Results 111 to 120 of about 1,908 (160)

Flow structure in sinuous submarine channels: Velocity and turbulence structure of an experimental submarine channel

Marine Geology, 2006
Submarine channels have long been considered analogous to meandering fluvial channels due to their similar planform geometry, and this has given rise to strong analogies in terms of the fluid dynamics of these channel types. However, there is a paucity of direct measurements detailing the structure of velocity or sediment concentration, and nothing is ...
Keevil, G., Peakall, J., Best, J., Amos, K.   +3 more
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Submarine channel response to intrabasinal tectonics: The influence of lateral tilt

AAPG Bulletin, 2010
Abstract Lateral tilting is a common deformation style in extensional basins; its influence on subaerial channels is, to a degree, understood and may be significant, controlling the style of channel development and the resultant sand-body architecture.
Kane, Ian A.; id_orcid 0000-0002-0371-4223, Catterall, Vicky, McCaffrey, William D., Martinsen, Ole J.   +3 more
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Quantitative analysis of the geometry of submarine channels: Implications for the classification of submarine fans

Geology, 1992
Certain attributes of submarine channels measured from GLORIA sidescan sonar data from 16 different submarine fans indicate similarities with fluviatile systems. Channel width, depth, meander radius and wavelength, sinuosity, and gradient were measured. This approach makes it possible to identify high- sinuosity, low-gradient (e.g., Indus Fan channels)
J. D. Clark, N. H. Kenyon, K. T. Pickering   +2 more
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Submarine lava tubes and channels

Bulletin of Volcanology, 1986
High-resolution, side-looking sonar surveys of the East Pacific rise and seamounts in the eastern Pacific have revealed the common presence of lava tubes and channels in seafloor volcanic terrains. Tube and channel systems commonly issue from small volcanic cones or domes, are continuous for distances of 1–3 km, and are considered to be important in ...
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Experiments on incipient channelization of submarine fans

Journal of Hydraulic Research, 2002
Experiments on the formation of channelized submarine fans by the passage of successive turbidity currents are presented. Channels similar to subaerial rivers are found in many submarine fans. The inception of channels on submarine fans, which are essentially depositional environments, can be explained in terms of the lateral distribution of the rates ...
Jasim Imran, Gary Parker, Peter Harff
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Characterisation of Submarine Acoustic Transmission Channels

1981
Some experimental results about an active characterisation of the submarine acoustic horizontal and middle range propagation are given. First simultaneous monochromatic signals are emitted which lead to the analysis of power and phase fluctuations. Then high — product BT signals are used to estimate the channel bitemporal response and the scattering ...
G. Jourdain, J. Y. Jourdain
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Submarine Fans and Their Channels, Levees, and Lobes

2017
Submarine fans are complex morphological features that develop on the continental slope, rise and abyssal plain, normally at the mouths of submarine canyons. They are constructed principally from the deposits of sediment gravity flows (mainly turbidity currents and debris flows) as terrigenous and shallow marine sediment is redistributed into deeper ...
Mark E. Deptuck, Zoltán Sylvester
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Petrology and Geochemistry of Submarine Volcanism in the Sicily Channel Rift

The Journal of Geology, 2006
Abstract Submarine magmatism in the Sicily Channel Rift began in the early Pliocene and lasted until almost 200 yr ago. We present here petrological and geochemical data on volcanic rocks dredged from Graham and Nameless banks and Pantelleria seamounts in the Pelagian sector of the Sicily Channel Rift.
S. g Rotolo, CASTORINA, Francesca, D. Cellura, M. Pompilio   +3 more
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Curvature-induced secondary flow in submarine channels

Environmental Fluid Mechanics, 2014
The curvature-driven secondary flow in sinuous submarine channels has been a subject of considerable interest and controversy. Here, results from numerical model studies involving saline flow in laboratory-scale channels are presented. A 3D finite volume model of density and turbidity currents is used and simulations are run with different inflow ...
Hesham Ezz, Jasim Imran
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Submarine Topography of Eastern Channel, Gulf of Maine

The Journal of Geology, 1957
Topography of Eastern Channel between Browns Bank and Georges Bank is similar to submarine glaciated valleys elsewhere, notably Cabot Trough in the Gulf of St. Lawrence. It is possible that glacial ice in these offshore regions was confined to deep embayments such as the Gulf of Maine and that it did not extend out over the continental shelf as a sheet
Shannon R. Torphy, John M. Zeigler
openaire   +1 more source