Crag-and-tail features on the Amundsen Sea continental shelf, West Antarctica

On parts of glaciated continental margins, especially the inner shelves around Antarctica, grounded ice has removed pre-existing sedimentary cover, leaving subglacial bedforms on eroded substrates (Anderson et al. 2001; Wellner et al. 2001). While the dominant subglacial bedforms often follow a distinct, relatively uniform pattern that can be related to overall trends in palaeo-ice flow and substrate geology (Wellner et al. 2006), others are more randomly distributed and may reflect local substrate variations. Here we describe and discuss examples of large, isolated crag-and-tail features that are recognized on the Amundsen Sea continental shelf.

Details

Publication status:
Published
Author(s):
Authors: Nitsche, F. O., Larter, R. D., Gohl, K., Graham, A. G. C., Kuhn, G.

Editors: Dowdeswell, J.A., Canals, M., Jakobsson, M., Todd, B.J., Dowdeswell, E.K., Hogan, K.A.

On this site: Kelly Hogan, Robert Larter
Date:
1 January, 2016
Journal/Source:
In: Dowdeswell, J.A., Canals, M., Jakobsson, M., Todd, B.J., Dowdeswell, E.K., Hogan, K.A. (eds.). Atlas of submarine glacial landforms: modern, Quaternary and ancient, London, Geological Society of London, 199-200.
Page(s):
199-200
Digital Object Identifier (DOI):
https://doi.org/10.1144/M46.2