Antiphased dust deposition and productivity in the Antarctic Zone over 1.5 million years
dc.contributor.author | Weber, ME | |
dc.contributor.author | Bailey, I | |
dc.contributor.author | Hemming, SR | |
dc.contributor.author | Martos, YM | |
dc.contributor.author | Reilly, BT | |
dc.contributor.author | Ronge, TA | |
dc.contributor.author | Brachfeld, S | |
dc.contributor.author | Williams, T | |
dc.contributor.author | Raymo, M | |
dc.contributor.author | Belt, Simon | |
dc.contributor.author | Smik, L | |
dc.contributor.author | Vogel, H | |
dc.contributor.author | Peck, VL | |
dc.contributor.author | Armbrecht, L | |
dc.contributor.author | Cage, A | |
dc.contributor.author | Cardillo, FG | |
dc.contributor.author | Du, Z | |
dc.contributor.author | Fauth, G | |
dc.contributor.author | Fogwill, CJ | |
dc.contributor.author | Garcia, M | |
dc.contributor.author | Garnsworthy, M | |
dc.contributor.author | Glüder, A | |
dc.contributor.author | Guitard, M | |
dc.contributor.author | Gutjahr, M | |
dc.contributor.author | Hernández-Almeida, I | |
dc.contributor.author | Hoem, FS | |
dc.contributor.author | Hwang, J-H | |
dc.contributor.author | Iizuka, M | |
dc.contributor.author | Kato, Y | |
dc.contributor.author | Kenlee, B | |
dc.contributor.author | OConnell, S | |
dc.contributor.author | Pérez, LF | |
dc.contributor.author | Seki, O | |
dc.contributor.author | Stevens, L | |
dc.contributor.author | Tauxe, L | |
dc.contributor.author | Tripathi, S | |
dc.contributor.author | Warnock, J | |
dc.contributor.author | Zheng, X | |
dc.date.accessioned | 2022-04-27T13:51:39Z | |
dc.date.issued | 2022-04-19 | |
dc.identifier.issn | 2041-1723 | |
dc.identifier.issn | 2041-1723 | |
dc.identifier.other | 2044 | |
dc.identifier.uri | http://hdl.handle.net/10026.1/19085 | |
dc.description.abstract |
<jats:title>Abstract</jats:title><jats:p>The Southern Ocean paleoceanography provides key insights into how iron fertilization and oceanic productivity developed through Pleistocene ice-ages and their role in influencing the carbon cycle. We report a high-resolution record of dust deposition and ocean productivity for the Antarctic Zone, close to the main dust source, Patagonia. Our deep-ocean records cover the last 1.5 Ma, thus doubling that from Antarctic ice-cores. We find a 5 to 15-fold increase in dust deposition during glacials and a 2 to 5-fold increase in biogenic silica deposition, reflecting higher ocean productivity during interglacials. This antiphasing persisted throughout the last 25 glacial cycles. Dust deposition became more pronounced across the Mid-Pleistocene Transition (MPT) in the Southern Hemisphere, with an abrupt shift suggesting more severe glaciations since ~0.9 Ma. Productivity was intermediate pre-MPT, lowest during the MPT and highest since 0.4 Ma. Generally, glacials experienced extended sea-ice cover, reduced bottom-water export and Weddell Gyre dynamics, which helped lower atmospheric CO<jats:sub>2</jats:sub> levels.</jats:p> | |
dc.format.extent | 2044- | |
dc.format.medium | Electronic | |
dc.language | en | |
dc.language.iso | eng | |
dc.publisher | Nature Research | |
dc.subject | Antarctic Regions | |
dc.subject | Atmosphere | |
dc.subject | Dust | |
dc.subject | Oceans and Seas | |
dc.subject | Seawater | |
dc.title | Antiphased dust deposition and productivity in the Antarctic Zone over 1.5 million years | |
dc.type | journal-article | |
dc.type | Journal Article | |
dc.type | Research Support, U.S. Gov't, Non-P.H.S. | |
dc.type | Research Support, Non-U.S. Gov't | |
plymouth.author-url | https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000784997300019&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008 | |
plymouth.issue | 1 | |
plymouth.volume | 13 | |
plymouth.publication-status | Published online | |
plymouth.journal | Nature Communications | |
dc.identifier.doi | 10.1038/s41467-022-29642-5 | |
plymouth.organisational-group | /Plymouth | |
plymouth.organisational-group | /Plymouth/Faculty of Science and Engineering | |
plymouth.organisational-group | /Plymouth/Faculty of Science and Engineering/School of Geography, Earth and Environmental Sciences | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA/UoA07 Earth Systems and Environmental Sciences | |
plymouth.organisational-group | /Plymouth/Research Groups | |
plymouth.organisational-group | /Plymouth/Research Groups/Marine Institute | |
plymouth.organisational-group | /Plymouth/Users by role | |
plymouth.organisational-group | /Plymouth/Users by role/Academics | |
plymouth.organisational-group | /Plymouth/Users by role/Researchers in ResearchFish submission | |
dc.publisher.place | England | |
dcterms.dateAccepted | 2022-03-25 | |
dc.rights.embargodate | 2022-4-29 | |
dc.identifier.eissn | 2041-1723 | |
dc.rights.embargoperiod | Not known | |
rioxxterms.versionofrecord | 10.1038/s41467-022-29642-5 | |
rioxxterms.licenseref.uri | http://www.rioxx.net/licenses/all-rights-reserved | |
rioxxterms.licenseref.startdate | 2022-04-19 | |
rioxxterms.type | Journal Article/Review |