Turbulence processes within turbidity currents

MG Wells, RM Dorrell - Annual Review of Fluid Mechanics, 2021 - annualreviews.org
Sediment-laden gravity currents, or turbidity currents, are density-driven flows that transport
vast quantities of particulate material across the floor of lakes and oceans. Turbidity currents …

Submarine channel mouth settings: processes, geomorphology, and deposits

DM Hodgson, J Peakall, KL Maier - Frontiers in Earth Science, 2022 - frontiersin.org
Observations from the modern seafloor that suggest turbidity currents tend to erode as they
lose channel-levee confinement, rather than decelerating and depositing their sediment …

[HTML][HTML] Daily bathymetric surveys document how stratigraphy is built and its extreme incompleteness in submarine channels

D Vendettuoli, MA Clare, JEH Clarke, A Vellinga… - Earth and Planetary …, 2019 - Elsevier
Turbidity currents are powerful flows of sediment that pose a hazard to critical seafloor
infrastructure and transport globally important amounts of sediment to the deep sea. Due to …

A mass transfer-based LES modelling methodology for analyzing the movement of submarine sediment flows with extensive shear behavior

X Guo, X Liu, T Zheng, H Zhang, Y Lu, T Li - Coastal Engineering, 2024 - Elsevier
This study employs the large-eddy simulation (LES) method to investigate the interaction of
submarine sediment flows with extensive shear behavior and ambient water. This method is …

Deep-water channel-lobe transition zone dynamics: Processes and depositional architecture, an example from the Karoo Basin, South Africa

HL Brooks, DM Hodgson, RL Brunt… - GSA …, 2018 - pubs.geoscienceworld.org
Submarine channel-lobe transition zones separate well-defined channels from well-defined
lobes and form morphologically complicated areas, commonly located at breaks in slope …

Sole marks reveal deep-marine depositional process and environment: Implications for flow transformation and hybrid-event-bed models

JH Baas, ND Tracey, J Peakall - Journal of …, 2021 - pubs.geoscienceworld.org
Deposits of sediment gravity flows in the Aberystwyth Grits Group (Silurian, west Wales,
United Kingdom) display evidence that sole marks are suitable for reconstructing …

Hydraulic jump over an adverse slope controlled by different roughness elements

P Parsamehr, A Kuriqi, D Farsadizadeh… - Water Resources …, 2022 - Springer
Hydraulic jump that frequently occurs downstream of hydraulic structures reduces the
excess energy of the incoming flow. This study tested two different heights of discontinuous …

New flow relaxation mechanism explains scour fields at the end of submarine channels

F Pohl, JT Eggenhuisen, M Tilston… - Nature …, 2019 - nature.com
Particle-laden gravity flows, called turbidity currents, flow through river-like channels across
the ocean floor. These submarine channels funnel sediment, nutrients, pollutants and …

Erosion and deposition by supercritical density flows during channel avulsion and backfilling: Field examples from coarse-grained deepwater channel-levée …

J Lang, C Brandes, J Winsemann - Sedimentary Geology, 2017 - Elsevier
Erosion and deposition by supercritical density flows can strongly impact the facies
distribution and architecture of submarine fans. Field examples from coarse-grained channel …

Initiation and evolution of knickpoints and their role in cut-and-fill processes in active submarine channels

L Guiastrennec-Faugas, H Gillet, J Peakall… - …, 2021 - pubs.geoscienceworld.org
Submarine channels are the main conduits and intermediate stores for sediment transport
into the deep sea, including organics, pollutants, and microplastics. Key drivers of …