Late Pleistocene ice export events into the Arctic Ocean from the M'Clure Strait Ice Stream, Canadian Arctic Archipelago

Stokes, Chris R.; Clark, Chris D.; Darby, Dennis A.; Hodgson, D A

doi:10.1016/j.gloplacha.2005.06.001

Cited by 109 publications

(90 citation statements)

References 64 publications

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“…The broad, overdeepened troughs traversing the western part of the CAA (Amundsen Gulf, M'Clure Strait) and, possibly, the partially buried Mackenzie Trough are the likely outlets for large Laurentide ice streams capable of feeding ice shelves in the Canada Basin (Figure 1). This interpretation is consistent with the glacial geology and geomorphology of these troughs and adjacent areas (Blasco et al, 1990;Dyke et al, 1992;Stokes et al, 2005Stokes et al, , 2006 and with models of ice discharge (Bigg and Wadley, 2001), all indicating the likelihood of large ice streams channeling the northwest margin of the Laurentide Ice Sheet. The CAA provenance of the ice that contacted the ABM is corroborated by the composition of coarse clastic material in diamict and lag deposits along this margin (Rodeick, 1979;Naidu and Mowatt, 1992), although the exact origin of these deposits (subglacial or iceberg-derived) still needs to be identified.…”

Section: Ice Flow Provenance and Trajectorysupporting

confidence: 82%

Seafloor evidence for ice shelf flow across the Alaska–Beaufort margin of the Arctic Ocean

Engels

Polyak

Johnson

2007

Earth Surf Processes Landf

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Section: Ice Flow Provenance and Trajectorysupporting

confidence: 82%

Seafloor evidence for ice shelf flow across the Alaska–Beaufort margin of the Arctic Ocean

Engels

Polyak

Johnson

2007

Earth Surf Processes Landf

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“…Some studies have focussed on potential correlative events from smaller ice streams at the eastern margin of the LIS, such as those draining into Baffin Bay (Andrews et al, 1998; or the continental shelf off Nova Scotia (Piper and Skene, 1998). Further afield, IRD events have also been detected in the Arctic Ocean (Darby et al, 2002;Darby, 2003) and attributed to source areas in the Canadian Arctic Archipelago (Stokes et al, 2005) and Eurasia . Although obtaining precise ages for Arctic…”

Section: Noted That "It Is Not Known Whether or Where Ice Streams Eximentioning

confidence: 99%

On the reconstruction of palaeo-ice sheets: Recent advances and future challenges

Stokes

Tarasov

Blomdin

et al. 2015

Quaternary Science Reviews

148

104

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“…Conversely, the location of ice streams can be used to tune models that require parameterisation of basal boundary conditions. Discovery of paleo-ice streams also provides clues to where major iceberg export events occurred, which has important implications for ocean circulation and paleoclimate (Andrews and Tedesco, 1992;Stokes et al, 2005). The aim of this synopsis is to provide an up-to-date map of paleo-ice streams in the Laurentide Ice Sheet, based on published sources where authors have suggested streaming and a concerted mapping campaign, by the authors, using satellite images and aerial photography.…”

Section: Introductionmentioning

confidence: 99%

Ice Streams of the Laurentide Ice Sheet

Winsborrow

Clark

Stokes

2006

gpq

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Ice streams had a major influence on the configuration and the stability of the Laurentide Ice Sheet. Their identification is crucial for an understanding of ice sheet behaviour and their importance is reflected by the recent increase in paleo-ice stream research. This paper provides a synopsis of Laurentide paleo-ice streams, compiled from published sources and our mapping from satellite imagery and aerial photography. In total, 49 hypothesised ice streams are reviewed, and categorised according to the strength of evidence for streaming and knowledge of their extent. A map of Laurentide paleo-ice streams is presented, along with tables documenting the nature of evidence on which streaming behaviour has been invoked. The distribution of ice streams demonstrates the spatial organisation of fast ice flow, and overlapping imprints document major changes in ice flow during retreat. We note that Laurentide paleo-ice streams exhibit a much greater range in size than those currently operating in Antarctica.Les courants glaciaires ont eu une influence déterminante sur la configuration et la stabilité de l’Inlandsis Laurentidien. Leur identification est cruciale pour la compréhension du comportement de la calotte glaciaire et l’intensification récente de la recherche sur les courants paléoglaciaires témoigne de leur importance. Dans cet article, nous présentons une vue d’ensemble des courants paléoglaciaires de l’Inlandsis Laurentidien, compilée à partir de la revue des sources publiées et de notre cartographie établie à l’aide d’imagerie satellite et de photographies aériennes. En tout, nous avons étudié 49 hypothèses de courants glaciaires. Nous les avons classées selon l’importance du témoignage de leur écoulement et la connaissance que nous avons de leur extension. Nous proposons une carte des courants paléoglaciaires laurentidiens ainsi que des tableaux décrivant la nature de la preuve permettant d’établir le comportement de l’écoulement. La répartition des courants glaciaires montre l’organisation spatiale d’un écoulement glaciaire rapide et le chevauchement des empreintes traduit les changements de l’écoulement durant son retrait. Nous notons que la taille des courants paléoglaciaires laurentidiens est plus importante que celle des courants glaciaires actuels de l’Antarctique

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Late Pleistocene ice export events into the Arctic Ocean from the M'Clure Strait Ice Stream, Canadian Arctic Archipelago

Cited by 109 publications

References 64 publications

Seafloor evidence for ice shelf flow across the Alaska–Beaufort margin of the Arctic Ocean

Seafloor evidence for ice shelf flow across the Alaska–Beaufort margin of the Arctic Ocean

On the reconstruction of palaeo-ice sheets: Recent advances and future challenges

Ice Streams of the Laurentide Ice Sheet

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