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Bedforms in the Southern Submarine Canyons of the Balearic Islands (Western Mediterranean) Interpreted as Cyclic Steps

  • Matthieu CartignyEmail author
  • Claudio Lo Iacono
  • Roger Urgeles
  • Maria Druet
  • Juan Acosta
Chapter

Abstract

Multibeam bathymetric data collected along the Menorca Channel (Balearic Islands) for a depth range of 70–850 m revealed the occurrence of bedforms along some of the submarine canyons of the Balearic southern slope. The four main canyons presented in this study display a linear to sinuous geometry, incising the slope for up to 170 m and carving the shelf-edge at a depth of 110 m. Bedforms along these canyons are more developed along the two northernmost canyons, particularly within the 300–700 m depth range. The crescentic shape of the bedforms and their wavelengths of between 120 and 210 m resemble the morphology of bedforms found in other submarine channels and canyons. In line with these previously observed bedforms, we here explore the possibility that the bedforms in the canyons could be interpreted as cyclic steps formed by supercritical turbidity currents. Assuming this interpretation holds, then some simple modelling would allow us to give rough estimates of velocity and thickness of the flows that formed the cyclic steps.

Keywords

Cyclic steps Supercritical-flow bedforms Menorca channel Western mediterranean 

Notes

Acknowledgments

Data acquisition was made possible thanks to the European project INDEMARES (Life-NAT/E/000732). Constructive anonymous reviewers greatly improved the submitted version of the manuscript.

