(Table 2) AMS radiocarbon dates from sediment cores obtained during James Clark Ross cruise JR142, Kvitøya Trough ...

• Main Authors: Hogan, Kelly A, Dowdeswell, Julian A, Noormets, R, Evans, Jeffrey, Ó Cofaigh, Colm, Jakobsson, Martin
• Format: Dataset
• Language: English
• Published: PANGAEA 2010
• Subjects: Event label; Latitude of event; Longitude of event; Core; DEPTH, sediment/rock; Age, dated material; Age, dated; Age, dated standard deviation; Gravity corer; Age, 14C AMS; JR20060728; James Clark Ross; International Polar Year 2007-2008 IPY; Barents Sea; Ice Sheet; International Polar Year; IPY; Kvitøya
• Online Access: https://dx.doi.org/10.1594/pangaea.811288; https://doi.pangaea.de/10.1594/PANGAEA.811288

High-resolution geophysical and sediment core data are used to investigate the pattern and dynamics of former ice flow in Kvitøya Trough, northwestern Barents Sea. A new swath-bathymetric dataset identifies three types of submarine landform in the study area (streamlined landforms, meltwater channels and cavities, iceberg scours). Subglacially produced streamlined landforms provide a record of ice flow through Kvitøya Trough during the last glaciation. Flow directions are inferred from the orientations of streamlined landforms (drumlins, crag-and-tail features). Ice flowed northward for at least 135 km from an ice divide at the southern end of Kvitøya Trough. A large channel-cavity system incised into bedrock in the southern trough indicates that subglacial meltwater was present at the former ice-sheet base. Modest landform elongation ratios and a lack of mega-scale glacial lineations suggest that, although ice in Kvitøya Trough was melting at the bed and flowed faster than the likely thin and cold-based ice ... : Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150 ...