Results 211 to 220 of about 22,252 (257)
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Seafloor morphology along the active margin in Guerrero, Mexico: Probable earthquake implications
Journal of South American Earth Sciences, 2020Abstract Submarine geomorphic features on the active margin along the Mexican Pacific coast are the result of subduction process. We analyze bathymetric data and present an overview of the continental slope geomorphology in the Guerrero seismic gap.
Jan Černý +3 more
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The influence of small-scale seafloor surface morphology on acoustic backscattering
The Journal of the Acoustical Society of America, 1999Sediment transport induced by current flows and surface gravity waves often causes the formation of nonisotropic features of the seafloor interface. Depending on environmental conditions (e.g., current, sediment type, etc.), these directional ripples may display non-Gaussian or sharply peaked forms.
Eric Pouliquen +2 more
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Geomorphology, 2014
High-resolution multibeam morpho-bathymetricmaps and a dense grid of seismic re flection profiles showrelict and palimpsest geomorphologic features along the Montenegro/Northern Albanian Continental Margin. This sector of the Eastern Adriatic shelf,attheexternalfront oftheDinaridesChain, ischaracterizedbyhighly variable sea floor patterns and ...
Del Bianco F +5 more
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High-resolution multibeam morpho-bathymetricmaps and a dense grid of seismic re flection profiles showrelict and palimpsest geomorphologic features along the Montenegro/Northern Albanian Continental Margin. This sector of the Eastern Adriatic shelf,attheexternalfront oftheDinaridesChain, ischaracterizedbyhighly variable sea floor patterns and ...
Del Bianco F +5 more
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Seafloor morphology of the Sumatran subduction zone: Surface rupture during megathrust earthquakes?
Geology, 2006High-resolution multibeam bathymetry data from the Sumatran subduction zone reveal the regional and local morphology, including small-scale fault-related features and landslides that may be linked to earthquakes in the recent geological past. The accretionary prism is steeply sloped and pervasively eroded, with evidence of unusual landward vergence ...
Henstock, T.J. +2 more
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Chapter 8 Seafloor Morphology and Sediments
1986Publisher Summary The seafloor of Hudson Bay is characterized by a major basin about 250 m deep, with two separate arms in its southern half. The dividing topographic high is called “Midbay Bank,” which is a broad promontory that extends northerly almost half the length of the bay from the south coast between Winisk and Severn Rivers.
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Linking carbonate sediment transfer to seafloor morphology: Insights from Exuma Valley, the Bahamas
Sedimentology, 2020AbstractThe depositional record of carbonate slopes provides a valuable archive of past environmental and climatic changes. Modern carbonate slopes reveal morphological variabilities (for example, gullies and canyons) shaped by episodic slope collapses and turbidity currents.
Johan Le Goff +9 more
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Seafloor Expression of Subsea Morphology in Lower Congo Basin, an Integrated Study
Proceedings, 2014High resolution data, ranging from geophysical, geological and geotechnical, acquired to evaluate the potential hazards and constraints to offshore operations might also provide new insights into the geological processes. We present a case study where an integrated geosciences study performed in a deepwater province of the Congo Basin lead to a better ...
F. Zolezzi, M. Calarco, W.J. Johnson
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Sedimentology of a Morphologically Complex Seafloor Environment, New Jersey Continental Shelf
2004Abstract : LONG-TERM GOAL. The overarching goal of this research is to advance our understanding of geologic clutter, acoustic anomalies created by natural sub-seafloor features such as infilled paleochannels, using the continental shelf off New Jersey as a natural laboratory. OBJECTIVES. As part of the ONR Geoclutter initiative, the objectives of this
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Stochastic modeling of seafloor morphology; Resolution of topographic parameters by sea beam data
IEEE Journal of Oceanic Engineering, 1989The authors explore the resolving power of an inversion algorithm which estimates five parameters of the seafloor covariance function from a single swath of multibeam echosounding data. The resolving power is evaluated as a function of the swath length, the orientation of ship track with respect to topographic grain, and the response width of the ...
J.A. Goff, T.H. Jordan
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MAPPING A WEST-GREENLAND GEOLOGICAL BOUNDARY USING SEAFLOOR MORPHOLOGY
Geological Society of America Abstracts with Programs, 2023Megan Carden +3 more
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