scholarly journals Submarine channel initiation, filling and maintenance from sea-floor geomorphology and morphodynamic modelling of cyclic steps

Sedimentology ◽  
2014 ◽  
Vol 61 (4) ◽  
pp. 1031-1054 ◽  
Author(s):  
Jacob A. Covault ◽  
Svetlana Kostic ◽  
Charles K. Paull ◽  
Holly F. Ryan ◽  
Andrea Fildani
Keyword(s):  
Sea Floor ◽  
Morphodynamic Modelling ◽  
Submarine Channel ◽  
Channel Initiation

Using sea-floor morphometrics to constrain stratigraphic models of sinuous submarine channel systems

2016 ◽  
Vol 77 ◽  
pp. 92-115 ◽  
Author(s):  
Aaron P. Reimchen ◽  
Stephen M. Hubbard ◽  
Lisa Stright ◽  
Brian W. Romans
Keyword(s):  
Sea Floor ◽  
Submarine Channel ◽  
Channel Systems

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

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
F. Pohl ◽  
J. T. Eggenhuisen ◽  
M. Tilston ◽  
M. J. B. Cartigny
Keyword(s):  
Sediment Load ◽  
Relaxation Mechanism ◽  
Turbidity Currents ◽  
Flow Mechanism ◽  
Submarine Channels ◽  
Sea Floor ◽  
Submarine Channel ◽  
Gravity Flows ◽  
Rapid Flow ◽  
Flow Through

Abstract Particle-laden gravity flows, called turbidity currents, flow through river-like channels across the ocean floor. These submarine channels funnel sediment, nutrients, pollutants and organic carbon into ocean basins and can extend for over 1000’s of kilometers. Upon reaching the end of these channels, flows lose their confinement, decelerate, and deposit their sediment load; this is what we read in textbooks. However, sea floor observations have shown the opposite: turbidity currents tend to erode the seafloor upon losing confinement. Here we use a state-of-the-art scaling method to produce the first experimental turbidity currents that erode upon leaving a channel. The experiments reveal a novel flow mechanism, here called flow relaxation, that explains this erosion. Flow relaxation is rapid flow deformation resulting from the loss of confinement, which enhances basal shearing of the turbidity current and leads to scouring. This flow mechanism plays a key role in the propagation of submarine channel systems.

Disposal if High Level Radio Active Wastes by Burial in the Sea Floor.

1982 ◽  
Vol 16 (1) ◽  
pp. 28-37
Keyword(s):  
Sea Floor ◽  
High Level

Gravity map uncovers sea-floor surprises

Nature ◽  
2014 ◽  
Author(s):  
Alexandra Witze
Keyword(s):  
Sea Floor ◽  
Gravity Map

Hundreds of sea-floor gas plumes spotted by sonar

Nature ◽  
2014 ◽  
Author(s):  
Sid Perkins
Keyword(s):  
Sea Floor

The Sea Floor

1993 ◽  
Author(s):  
Eugen Seibold ◽  
Wolfgang H. Berger
Keyword(s):  
Sea Floor

Time-series photographs of the sea floor in western Massachusetts Bay: May 1999 to September 1999; May 2000 to September 2000; and October 2001 to February 2002

Data Series ◽  
10.3133/ds97 ◽  
2004 ◽  
Author(s):  
Bradford Butman ◽  
P. Soupy Alexander ◽  
Michael H. Bothner
Keyword(s):  
Time Series ◽  
Massachusetts Bay ◽  
Sea Floor

Sea-Floor Mapping and Benthic Habitat GIS for the Elwha River Delta Nearshore, Washington

Data Series ◽  
10.3133/ds320 ◽  
2008 ◽  
Author(s):  
Guy R. Cochrane ◽  
Jonathan A. Warrick ◽  
Yael Sagy ◽  
David Finlayson ◽  
Jodi Harney
Keyword(s):  
River Delta ◽  
Benthic Habitat ◽  
Elwha River ◽  
Sea Floor ◽  
Sea Floor Mapping
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