Concentrations of IPSO25 in surface sediments from coastal and near-coastal Antarctic locations

• Main Authors: Belt, Simon T, Smik, Lukas, Brown, Thomas A, Kim, Jung-Hyun, Rowland, Steve J, Allen, Claire Susannah, Gal, Jong-Ku, Shin, Kyung-Hoon, Lee, Jae Il, Taylor, Kyle W R
• Format: Dataset
• Language: English
• Published: PANGAEA 2016
• Subjects: Antarctic Peninsula; ANT-II/3; ANT-III/3; ANT-IV/2; ANT-IV/3; ANT-IV/4; ANT-IX/3; ANT-VI/2; ANT-VI/3; ANT-VIII/5; ANT-VIII/6; Atka Bay; Bransfield Strait; Campaign of event; Camp Norway; Cape Fiske; Date/Time of event; DEPTH; sediment/rock; Drake Passage; Elevation of event; Event label; Filchner Shelf; Filchner Trough; Fram Strait; Gas chromatography - Mass spectrometry (GC-MS); Giant box corer; GKG; Gould Bay; Greenland Slope; Halley Bay; Ice Proxy for the Southern Ocean with 25 carbon atoms per unit sediment mass; Kapp Norvegia; King George Island; Latitude of event; Lazarev Sea; Location of event; Longitude of event; Lyddan Island; Maud Rise; Optional event label; Polarstern; Polarstern Kuppe; PS04; PS04/225; PS06/289; PS06/303; PS06/313; PS06/329; Antarc*; Antarctic; Greenland; Ice Shelves; Sea ice; Southern Ocean
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.864502; https://doi.org/10.1594/PANGAEA.864502

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...