Abstract
In this manuscript, we present the first results of integrated slope stability studies to investigate smaller-scale mass movement processes in different physiographic settings of Norway. These include coastal areas (Sørfjord, Finneidfjord), and pristine open ocean settings in intermediate (Vesterålen) and deep waters (Lofoten) on the Norwegian margin. Triggers, pre-conditioning factors and sedimentary processes associated with these landslides are currently not well constrained.
The landslides occur either in clusters or isolated, and have variable geomorphologic expressions and run-out. These smaller landslides appear to be comparatively recent phenomena. However, failures likely happened repeatedly and recurrence may affect coastal communities or jeopardize offshore installations. New data indicate that the landslides developed within thin, gently-dipping sediment units that served as slip planes. Some soil samples from these units may show strain-softening behaviour, higher plasticity and higher sensitivity compared to other units. The slide-prone layers in Sørfjord can furthermore be related to specific depositional processes. Shallow gas – although clearly present in Sørfjord – is not considered a key factor.
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References
Baeten N, Laberg JS, Forwick M, Vorren TO, Ivanov M, Vanneste M, Forsberg CF, Kvalstad TJ (2011) Small-scale mass wasting on the continental slope offshore Lofoten, Northern Norway. EGU2011. EGU, Vienna
Bryn P, Berg K, Forsberg CF, Solheim A, Kvalstad TJ (2005) Explaining the Storegga slide. Mar Petrol Geol 22(1–2):11–19
Corner G (2006) A transgressive-regressive model of fjord-valley fill: stratigraphy, facies and depositional controls. In: Dalrymple RW, Leckie DA, Tillman RW (eds) Incised valleys in time and space. Society of Sedimentary Geology (SEPM), Tulsa, pp 161–178
Dan G, Sultan N, Savoye B (2007) The 1979 Nice harbour catastrophe revisited: trigger mechanism inferred from geotechnical measurements and numerical modelling. Mar Geol 245(1–4):40–64
Forwick M, Vorren TO (2012) Submarine mass wasting in Isfjorden, Spitsbergen. In: Yamada Y et al (eds) Submarine mass movements and their consequences, vol. 31, Advances in natural and technological hazards research. Springer, Dordrecht, pp 711–722
Haflidason H, De Alvario MM, Nygård A, Sejrup HP, Laberg JS (2007) Holocene sedimentary processes in the Andøya Canyon system, north Norway. Mar Geol 246:86–104
Hjelstuen BO, Sejrup HP, Haflidason H, Berg K, Bryn P (2004) Neogene and Quaternary depositional environments on the Norwegian continental margin, 62°N-68°N. Mar Geol 213(1–4):257–276
Kvalstad TJ, Andresen L, Forsberg CF, Berg K, Bryn P, Wangen M (2005) The Storegga slide: evaluation of triggering sources and slide mechanics. Mar Petrol Geol 22(1–2):245–256
L’Heureux J-S, Steiner A, Longva O, Chand S, Vanneste M, Kopf A, Haflidason H, Kvalstad TJ, Forsberg CF, Vardy ME (2012) Identification of weak layers and their role for the stability of slopes at Finneidfjord, northern Norway. In: Yamada Y et al (eds) Submarine mass movements and their consequences, vol. 31, Advances in natural and technological hazards research. Springer, Dordrecht, pp 321–330
Laberg JS, Vorren TO (2000) The Trænadjupet slide, offshore Norway – morphology, evacuation and triggering mechanisms. Mar Geol 171(1–4):95–114
Laberg JS, Vorren TO (2004) Weichselian and Holocene growth of the northern high-latitude Lofoten Contourite Drift on the continental slope of Norway. Sediment Geol 164(1–2):1–17
Laberg JS, Stoker MS, Dahlgren KIT, de Haas H, Haflidason H, Hjelstuen BO, Nielsen T, Shannon PM, Vorren TO, van Weering TCE, Ceramicola S (2005) Cenozoic alongslope processes and sedimentation on the NW European Atlantic margin. Mar Petrol Geol 22(9–10):1069–1088
