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This study of landscape evolution presents both new modern and palaeo processlandform data, and analyses the behaviour of the Antarctic Peninsula Ice Sheet through the Last Glacial Maximum (LGM), the Holocene and to the present day. Six sediment-landform assemblages re described and interpreted for Ulu Peninsula, James Ross Island, NE Antarctic Peninsula: (1) the Glacier Ice and Snow Assemblage; (2) the Glacigenic Assemblage, which relates to LGM sediments and comprises both erratic-poor and erratic-rich drift, deposited by cold-based and wetbased ice and ice streams respectively; (3) the Boulder Train Assemblage, deposited during a Mid-Holocene glacier readvance; (4) the Ice-cored Moraine Assemblage, found in front of small irque glaciers; (5) the Paraglacial Assemblage including scree, pebble-boulder lags, and littoral and fluvial processes; and (6) the Periglacial Assemblage including rock glaciers, protalus ramparts, blockfields, solifluction lobes and extensive patterned ground. The interplay between glacial, paraglacial and periglacial processes in this semi-arid polar environment is important in understanding polygenetic landforms. Crucially, cold-based ice was capable of sediment and landform genesis and modification. This landsystem model can aid the interpretation of past environments, but also provides new data to aid the reconstruction of the last ice sheet to overrun James Ross Island. © The Geological Society of London 2013.
Author(s): Davies BJ, Glasser NF, Carrivick JL, Hambrey MJ, Smellie JL, Nyvlt D
Publication type: Article
Publication status: Published
Journal: Geological Society Special Publication
Year: 2013
Volume: 381
Issue: 1
Pages: 353-395
Online publication date: 19/04/2013
ISSN (print): 0305-8719
ISSN (electronic): 2041-4927
Publisher: Geological Society Publishing House
URL: https://doi.org/10.1144/SP381.1
DOI: 10.1144/SP381.1
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