Crag-and-tail landforms in outer Rijpfjorden, Nordaustlandet, Svalbard

Fransner, O.; Noormets, R.; Flink, A.E.; Hogan, K.A. ORCID: 2016 Crag-and-tail landforms in outer Rijpfjorden, Nordaustlandet, Svalbard. 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, 57-58. (Geological Society Memoir, 46).

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Streamlined sedimentary and bedrock glacial landforms are widespread on high-latitude continental shelves and in fjords. It has been shown that they are orientated in the direction of past ice flow and are indicative of fast motion linked to basal processes (e.g. Clark 1994). Elongation ratios of these landforms have been suggested to reflect past ice velocity, with higher elongation ratios being characteristic of faster ice flow (e.g. Clark 1993). However, the subglacial substrate has a considerable influence on ice flow and on the resulting glacial landforms (e.g. Heroy & Anderson 2005). Using the character and distribution of streamlined, subglacially produced landforms, the extent and dynamics of former ice sheets and ice streams has been successfully reconstructed (e.g. Ottesen et al. 2005; Dowdeswell et al. 2010; Hogan et al. 2010a, b).

Item Type: Publication - Book Section
Digital Object Identifier (DOI):
Programmes: BAS Programmes > BAS Programmes 2015 > Palaeo-Environments, Ice Sheets and Climate Change
ISBN: 9781786202680
NORA Subject Terms: Marine Sciences
Date made live: 04 Jan 2017 14:00 +0 (UTC)

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