Subglacial meltwater channels in Marguerite Trough, western Antarctic Peninsula
Meltwater channels that have formed beneath glaciers and ice sheets have been observed on glaciated terrain, both terrestrial and submarine. Around Antarctica, channels incised into bedrock on the inner continental shelf have been found in several cross-shelf troughs that held major ice-streams during the last full-glacial (e.g. Pine Island Trough, Nitsche et al. 2014; Dotson-Getz Trough, Larter et al. 2009). The relatively widespread occurrence of meltwater channels has important implications for enhancing the flow of former ice streams over rough bedrock topography, yet questions remain regarding their timing and mode of formation. Meltwater channels from Marguerite Trough offshore of the western Antarctic Peninsula are described here (Fig. 1a).
Authors: Hogan, K.A. ORCID record for K.A. Hogan, Dowdeswell, J.A., Larter, R.D. ORCID record for R.D. Larter, O Cofaigh, C., Bartholemew, I.
Editors: Dowdeswell, J.A., Canals, M., Jakobsson, M., Todd, B.J., Dowdeswell, E.K., Hogan, K. ORCID record for K. Hogan
In: Dowdeswell, J.A., Canals, M., Jakobsson, M., Todd, B.J., Dowdeswell, E.K., Hogan, K. ORCID record for K. Hogan (eds.). Atlas of Submarine Glacial Landforms: modern, Quaternary and ancient, London, Geological Society of London, 215-216.
Privacy & Cookies Policy
Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.