Suzanne F. Leclair, R. William C. Arnott; Parallel Lamination Formed by High-Density Turbidity Currents. Journal of Sedimentary Research ; 75 (1): 1–5. doi: https://doi.org/10.2110/jsr.2005.001
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Experiments were conducted in order to investigate processes of sediment transport and deposition from sustained turbidity currents with initial volume-fraction sediment concentration of 0.20, 0.25, and 0.35. Parallel lamination was formed at bed-aggradation rates up to 4 mm s-1 and bedload-layer sediment concentration up to 0.36. This observation contradicts the generally held assumption that parallel lamination forms only from low-density flows and at low bed-aggradation rates. This misconception illustrates a poor understanding of threshold values of grain-support mechanisms in the bedload layer. The present results bring new insight into understanding sediment transport in the deep sea and interpreting the sedimentary record.