Oxygen-isotope records, age-model results and sedimentation rates of core MD88-784

• Other Authors: Armand, Leanne (hasPrincipalInvestigator), De Deckker, Patrick (collaborator), De Deckker, Patrick, Prof (collaborator), Department of Geology, The Australian National University (ANU) (hasAssociationWith), Pichon, Jean-Jacques (collaborator), The Australian National University (ANU) (hasAssociationWith), Université of Bordeaux I (hasAssociationWith)
• Format: Dataset
• Language: unknown
• Published: Australian Ocean Data Network
• Subjects: climatologyMeteorologyAtmosphere; environment; FORAMINIFERS; EARTH SCIENCE; BIOLOGICAL CLASSIFICATION; PROTISTS; AMOEBOIDS; OXYGEN ISOTOPES; PALEOCLIMATE; OCEAN/LAKE RECORDS; SEDIMENTATION; OCEANS; MARINE SEDIMENTS; Age model; Neogloboquadrina pachyderma; Antarctic; Southern Ocean; Tasman Fracture Zone; Antarc*; Antarctique*; Institute of Antarctic and Southern Ocean Studies; Sea ice
• Online Access: https://researchdata.edu.au/oxygen-isotope-records-md88-784/679848

Maintenance and Update Frequency: notPlanned Statement: Sediment was recovered using a Kullenberg core, aboard the research vessel Marion DuFresne. The method used to produce diatom slides from sediment samples is described in the 'methodology' document uploaded with this record. Statement: Sediment samples for analysis were taken at 10cm intervals from the sediment surface down to a depth of 490cm. The core age model must be considered provisional since additional independent tie-points to age have not been made for the cores, such as AMS 14C dating of the foraminifera in the surface sediments, nor was the oxygen isotopic data of the cores at high resolution. The core is considered to have lost the uppermost section of the core that corresponds to the last 3kyr. Parameters: Core depth (cm), 18O isotope of N. pachyderma, tie points in SPECMAP age scale (Ka), corresponding SPECMAP age scale (Ka), linear sedimentation rate (cm/Ka), analyseries extrapolated age scale (Ka) at 10cm interval, core sample dry weights (gm), field of views counted, diatom subtotal count, number of diatom frustules (x1000000)/gm of dry weight, diatom tranfer function factor 1 loading, diatom tranfer function factor 2 loading, diatom tranfer function factor 3 loading, diatom tranfer function factor 4 loading, diatom tranfer function factor 5 loading, diatom tranfer function factor 6 loading. Credit Centre des Faibles Radioactivities mixte CNRS CEA (France) Credit Institute of Antarctic and Southern Ocean Studies (IASOS) Credit Institut Français pour la Recherche et Technologie Polaires (IFRTP) Credit Terres Australes et Antarctiques Françaises (TAAF) Credit Australian Postgraduate Research Awards (APRA) Purpose To reconstruct the first sea-surface temperature and sea-ice record history of the Southern Ocean south of Australia. Core MD88-784 was recovered during the French ASPARA IV cruise in 1988, aboard the Marion Dufresne. The core was located on the Tasman Fracture Zone of the Mid-Ocean Ridge, within the Polar Front ...