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

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 channel...

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Bibliographic Details
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
Description
Summary: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 ...

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