1887
Volume 19, Issue 1
  • E-ISSN: 1365-2117

Abstract

ABSTRACT

Imbricate reflections commonly occur in the glacigenic section of seismic profiles from the Bjørnøya Trough. This was the main drainage pathway for fast‐flowing ice‐streams from the former Barents Sea and Scandinavian ice sheets. Industry three‐dimensional (3D) seismic data from the southern flank of the Bjørnøya Trough are used here to investigate these imbricate reflections. Integration of vertical seismic sections with 3D plan view images and attribute maps reveal that imbricate reflections at the SW Barents Sea Margin are mega‐scale sediment blocks with a glacigenic origin. Imbricate reflections in two regions to the east of the survey appear on plan‐view as well‐developed lineations of U‐shaped crescents; however, following detailed analysis of their location, geometry and relation to sailing direction during data acquisition, we can demonstrate that these are seismic artefacts. These artefacts are related to the straight parts of east–west‐trending plough marks on the sea floor, having a dip direction that is directly related to the sailing direction of the ship during seismic acquisition. By analysing both real glacigenic imbrications and false imbrications or artefacts, we are able to demonstrate the critical distinguishing criterion.

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2007-02-13
2024-04-26
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References

  1. Aber, J.S., Croot, D.G. & Fenton, M.M. (1989) Glaciotectonic Landforms and Structures. Kluwer Academic Publishers, Dordrecht 201pp.
    [Google Scholar]
  2. Andersen, L.T., Hansen, D.L. & Huuse, M. (2005) Numerical modelling of thrust structures in unconsolidated sediments: implications for glaciotectonic deformation. J. Struct. Geol., 27, 587–596.
    [Google Scholar]
  3. Andreassen, K., Laberg, J.S. & Vorren, T.O. (in press) Seismic seafloor geomorphology of the Barents Sea and its glaci‐dynamic implications. Accepted in Geomorphology.
  4. Andreassen, K., Nilssen, L.C., Rafaelsen, B. & Kuilman, L.W. (2004) Three‐dimensional seismic data from the Barents Sea margin reveal evidence of past ice streams and their dynamics. Geology, 38, 729–732.
    [Google Scholar]
  5. Andreassen, K., Ødegaard, C. & Rafaelsen, B. (2007) Imprints of Former Ice Streams, Imaged and Interpreted Using Industry 3D Seismic Data from the South Western Barents Sea. In: Seismic Geomorphology: Applications to Hydrocarbon Exploration and Production (Ed. by R.Davies , H.W.Posamentier , L.J.Wood & J.A.Cartwright ). Geol. Soc. Lond. Spec. Pub., 277, 151–169.
    [Google Scholar]
  6. Astakhov, V. (2001) The stratigraphic framework for the Upper Pleistocene of the glaciated Russian Arctic: changing paradigms. Global Planet. Change, 31, 283–295.
    [Google Scholar]
  7. Boulton, G.S., Van Der Meer, J.J.M., Beets, D.J., Hart, J.K. & Ruegg, G.H.J. (1999) The sedimentary and structural evolution of a recent moraine complex, Holmstrømbreen, Spitsbergen. Quater. Sci. Rev., 18, 339–371.
    [Google Scholar]
  8. Brown, A.R. (2005) Interpretation of Three‐Dimensional Seismic Data, 42, 6. AAPG Memoir, Tulsa, Oklahoma 541pp.
    [Google Scholar]
  9. Bulat, J. (2005) Some considerations on the interpretation of seabed images based on commercial 3D seismic in the Faroe‐Shetland Channel. Basin Res., 17, 21–42.
    [Google Scholar]
  10. Butt, F.A., Elverhøi, A., Solheim, A. & Forsberg, C.F. (2000) Deciphering late Cenozoic development of the western Svalbard margin from ODP site 986 results. Mar. Geol., 169, 373–390.
