Abstract
Hovgaard Ridge is an 1800 m high bathymetric high in the Fram Strait, the only deep-water gateway between the Arctic Ocean and the other World’s oceans. The slopes of the ridge provide evidence of various types of sediment reworking, including (1) up to 12 km wide single and merged slide scars with maximum ~30 m high headwalls and some secondary escarpments; (2) maximum 3 km wide and 130 m deep slide scars with irregular internal morphology, partly narrowing towards the foot of the slope; (3) up to 130 m deep, 1.5 km wide and maximum 8 km long channels/gullies originating from areas of increasing slope angle at the margins of a plateau on top of the ridge. Most slide scars result presumably from retrogressive failure related to weak layers in contourites or ash. The most likely trigger mechanism is seismicity related to tectonic activity within the nearby mid-ocean fracture zone. Gully/channel formation is suggested to result from cascading water masses and/or from sediment gravity flows originating from failure at the slope break after winnowing on the plateau of the ridge.
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References
Arndt JE, Forwick M (accepted) Deep-water iceberg ploughmarks on Hovgaard Ridge, Fram Strait. In: Dowdeswell JA et al (eds) Atlas of submarine glacial landforms: modern, quaternary and ancient. Geological Society, London, Memoirs
Arndt JE, Niessen F, Jokat W, Dorschel B (2014) Deep water paleo-iceberg scouring on top of Hovgaard Ridge – Arctic Ocean. Geophys Res Lett. doi:10.1002/2014GL060267
Baeten NJ, Laberg JS, Forwick M, Vorren TO, Vanneste M, Forsberg CF, Kvalstad TJ, Ivanov M (2013) Morphology and origin of smaller-scale mass movements on the continental slope off northern Norway. Geomorphology 187:122–134
Baeten NJ, Laberg JS, Vanneste M, Forsberg CF, Kvalstad TJ, Forwick M, Vorren TO, Haflidason H (2014) Origin of shallow submarine mass movements and their glide planes – sedimentological and geotechnical analyses from the continental slope off northern Norway. J Geophys Res B (Earth Surf) 119:2335–2360. doi:10.1002/2013/JF003068
Elger J, Berndt C, Krastel S, Piper DJW, Gross F, Spielhagen RF, Meyer S (2015) The Fram Slide off Svalbard: a submarine landslide on a low-sedimentation-rate glacial continental margin. J Geol Soc 172:153–156
Engen Ø, Faleide JI, Dyreng TK (2008) Opening of the Fram Strait gateway: a review of plate tectonic contraints. Tectonophysics 450:51–69
Fahrbach E, Meincke J, Østerhus S, Rohardt G, Schauer U, Tverberg V, Verduin J (2001) Direct measurements of volume transports through Fram Strait. Polar Res 20:217–224
Gales JA, Forwick M, Laberg JS, Vorren TO, Larter RD, Graham AGC, Baeten NJ, Amundsen HB (2013a) Arctic and antarctic submarine gullies – a comparison of high latitude continental margins. Geomorphology 201:449–461
Gales JA, Larter RD, Mitchell NC, Dowdeswell JA (2013b) Geomorphic signature of antarctic submarine gullies: implications for continental slope processes. Mar Geol 337:112–124
Gascard JC, Richez C, Rouault C (1995) New insights on large-scale oceanography in Fram Strait: the West Spitsbergen Current. In: Smith W, Grebmeier J (eds) Arctic oceanography: marginal ice zones and continental shelves. Coastal Estuarine Studies, AGU, Washington, DC, pp 131–182
Haflidason H, Sejrup HP, Nygård A, Mienert J, Bryn P, Lien R, Forsberg CF, Berg K, Masson D (2004) The Storegga Slide: architecture, geometry and slide development. Mar Geol 213:201–234
Harders R, Kutterolf S, Hensen C, Moerz T, Brueckmann W (2010) Tephra layers: a controlling factor on submarine translational sliding? Geochem Geophys Geosyst. doi:10.1029/2009GC002844
Jakobsson M et al (2012) The International Bathymetric Chart of the Arctic Ocean (IBCAO) Version 3.0. Geophys Res Lett. doi:10.1029/2012GL052219
Kaminski M, Niessen F, PS87 Shipboard Geoscience Party (2015) Agglutinated foraminifera from the Hovgård Ridge, Fram Strait, west of Spitsbergen: evidence for a deep bottom current. J Geol Soc Pol 85:309–320
Kristoffersen Y, Coakley B, Jokat W, Edwards M, Brekke H, Gjengedal J (2004) Seadbed erosion on the Lomonosov Ridge, central Arctic Ocean: a tale of deep draft icebergs in the Eurasia Basin and the influence of Atlantic water inflow on iceberg motion. Paleoceanography. doi:10.1029/2003PA000985
