Marine Science Faculty Publications

Crag-and-tail Features on the Amundsen Sea Continental Shelf, West Antarctica

Document Type


Publication Date


Digital Object Identifier (DOI)


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.

Was this content written or created while at USF?


Citation / Publisher Attribution

Geological Society, London, Memoirs, v. 46, p. 199-200