    [Google Scholar]
  11. Cartwright, J. & Huuse, M. (2005) 3D seismic technology: the geological ‘Hubble’. Basin Res., 17, 1–20.
    [Google Scholar]
  12. Clayton, L., Moran, S.R. & Bluemle, J.P. (1980) Explanatory text to accompany the geologic map of Dakota. North Dakota Geological Survey, Report of Investigation No. 69.
  13. Denton, G.H. & Hughes, T.J. (1981) The Arctic ice sheet: an outrageous hypothesis. In: The Last Great Ice Sheets (Ed. By G.H.Denton & T.J.Hughes ), pp. 437–467. Wiley, New York.
    [Google Scholar]
  14. Dowdeswell, J.A. & Siegert, M.J. (1999) Ice‐sheet numerical modelling and marine geophysical measurements of glacier‐derived sedimentation on the Eurasian Arctic continental margins. Geol. Soc. Am. Bull., 111, 1080–1097.
    [Google Scholar]
  15. Eidvin, T., Goll, R.M., Grogan, P., Smelror, M. & Ulleberg, K. (1998) The Pleistocene to middle Eocene stratigraphy and geological evolution of the western Barents Sea continental margin at well site 7316/5‐1 (Bjørnøya West area). Norsk Geoogisk Tidsskrift, 78, 99–123.
    [Google Scholar]
  16. Eidvin, T., Jansen, E. & Riis, F. (1993) Chronology of Tertiary fan deposits off the western Barents Sea: implications for the uplift and erosion history of the Barents Shelf. Mar. Geol., 112, 109–131.
    [Google Scholar]
  17. Elvebakk, G., Hunt, D.W. & Stemmerik, L. (2002) From isolated buildups to buildup mosaics: 3D seismic shed new light on the upper Carboniferous–Permian fault controlled carbonate buildups, Norwegian Barents Sea. Sediment. Geol., 152, 7–17.
    [Google Scholar]
  18. Elverhøi, A., Fjeldskaar, W., Solheim, A., Nyland‐Berg, M. & Russwurm, L. (1993) The Barents Sea ice sheet – a model of its growth and decay during the last ice maximum. Quater. Sci. Rev., 12, 863–873.
    [Google Scholar]
  19. Elverhøi, A., Svendsen, J.‐I., Solheim, A., Milliman, J.D., Mangerud, J. & Hooke, R.L. (1995) Late Quarternary sediment yield from the high Arctic Svalbard area. J. Geol., 103, 1–17.
    [Google Scholar]
  20. Evans, J., Pudsey, C., O'Cofaigh, C., Morris, P. & Domack, E. (2005) Late Quaternary glacial history, flow dynamics and sedimentation along the eastern margin of the Antarctic Peninsula ice sheet. Quater. Sci. Rev., 24, 741–774.
    [Google Scholar]
  21. Faleide, J.I., Solheim, A., Fiedler, A., Hjelstuen, B.O., Andersen, E.S. & Vanneste, K. (1996) Late Cenozoic evolution of the western Barents Sea – Svalbard continental margin. Global Planet. Change, 12, 53–74.
    [Google Scholar]
  22. Fiedler, A. & Faleide, J.I. (1996) Cenozoic sedimentation along the southwestern Barents Sea margin in relation to uplift and erosion of the shelf. Global Planet. Change, 12, 75–93.
    [Google Scholar]
  23. Forsberg, C.F., Solheim, A., Elverhoi, A., Jansen, E., Channell, J.E.T. & Andersen, E.S. (1999) The depositional environment of the western Svalbard margin during the late Pliocene and the Pleistocene: sedimentary facies changes at site 986. In: Proceedings of the Ocean Drilling Program, Scientific Results, 162 (Ed. by M.E.Raymo , E.Jansen , P.Blum & T.D.Herbert ). ODP, Texas A & M University, College station, TX: 233–246.
    [Google Scholar]
  24. Gataullin, V., Mangerud, J. & Svendsen, J.I. (2001) The extent of the late Weichselian ice sheet in the southeastern Barents Sea. Global Planet. Change, 31, 453–474.