Laberg JS, Guidard S, Mienert J, Vorren TO, Haflidason H, Nygard A (2007) Morphology and morphogenesis of a high-latitude canyon; the Andoya Canyon, Norwegian Sea. Mar Geol 246(2–4):68–85
Locat J, Martin F, Locat P, Leroueil S, Levesque C, Konrad J-M, Urgeles R, Canals M, Duchesne MJ (2003) Submarine mass movements in the upper Saguenay Fjord (Québec, Canada), triggered by the 1663 earthquake. In: Locat J, Mienert J (eds) Submarine mass movements and their consequences, vol 19, Advances in natural and technological hazards research. Kluwer Academic, Dordrecht, pp 509–520
Longva O, Janbu N, Blikra LH, Bøe R (2003) The 1996 Finneidfjord slide: seafloor failure and slide dynamics. In: Locat J, Mienert J (eds) Submarine mass movements and their consequences, vol 19, Advances in natural and technological hazards research. Kluwer Academic, Dordrecht, pp 521–530
Rise L, BellecV, Bøe R, Thorsnes T (2009) The Lofoten-Vesterålen continental margin, North Norway: Canyons and mass-movement activity. In: 1st international conference on seafloor mapping for geohazard assessment, Ischia, 2009
Rise L, Chand S, Haflidason H, L’Heureux J-S, Hjelstuen BO, Bellec V, Longva O, Brendryen J, Vanneste M, Bøe R (2012) Investigation of landslides at the upper continental slope off Vesterålen, North Norway. In: Yamada Y et al (eds) Submarine mass movements and their consequences, vol. 31, Advances in natural and technological hazards research, Springer, Dordrecht, pp 167–176
Rosenquist IT (1953) Considerations on the sensitivity of Norwegian quick clays. Geotechnique 3:195–200
Solheim A, Berg K, Forsberg CF, Bryn P (2005) The Storegga slide complex: repetitive large scale sliding with similar cause and development. Mar Petrol Geol 22(1–2):97–107
Steiner A, L’Heureux J-S, Longva O, Lange M, Haflidason H, Vanneste M, Kopf A (2012) In-situ free-fall piezocone penetrometer for characterizing soft and sensitive clays at Finneidfjord (northern Norway). In: Yamada Y et al (eds) Submarine mass movements and their consequences, vol. 31, Advances in natural and technological hazards research. Springer, Dordrecht, pp 99–109
Vardy ME, L’Heureux J-S, Vanneste M, Chand S, Longva O, Haflidason H, Forsberg CF, Brendryen J, Steiner A, Kreiter S (in preparation) Integrated geophysical and geotechnical investigation of a shallow, retrogressive, near-shore landslide, Finneidfjord, Norway. Near Surface Geophysics, Speciall Issue on Marine Engineering Geophysics
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. Quaternary Sci Rev 17(1–3):273–302
Zakeri A (2008) Submarine debris flow impact on pipelines. University of Oslo, Oslo
Acknowledgments
We thank the SEABED project of the Norwegian Deepwater Programme (www.ndwp.org) (CDog) and the Norwegian Research Council (LOslope) for financial support. Additional data were acquired during the UNESCO programme “Training Through Research” and within MAREANO (www.mareano.no). Figures were made with GMT (http://gmt.soest.hawaii.edu/). This is publication no. 353 of the International Centre for Geohazards (ICG). We also thank the reviewers Dr. Björn Lindberg and Prof. Dr. Christian Berndt for their constructive comments to improve this manuscript.
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Vanneste, M. et al. (2012). Shallow Landslides and Their Dynamics in Coastal and Deepwater Environments, Norway. In: Yamada, Y., et al. Submarine Mass Movements and Their Consequences. Advances in Natural and Technological Hazards Research, vol 31. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-2162-3_3
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DOI: https://doi.org/10.1007/978-94-007-2162-3_3
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