Kristoffersen Y, Coakley BJ, Hall JK, Edwards M (2007) Mass wasting on the submarine Lomonosov Ridge, central Arctic Ocean. Mar Geol 243:132–142
Kvalstad TJ, Andresen L, Forsberg CF, Berg K, Bryn P, Wangen M (2005) The Storegga slide: evaluation of triggering sources and slide mechanisms. Mar Pet Geol 22:245–256
Laberg JS, Camerlenghi A (2008) The significance of contourites for submarine slope stability. In: Rebesco M, Camerlenghi A (eds) Developments in sedimentology 60: contourites. Elsevier, Amsterdam, pp 537–556
Laberg JS, Vorren TO (1995) Late Weichselian submarine debris flow deposits on the Bear Island Trough Mouth Fan. Mar Geol 127:45–72
Laberg JS, Kawamura K, Amundsen H, Baeten N, Forwick M, Rydningen TA, Vorren TO (2014) A submarine landslide complex affecting the Jan Mayen Ridge, Norwegian-Greenland Sea: slide-scar morphology and processes of sediment evacuation. Geo-Mar Lett 34:51–58
Läderach C, Schlindwein V, Schenke HW, Jokat W (2011) Seismicity and active tectonic processes in the ultra-slow spreading Lena Trough, Arctic Ocean. Geophys J Int 184:1354–1370
Micallef A, Mountjoy JJ, Canals M, Lastras G (2012) Deep-seated bedrock landslides and submarine canyon evolution in an active tectonic margin: cook strait, New Zealand. In: Yamada Y et al (eds) Advances in natural and technological hazards research, vol 31. Springer, Dordrecht
Myhre AM, Eldholm O (1988) The Western Svalbard margin (74°–80°N). Mar Pet Geol 5:134–156
Myhre AM, Thiede J, Firth J (1993) Ocean Drilling Program Leg 151 Scientific Prospectus: North Atlantic Arctic Gateways. Ocean Drilling Program, College Station, 79 pp
Rise L, Bøe R, Riis F, Bellec VK, Laberg JS, Eidvin T, Elvenes S, Thorsnes T (2013) The Lofoten-Vesterålen continental margin, North Norway: canyons and mass-movement activity. Mar Pet Geol 45:134–149
Schauer U, Fahrbach E, Østerhus S, Rohardt G (2004) Arctic warming through the Fram Strait: oceanic heat transport from 3 years of measurements. J Geophys Res. doi:10.1029/2003JC001823
Shipboard Scientific Party (1995) Site 908. In: Myhre AM, Thiede T, Firth JV et al (eds) Proc. ODP init. repts, vol 151. Ocean Drilling Program, College Station, pp 113–158
Solheim A, Berg K, Forsberg CF, Bryn P (2005) The Storegga Slide complex: repetitive large scale sliding with similar cause and development. Mar Pet Geol 22:97–107
Vanneste M, Mienert J, Bünz S (2006) The Hinlopen Slide: a giant, submarine slope failure on the northern Svalbard margin, Arctic Ocean. Earth Planet Sci Lett 245:373–388
Vorren TO, Laberg JS, Blaume F, Dowdeswell JA, Kenyon NH, Mienert J, Rumohr J, Werner F (1998) The Norwegian-Greenland Sea continental margins: morphology and Late Quaternary sedimentary processes and environment. Quat Sci Rev 17:273–302
Wessel P, Smith WHF (1998) New, improved version of generic mapping tools realeased. EOS Trans Am Geophys Union. doi:10.1029/98EO00426
Winkelmann D, Stein R (2007) Triggering of the Hinlopen/Yermak Megaslide in relation to paleoceanography and climate history of the continental margin north of Spitsbergen. Geochem Geophys Geosyst. doi:10.1029/2006GC001485
Acknowledgements
The data were collected during the teaching cruise GEO-8144/3144 “Past and present geological processes and climate: from fjords to the deep sea” arranged by the Ph.D. Trainee School in Arctic Marine Geology and Geophysics (AMGG) at the Department of Geology, University of Tromsø – The Arctic University of Norway . We thank the captain and crew of R/V Helmer Hanssen, as well as Steinar Iversen, Jan P. Holm and the participating students for their support during and after the cruise. The regional bathymetry in Fig. 25.1a was visualized using Generic Mapping Tools (GMT; Wessel and Smith 1998). Finally, we thank Reidulv Bøe and Maarten Vanneste for their constructive reviews of the manuscript, as well as co-editor Sebastian Krastel for his support.
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Forwick, M., Laberg, J.S., Husum, K., Gales, J.A. (2016). Submarine Mass Wasting on Hovgaard Ridge, Fram Strait, European Arctic. In: Lamarche, G., et al. Submarine Mass Movements and their Consequences. Advances in Natural and Technological Hazards Research, vol 41. Springer, Cham. https://doi.org/10.1007/978-3-319-20979-1_25
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