References

  1. Cartigny, M. J., Postma, G., van den Berg, J. H., & Mastbergen, D. R. (2011). A comparative study of sediment waves and cyclic steps based on geometries, internal structures and numerical modeling. Marine Geology, 280(1), 40–56.Google Scholar
  2. Cartigny, M. J., Ventra, D., Postma, G., & Den Berg, J. H. (2014). Morphodynamics and sedimentary structures of bedforms under supercritical‐flow conditions: New insights from flume experiments. Sedimentology, 61(3), 712–748.Google Scholar
  3. Cartigny, M.J.B., Postma, G. (2016). Turbidity current bedforms. In J. Guillén et al. (eds), Atlas of bedfoms in the western Mediterranean, Springer.Google Scholar
  4. Casalbore, D., Romagnoli, C., Bosman, A., & Chiocci, F. L. (2014). Large-scale seafloor waveforms on the flanks of insular volcanoes (Aeolian Archipelago, Italy), with inferences about their origin. Marine Geology, 355, 318–329.Google Scholar
  5. Conway, K. W., Barrie, J. V., Picard, K., & Bornhold, B. D. (2012). Submarine channel evolution: active channels in fjords, British Columbia, Canada. Geo-Marine Letters, 32(4), 301–312.Google Scholar
  6. Covault, J. A., Kostic, S., Paull, C. K., Ryan, H. F., & Fildani, A. (2014). Submarine channel initiation, filling and maintenance from sea‐floor geomorphology and morphodynamic modelling of cyclic steps. Sedimentology, 61(4), 1031–1054.Google Scholar
  7. Fildani, A., Normark, W. R., Kostic, S., & Parker, G. (2006). Channel formation by flow stripping: Large‐scale scour features along the Monterey East Channel and their relation to sediment waves. Sedimentology, 53(6), 1265–1287.Google Scholar
  8. Hughes Clarke, J. E., Brucker, S., Muggah, J., Church, I., Cartwrigght, D. & Kuus, P., Eisan, B. (2012). The Squamish ProDelta: monitoring active landslides and turbidity currents. In Canadian Hydrographic Conference 2012, Proceedings.Google Scholar
  9. Hughes Clarke, J. E., Vidiera Marques, C. & Pratomo, D. (2014). Imaging active mass-wasting and sediment flows on a fjord delta, Squamish, British Columbia. In S. Krastel et al. (eds.), Submarine Mass Movements and Their Consequences, Advances in Natural and Technological Hazards Research 37, Springer.Google Scholar
  10. Kennedy, J. F. (1963). The mechanics of dunes and antidunes in erodible-bed channels. Journal of Fluid Mechanics, 16(04), 521–544.Google Scholar
  11. Kostic, S., & Parker, G. (2006). The response of turbidity currents to a canyon–fan transition: internal hydraulic jumps and depositional signatures. Journal of Hydraulic Research, 44(5), 631–653.Google Scholar
  12. Lo Iacono C., Urgeles R., Polizzi S., Grinyo, J., Druet M., Agate M., Gili J.M. & Acosta J. (2013). Submarine Mass Movements Along a Sediment Starved Margin: The Menorca Channel (Balearic Islands –Western Mediterranean). In S. Krastel et al. (eds.), Submarine Mass Movements and Their Consequences, Advances in Natural and Technological Hazards Research 37, Springer.Google Scholar
  13. Normandeau, A., Lajeunesse, P., St-Onge, G., Bourgault, D., Drouin, S. S. O., Senneville, S., & Bélanger, S. (2014). Morphodynamics in sediment-starved inner-shelf submarine canyons (Lower St. Lawrence Estuary, Eastern Canada). Marine Geology, 357, 243–255.Google Scholar
  14. Paull, C. K., Ussler III, W., Caress, D. W., Lundsten, E., Covault, J. A., Maier, K. L., & Augenstein, S. (2010). Origins of large crescent-shaped bedforms within the axial channel of Monterey Canyon, offshore California. Geosphere, 6(6), 755–774.Google Scholar
  15. Postma, G. & Cartigny, M. J. (2014). Supercritical and subcritical turbidity currents and their deposits—A synthesis. Geology, 42(11), 987–990.Google Scholar
  16. Simons, D. B. (1960). Sedimentary structures generated by flow in alluvial channels.Google Scholar
  17. Symons, W. O., Sumner, E. J., Talling, P. J., Cartigny, M. J., & Clare, M. A. (2016). Large-scale sediment waves and scours on the modern seafloor and their implications for the prevalence of supercritical flows. Marine Geology, 371, 130–148.Google Scholar
  18. Smith, D. P., Ruiz, G., Kvitek, R., & Iampietro, P. J. (2005). Semiannual patterns of erosion and deposition in upper Monterey Canyon from serial multibeam bathymetry. Geological Society of America Bulletin, 117(9–10), 1123–1133.Google Scholar
  19. Spinewine, B., Sequeiros, O. E., Garcia, M. H., Beaubouef, R. T., Sun, T., Savoye, B., & Parker, G. (2009). Experiments on wedge-shaped deep sea sedimentary deposits in minibasins and/or on channel levees emplaced by turbidity currents. Part II. Morphodynamic evolution of the wedge and of the associated bedforms. Journal of Sedimentary Research, 79(8), 608–628.Google Scholar
  20. Taki, K., & Parker, G. (2005). Transportational cyclic steps created by flow over an erodible bed. Part 1. Experiments. Journal of Hydraulic Research, 43(5), 488–501.Google Scholar
  21. Ventra, D., Cartigny, M. J., Bijkerk, J. F., & Açikalin, S. (2015). Supercritical-flow structures on a Late Carboniferous delta front: Sedimentologic and paleoclimatic significance. Geology, 43(8), 731–734.Google Scholar
  22. Zhong, G., Cartigny, M.J.B., Kuang, Z., & Wang, L. (2015). Cyclic steps along the South Taiwan Shoal and West Penghu submarine canyons on the northeastern continental slope of the South China Sea. Geological Society of America Bulletin, B31003-1.Google Scholar

Copyright information

© Springer International Publishing Switzerland 2017

Authors and Affiliations

  • Matthieu Cartigny
    • 1
    Email author
  • Claudio Lo Iacono
    • 1
  • Roger Urgeles
    • 2
  • Maria Druet
    • 3
  • Juan Acosta
    • 3
  1. 1.Marine GeosciencesNational Oceanography CentreSouthamptonUK
  2. 2.Departament de Geociencies MarinesInstitut de Ciencies del Mar (CSIC)BarcelonaSpain
  3. 3.Instituto Español de OceanografíaMadridSpain

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