    [Google Scholar]
  25. Gataullin, V. & Polyak, L. (1997) Glaciotectonic features, southeastern Barents Sea. In: Glaciated Continental Margins: An Atlas of Acoustic Images (Ed. by T.A.Davies , T.Bell , A.KCooper , H.Josenhans , L.Polyak , A.Solheim , M.S.Stoker & J.A.Stravers ), pp. 70–71. Chapman & Hall, London.
    [Google Scholar]
  26. Gataullin, V., Polyak, L., Epstein, O. & Romanyuk, B. (1993) Glacigenic deposits of the Central Deep: a key to the Late Quaternary evolution of the eastern Barents Sea. Boreas, 22, 47–58.
    [Google Scholar]
  27. Hambrey, M.J., Huddart, D., Bennett, M.R. & Glasser, N.F. (1997) Genesis of ‘hummocky moraines’ by thrusting in glacier ice: evidence from Svalbard and Britain. J. Geol. Soc. Lond., 154, 623–632.
    [Google Scholar]
  28. Huuse, M. & Lykke‐Andersen, H. (2000) Large‐scale glaciotectonic thrust structures in the eastern Danish North Sea. In: Deformation of Glacial Materials (Ed. by A.J.Maltman , B.Hubbard & M.J.Hambrey ), Geol. Soc. Spec. Publ., 176, 293–305.
    [Google Scholar]
  29. Klint, K.E.S. & Pedersen, S.A.S. (1995) The Hanklit Glaciotectonic Thrust Fault Complex, Mors, Denmark. Geol. Survey Denmark, 35, 1–30.
    [Google Scholar]
  30. Kuvaas, B. & Kristoffersen, Y. (1996) Mass movements in glaciomarine sediments on the Barents Sea continental slope. Global Planet. Change, 12, 287–307.
    [Google Scholar]
  31. Larsen, E., Kjær, K.H., Jensen, M., Demidov, I.N, Håkansson, L. & Paus, A. (2006) Early Weichselian palaeoenvironments reconstructed from a mega‐scale thrust‐fault complex, Kanin Peninsula, northwestern Russia. Boreas, 35, 476–492.
    [Google Scholar]
  32. Lebesbye, E. (2000) Late Cenozoic glacial history of the south‐western Barents Sea. PhD Thesis, Tromsø, University of Tromsø, 172pp.
  33. O'Cofaigh, C., Dowdeswell, J.A., Aller, C.S., Hiemstra, J.F., Pudsey, C.J., Evans, J. & Evans, D.J.A. (2005) Flow dynamics and till genesis associated with a marine‐based Antarctic palaeo‐ice stream. Quater. Sci. Rev., 24, 709–740.
    [Google Scholar]
  34. Pedersen, S.A.S. (1987) Comparative studies of gravity tectonics in Quaternary sediments and sedimentary rocks related to fold belts. In: Deformation of Sediments and Sedimentary Rocks (Ed. by M.E.Jones & R.M.FPreston ), Geol. Soc. Spec. Publ . 29, 165–180.
    [Google Scholar]
  35. Pedersen, S.A.S. (1996) Progressive glaciotectonic deformation in Weichselian and Palaeogene deposits at Feggeklit, northern Denmark. Bull. Geol. Soc. Denmark, 42, 153–174.
    [Google Scholar]
  36. Pedersen, S.A.S (2000) Superimposed deformation in glaciotectonics. Bull. Geol. Soc. Denmark, 46, 125–144.
    [Google Scholar]
  37. Rafaelsen, B., Andreassen, K., Kuilman, L.W., Lebesbye, E., Hogstad, K. & Midtbø, M. (2002) Geomorphology of buried glacigenic horizons in the Barents Sea from 3‐dimensional seismic data. In: Glacier‐Influenced Sedimentation on High‐Latitude Continental Margins (Ed. by J.A.Dowdeswell & C.O'Cofaigh ), Geol. Soc. Lond. Spec. Publ . 203, 259–276.
