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    Grounding-zone wedges and mega-scale glacial lineations in the Mertz Trough, East Antarctica

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    Date
    2016-11
    Author
    McMullen, Kate  Concept link
    Domack, Eugene  Concept link
    Leventer, Amy  Concept link
    Lavoie, Caroline  Concept link
    Canals, Miquel  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/8612
    As published
    https://doi.org/10.1144/M46.175
    Abstract
    Glacial erosion and deposition have shaped the Mertz Trough, East Antarctica, where seafloor grounding-zone wedges (GZWs) are associated with mega-scale glacial lineations (MSGLs) (McMullen et al. 2006). GZWs form along grounded glacial margins constrained by ice shelves during stillstands and consist of wedge-shaped glacially transported sediment (Powell & Domack 2002). MSGLs are parallel elongate bedforms that typically form in soft sediments beneath rapidly flowing ice streams (Clark 1993; Canals et al. 2000; Clark et al. 2003). They are found in glacial troughs, usually parallel to trough margins. MSGLs are generally 6 to >100 km long, 200–1300 m wide and spaced 0.3–5 km apart, crest-to-crest (Clark et al. 2003; McMullen et al. 2006).
    Description
    Author Posting. © The Author(s), 2016. This is the author's version of the work. It is posted here under a nonexclusive, irrevocable, paid-up, worldwide license granted to WHOI. It is made available for personal use, not for redistribution. The definitive version was published in Geological Society, London, Memoirs 46 (2016): 241-242, doi:10.1144/M46.175.
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    Suggested Citation
    Preprint: McMullen, Kate, Domack, Eugene, Leventer, Amy, Lavoie, Caroline, Canals, Miquel, "Grounding-zone wedges and mega-scale glacial lineations in the Mertz Trough, East Antarctica", 2016-11, https://doi.org/10.1144/M46.175, https://hdl.handle.net/1912/8612
     
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