.contributor.author |
Frisia, S |
en |
dc.contributor.author |
Weyrich, LS |
en |
dc.contributor.author |
Hellstrom, J |
en |
dc.contributor.author |
Borsato, A |
en |
dc.contributor.author |
Golledge, NR |
en |
dc.contributor.author |
Anesio, AM |
en |
dc.contributor.author |
Bajo, P |
en |
dc.contributor.author |
Drysdale, RN |
en |
dc.contributor.author |
Augustinus, Paul |
en |
dc.contributor.author |
Rivard, C |
en |
dc.contributor.author |
Cooper, A |
en |
dc.date.accessioned |
2017-10-01T21:22:09Z |
en |
dc.date.issued |
2017-06-09 |
en |
dc.identifier.citation |
Nature Communications 8:9 pages Article number 15425 09 Jun 2017 |
en |
dc.identifier.issn |
2041-1723 |
en |
dc.identifier.uri |
http://hdl.handle.net/2292/35820 |
en |
dc.description.abstract |
Marine sediment records suggest that episodes of major atmospheric CO2 drawdown during the last glacial period were linked to iron (Fe) fertilization of subantarctic surface waters. The principal source of this Fe is thought to be dust transported from southern mid-latitude deserts. However, uncertainty exists over contributions to CO2 sequestration from complementary Fe sources, such as the Antarctic ice sheet, due to the difficulty of locating and interrogating suitable archives that have the potential to preserve such information. Here we present petrographic, geochemical and microbial DNA evidence preserved in precisely dated subglacial calcites from close to the East Antarctic Ice-Sheet margin, which together suggest that volcanically-induced drainage of Fe-rich waters during the Last Glacial Maximum could have reached the Southern Ocean. Our results support a significant contribution of Antarctic volcanism to subglacial transport and delivery of nutrients with implications on ocean productivity at peak glacial conditions. |
en |
dc.format.medium |
Electronic |
en |
dc.language |
eng |
en |
dc.publisher |
Nature Publishing Group |
en |
dc.relation.ispartofseries |
Nature Communications |
en |
dc.rights |
Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from http://www.sherpa.ac.uk/romeo/issn/2041-1723/ |
en |
dc.rights.uri |
https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm |
en |
dc.rights.uri |
https://creativecommons.org/licenses/by/4.0/ |
en |
dc.title |
The influence of Antarctic subglacial volcanism on the global iron cycle during the Last Glacial Maximum |
en |
dc.type |
Journal Article |
en |
dc.identifier.doi |
10.1038/ncomms15425 |
en |
pubs.volume |
8 |
en |
dc.description.version |
VoR - Version of Record |
en |
dc.rights.holder |
Copyright: The author |
en |
dc.identifier.pmid |
28598412 |
en |
pubs.publication-status |
Published |
en |
dc.rights.accessrights |
http://purl.org/eprint/accessRights/OpenAccess |
en |
pubs.subtype |
Article |
en |
pubs.elements-id |
632457 |
en |
pubs.org-id |
Science |
en |
pubs.org-id |
School of Environment |
en |
dc.identifier.eissn |
2041-1723 |
en |
pubs.number |
15425 |
en |
pubs.record-created-at-source-date |
2017-10-02 |
en |
pubs.dimensions-id |
28598412 |
en |