    [Google Scholar]
  38. Rafaelsen, B., Andreassen, K., Samuelsberg, T.J., Hogstad, K. & Randen, T. (2003) Upper Paleozoic carbonate build‐ups in the Norwegian Barents Sea: new insights from 3‐D seismic and automated facies mapping. 65th EAGE Conference & Exhibition, Stavanger. 2–5. June. Extended abstract, 4pp.
  39. Siegert, M.J. & Dowdeswell, J.A. (2002) Late Weichselian iceberg, meltwater and sediment production from the Eurasian High Arctic ice sheet: results from numerical ice-sheet modelling. Mar. Geol., 188, 109–127.
    [Google Scholar]
  40. Solheim, A. & Kristoffersen, Y. (1984) Sediments above the upper regional unconformity: thickness, seismic stratigraphy and outline of the glacial history. Norsk Polarinstitutt Skrifter, 179B, 26pp.
    [Google Scholar]
  41. Solheim, A., Russwurm, L., Elverhøi, A. & Berg, M.N. (1990) Glacial geomorphic features in the northern Barents Sea: direct evidence for grounded ice and implications for the pattern of deglaciation and late glacial sedimentation. In: Glacimarine Environments: Processes and Sediments (Ed. by J.A.Dowdeswell & J.D.Scourse ), Geol. Soc. Spec. Publ., 53, 253–268.
    [Google Scholar]
  42. Stokes, C.R. & Clark, C.D. (2002) Are long subglacial bedforms indicative of fast ice flow?Boreas, 31, 239–249.
    [Google Scholar]
  43. Sættem, J. (1990) Glaciotectonic forms and structures on the Norwegian continental shelf: observations, processes and implications. Norsk Geologisk Tidsskrift, 70, 81–94.
    [Google Scholar]
  44. Sættem, J. (1994) Glaciotectonic structures along the Barents shelf margin. In: Formation and Deformation of Glacial Deposits (Ed. by W.P.Warren & D.G.Croot ), pp. 95–113. Balkerna, Rotterdam, the Netherlands.
    [Google Scholar]
  45. Sættem, J., Rise, L. & Westgaard, D.A. (1992) Composition and properties of Glacigenic sediments in the south‐western Barents Sea. Mar. Geotechnol., 10, 229–255.
    [Google Scholar]
  46. Van der Wateren, F.M. (1995) Structural geology and sedimentology of push moraines. Mededelingen Rijks Geologische Dienst, 54 168pp.
    [Google Scholar]
  47. Vorren, T.O., Kristoffersen, Y. & Andreassen, K. (1986) Geology of the inner shelf west of North Cape, Norway. Norsk Geol. Tidskrift, 66, 99–105.
    [Google Scholar]
  48. Vorren, T.O. & Laberg, J.S. (1996) Late glacial air temperature, oceanographic and ice sheet interactions in the southern Barents Sea region. In: Late Quaternary Palaeoceanography of the North Atlantic Margins (Ed. by J.T.Andrews , W.E.N.Austin , H.Bergsten & A.E.Jennings ), Geol. Soc. Spec. Publ., 111, 303–321.
    [Google Scholar]
  49. Vorren, T.O. & Laberg, J.S. (1997) Trough mouth fans – palaeoclimate and ice‐sheet monitors. Quarter. Sci. Rev., 16, 865–881.
    [Google Scholar]
  50. Vorren, T.O., Lebesbye, E. & Larsen, K.B. (1990) Geometry and genesis of the glacigenic sediments in the southern Barents Sea. In: Glacimarine Environments: Processes and Sediments (Ed. by J.A.Dowdeswell & J.D.Scourse ), Geol. Soc. Spec. Publ., 53, 269–288.
    [Google Scholar]
  51. Vorren, T.O., Richardsen, G., Knutsen, S.‐M. & Henriksen, E. (1991) Cenozioc erosion and sedimentation in the western Barents Sea. Mar. Petrol. Geol., 8 (3), 317–340.
    [Google Scholar]
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