Late Oligocene XRF scanner data from IODP Site 318-U1356 Willkes Land Margin, Antarctica ...

• Main Authors: Salabarnada, Ariadna, Escutia, Carlota, Röhl, Ursula, Nelson, C Hans, McKay, Robert M, Jiménez-Espejo, Francisco Jose, Bijl, Peter K, Hartman, Julian D, Ikehara, Minoru, Strother, Stephanie L, Salzmann, Ulrich, Evangelinos, Dimitris, López-Quirós, Adrián, Flores, José Abel, Sangiorgi, Francesca, Brinkhuis, Henk
• Format: Dataset
• Language: English
• Published: PANGAEA 2018
• Subjects: Sample code/label; DEPTH, sediment/rock; Aluminium peak area; Silicon peak area; Calcium peak area; Manganese peak area; Zirconium peak area; Strontium peak area; Barium peak area; Bromine/Titanium ratio; Zirconium/Titanium ratio; Zirconium/Rubidium ratio; Barium/Titanium ratio; Zirconium/Barium ratio; Calcium carbonate; Drilling/drill rig; X-ray fluorescence core scanner XRF; Estimated; Exp318; Joides Resolution; Integrated Ocean Drilling Program / International Ocean Discovery Program IODP; Antarc*; Antarctic; Antarctica; East Antarctica; Ice Sheet; Southern Ocean; Wilkes Land
• Online Access: https://dx.doi.org/10.1594/pangaea.892208; https://doi.pangaea.de/10.1594/PANGAEA.892208

Antarctic ice sheet and Southern Ocean paleoceanographic configurations during the late Oligocene are not well resolved. They are however important to understand the influence of high-latitude Southern Hemisphere feedbacks on global climate under CO2 scenarios (between 400 and 750 ppm) projected by the IPCC for this century, assuming unabated CO2 emissions. Sediments recovered by the Integrated Ocean Drilling Program (IODP) at Site U1356, offshore of the Wilkes Land margin in East Antarctica, provide an opportunity to study ice sheet and paleoceanographic configurations during the late Oligocene (26-25 Ma). Our study, based on a combination of sediment facies analysis, magnetic susceptibility, density, and X-Ray Fluorescence geochemical data, shows that glacial and interglacial sediments are continuously reworked by bottom-currents, with maximum velocities occurring during the interglacial periods. Glacial sediments record poorly ventilated, low-oxygenation bottom water conditions, interpreted to result from ... : Supplement to: Salabarnada, Ariadna; Escutia, Carlota; Röhl, Ursula; Nelson, C Hans; McKay, Robert M; Jiménez-Espejo, Francisco Jose; Bijl, Peter K; Hartman, Julian D; Strother, Stephanie L; Salzmann, Ulrich; Evangelinos, Dimitris; López-Quirós, Adrián; Flores, José Abel; Sangiorgi, Francesca; Ikehara, Minoru; Brinkhuis, Henk (2018): Paleoceanography and ice sheet variability offshore Wilkes Land, Antarctica – Part 1: Insights from late Oligocene astronomically paced contourite sedimentation. Climate of the Past, 14(7), 991-1014 ...