Abstract
Submarine turbidity currents are controlled by gravity acting on suspended sediments that pull water downslope along with them1. In addition to suspended sediments, turbidity currents also transport sediments at the base of the flow2, which causes the reorganization of basal sediments prior to the settling of suspended grains3,4,5,6. However, as turbidity currents reach areas with minimal slope, they cross a fall-velocity threshold beyond which the suspended sediments begin to stratify the flow. This process extinguishes the turbulence near the bed7,8. Here we use direct numerical simulation of turbidity currents to show that this extinction of turbulence eliminates the ability of the flow to re-entrain sediment and rework the sediment at the base of the flow. Our simulations indicate that deposits from flows without basal reworking should lack internal structures such as laminations. Under appropriate conditions, then, sustained delivery of fine sediments will therefore result in the emplacement of massive turbidites. We suggest that this mechanism can explain field observations of massive deposits9 that were emplaced gradually by dilute but powerful turbidity currents. We also conclude that turbulence in submarine turbidity currents is more fragile than river systems, and more sensitive to damping by the stratification of suspended sediment in the flow.
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References
Garcia, M. H. in Encyclopedia of Earth System Science Vol. 4 (ed. Nieremberg, W. A.) 399–408 (Academic, 1992).
Parker, G. in Sedimentation Engineering: Processes, Measurements, Modeling and Practice (ed. Garcia, M. H.) Ch. 3, 165–252 (ASCE, 2008).
Paola, C., Wiele, S. M. & Reinhart, M. A. Upper-regime parallel lamination as the result of turbulent sediment transport and low-amplitude bed forms. Sedimentology 36, 47–59 (1989).
McBride, E. F., Shepherd, R. G. & Crawley, R. A. Origin of parallel, near-horizontal laminae by migration of bed forms in a small flume. J. Sedim. Petrol. 45, 132–139 (1975).
Bridge, J. S. & Best, J. L. Flow, sediment transport and bedform dynamics over the transition from dunes to upper-stage plane beds—Implications for the formation of planar laminae. Sedimentology 35, 753–763 (1988).
Best, J. L. & Bridge, J. S. The morphology and dynamics of low amplitude bedwaves upon upper stage plane beds and the preservation of planar laminae. Sedimentology 39, 737–752 (1992).
Cantero, M. I., Balachandar, S., Cantelli, A., Pirmez, C. & Parker, G. Turbidity current with a roof: Direct numerical simulation of self-stratified turbulent channel flow driven by suspended sediment. J. Geophys. Res. 114, C03008 (2009).
Cantero, M. I., Balachandar, S. & Parker, G. Direct numerical simulation of stratification effects in sediment-laden turbulent channel flow. J. Turbul. 10, 1–28 (2009).
Talling, P. J. et al. Onset of submarine debris flow deposition far from original giant landslide. Nature 450, 541–544 (2007).
Bouma, A. Sedimentology of Some Flysch Deposits, a Graphic Approach to Facies Interpretation (Elsevier, 1962).
Sylvester, Z. & Lowe, D. R. Textural trends in turbidities and slurry beds from the Oligocene flysch of the East Carpathians, Romania. Sedimentology 51, 945–972 (2004).
Lowe, D. R. Sediment gravity flows. 2. Depositional models with special reference to the deposits of high-density turbidity currents. J. Sedim. Res. 52, 279–298 (1982).
Hickson, T. A. & Lowe, D. R. Facies architecture of a submarine fan channel-levee complex: The Juniper Ridge Conglomerate, Coalinga. Sedimentology 49, 335–362 (2002).
Kneller, B. C. & Branney, M. J. Sustained high-density turbidity currents and the deposition of thick massive sands. Sedimentology 42, 607–616 (1995).
Leclair, S. F. & Arnott, R. W. C. Parallel lamination formed by high-density turbidity currents. J. Sedim. Res. 75, 1–5 (2005).
Shanmugam, G. High-density turbidity currents: Are they sandy debris flows? J. Sedim. Res. 66, 2–10 (1996).
Marr, J. G., Harff, P. A., Shanmugam, G. & Parker, G. Experiments on subaqueous sandy gravity flows: The role of clay and water content in flow dynamics and depositional structures. Geol. Soc. Am. Bull. 113, 1377–1386 (2001).
Vrolijk, P. J. & Southard, J. B. Experiments on rapid deposition of sand from high-velocity flows. Geosci. Can. 24, 45–54 (1997).
Wright, S. & Parker, G. Density stratification effects in sand-bed rivers. J. Hydraul. Eng. 130, 783–795 (2004).
Smith, J. D. & McLean, S. R. Spatially averaged flow over wavy surface. J. Geophys. Res. 82, 1735–1746 (1977).
Wright, S. & Parker, G. Flow resistance and suspended load in sand-bed rivers: Simplified stratification model. J. Hydraul. Eng. 130, 796–805 (2004).
Parker, G., Fukushima, Y. & Pantin, H. M. Self-accelerating turbidity currents. J. Fluid Mech. 171, 145–181 (1986).
Meiburg, E. & Kneller, B. Turbidity currents and their deposits. Annu. Rev. Fluid Mech. 42, 135–156 (2010).
Pirmez, C. & Imran, J. Reconstruction of turbidity currents in Amazon Channel. Mar. Pet. Geol. 20, 823–849 (2003).
Fukushima, Y., Parker, G. & Pantim, H. M. Prediction of ignitive turbidity currents in Scripps Submarine Canyon. Mar. Geol. 67, 55–81 (1985).
Fildani, A., Normark, W. R., Kostic, S. & Parker, G. Channel formation by flow stripping: Large-scale scour features along the Monterrey East Channel and their relation to sediment waves. Sedimetology 53, 1265–1287 (2006).
Damuth, J. & Flood, R. in Submarine Fans and Related Turbidite Systems (eds Bouma, A. H., Normark, W. R. & Barnes, N. E.) (Springer, 1985).
Parker, G., Garcia, M. H., Fukushima, Y. & Yu, W. Experiments on turbidity currents over erodible bed. J. Hydraul. Res. 25, 123–147 (1987).
Acknowledgements
Research funded by Shell Innovation Research and Development. Additional support provided by the National Center for Earth-surface Dynamics, a Science and Technology Center funded by the US National Science Foundation (EAR-0120914). M.I.C. acknowledges research funding from CONICET, CNEA, ANPCyT and the University of Florida.
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M.I.C., A.C., C.P., S.B., D.M., T.A.H. and G.P. proposed the research. M.I.C. and S.B. developed the code and performed the numerical simulations. M.I.C., S.B. and G.P. analysed the results and wrote the text. M.I.C. and A.C. prepared the figures. All authors participated in the interpretation of results, read and commented on the manuscript.
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Cantero, M., Cantelli, A., Pirmez, C. et al. Emplacement of massive turbidites linked to extinction of turbulence in turbidity currents. Nature Geosci 5, 42–45 (2012). https://doi.org/10.1038/ngeo1320
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DOI: https://doi.org/10.1038/ngeo1320
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