Source identification and distribution reveals the potential of the geochemical Antarctic sea ice proxy IPSO25
dc.contributor.author | Belt, Simon | |
dc.contributor.author | Smik, L | |
dc.contributor.author | Brown, Thomas | |
dc.contributor.author | Kim, JH | |
dc.contributor.author | Rowland, Steven | |
dc.contributor.author | Allen, CS | |
dc.contributor.author | Gal, JK | |
dc.contributor.author | Shin, KH | |
dc.contributor.author | Lee, JI | |
dc.contributor.author | Taylor, KW | |
dc.date.accessioned | 2016-08-31T16:21:20Z | |
dc.date.available | 2016-08-31T16:21:20Z | |
dc.date.issued | 2016-08-30 | |
dc.identifier.issn | 2041-1723 | |
dc.identifier.issn | 2041-1723 | |
dc.identifier.other | 12655 | |
dc.identifier.uri | http://hdl.handle.net/10026.1/5398 | |
dc.description.abstract |
The presence of a di-unsaturated highly branched isoprenoid (HBI) lipid biomarker (diene II) in Southern Ocean sediments has previously been proposed as a proxy measure of palaeo Antarctic sea ice. Here we show that a source of diene II is the sympagic diatom Berkeleya adeliensis Medlin. Furthermore, the propensity for B. adeliensis to flourish in platelet ice is reflected by an offshore downward gradient in diene II concentration in >100 surface sediments from Antarctic coastal and near-coastal environments. Since platelet ice formation is strongly associated with super-cooled freshwater inflow, we further hypothesize that sedimentary diene II provides a potentially sensitive proxy indicator of landfast sea ice influenced by meltwater discharge from nearby glaciers and ice shelves, and re-examination of some previous diene II downcore records supports this hypothesis. The term IPSO25-Ice Proxy for the Southern Ocean with 25 carbon atoms-is proposed as a proxy name for diene II. | |
dc.format.extent | 0-0 | |
dc.format.medium | Electronic | |
dc.language | en | |
dc.language.iso | en | |
dc.publisher | Nature Research (part of Springer Nature) | |
dc.subject | 0405 Oceanography | |
dc.subject | 0406 Physical Geography and Environmental Geoscience | |
dc.subject | 0402 Geochemistry | |
dc.title | Source identification and distribution reveals the potential of the geochemical Antarctic sea ice proxy IPSO25 | |
dc.type | journal-article | |
dc.type | Journal Article | |
dc.type | Research Support, Non-U.S. Gov't | |
plymouth.author-url | http://www.ncbi.nlm.nih.gov/pubmed/27573030 | |
plymouth.issue | 0 | |
plymouth.volume | 7 | |
plymouth.publication-status | Published | |
plymouth.journal | Nature Communications | |
dc.identifier.doi | 10.1038/ncomms12655 | |
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 | 2016-07-15 | |
dc.identifier.eissn | 2041-1723 | |
dc.rights.embargoperiod | No embargo | |
rioxxterms.versionofrecord | 10.1038/ncomms12655 | |
rioxxterms.licenseref.uri | http://www.rioxx.net/licenses/all-rights-reserved | |
rioxxterms.licenseref.startdate | 2016-08-30 | |
rioxxterms.type | Journal Article/Review | |
plymouth.oa-location | https://www.nature.com/articles/ncomms12655 |