3 edition of Submarine canyon and slope processes on the U.S. Atlantic continental margin found in the catalog.
Submarine canyon and slope processes on the U.S. Atlantic continental margin
|Statement||by Bonnie A. McGregor ; prepared in cooperation with the U.S. Bureau of Land Management under interagency agreement AA851-IA2-26|
|Series||Open-file report -- 83-735, Open-file report (Geological Survey (U.S.)) -- 83-735|
|Contributions||United States. Bureau of Land Management, Geological Survey (U.S.)|
|The Physical Object|
Baltimore Canyon Trough is the deepest depocenter for Mesozoic and Cenozoic sedimentary rocks along the U.S. Atlantic continental margin, with up to 18 km deposited beneath the continental shelf off New Jersey (Figs. 1,2, and 3). The continental slope opposite displays geomorphic features generated by tectonic erosion [von Huene et al., ], local reentries at the slope toe where seamounts have collided with the margin, slope grooves along seamount subduction paths, and rotational slumps. Large‐scale (>20 km long or wide) rotational slumps and rock avalanches Cited by:
Twichell DC, Chaytor JD, ten Brink US, Buczkowski B () Morphology of late Quaternary submarine landslides along the U.S. Atlantic continental margin. Mar Geol –15 CrossRef Google Scholar Van Camp L, Nykjaer L, Mittelstaedt E, Schlittenhardt P () Upwelling and boundary circulation off Northwest Africa as depicted by infrared and Cited by: The Hudson canyon is another large submarine canyon incised into the Atlantic Continental slope and outer shelf off New York Harbour, U.S.A. It is extended from the Hudson River. The canyon is about 80 km long with its fan goes to a depth of m. The Hudson Canyon (Contd)
(1) the Atlantic type margin that is generally seismically inactive (Figure a) and (2) the seismically active Pacific type margin (Figure b). 3. The Atlantic margins are also considered passive margins, and the Pacific margins, active. 1. Poag, C.W., U.S. middle Atlantic continental rise: provenance, dispersal, and deposition of File Size: KB. This book provides a world-wide perspective of submarine mass movements and their consequences. This has been made possible by assembling excellent contributions from active researchers, groups, or institutions, thus providing full coverage of the many scientific and engineering aspects of this type of marine and coastal geo-hazard.
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Get this from a library. Submarine canyon and slope processes on the U.S. Atlantic continental margin. [Bonnie A McGregor; United States. Bureau of Land Management.; Geological Survey (U.S.)]. Submarine canyon and slope processes on the U.S.
Atlantic continental margin By Bonnie A. McGregor Open-File Report * Prepared in cooperation with the U.S. Bureau of Land Management under Interagency Agreement AAIA This report is preliminary and has not Author: B.A. McGregor. U.S. Geological Survey MSBox Denver Federal Center Denver, Colorado The improved understanding of submarine landslides along the U.S.
Atlantic margin provided by the extensive multibeam bathymetric and backscatter data that are now available provides valuable insights into the differences between open-slope sourced and canyon sourced landslides, conditions that control their distribution, and conditions that Cited by: Intra-slope canyon morphology and its modification by rockfall processes, U.S.
Atlantic continental margin. Mar. Geol., Side-scan sonar data have been acquired at three different range settings and scales for a section of the continental slope.
The data allow new perspectives on canyon morphology at varying complementary by: 8. Pratson et al. (), Pratson and Haxby () and Brothers et al. () show that the slope readjustment surfaces as envisaged by Ross et al.
() along the U.S. Atlantic continental margin. Over the last few years, canyons along the northern U.S. Atlantic continental margin have been the focus of intensive research examining canyon evolution, submarine geohazards, benthic ecology and deep-sea coral habitat.
New high-resolution multibeam bathymetry and Remotely Operated Vehicle (ROV) dives in the major shelf-breaching and minor slope canyons, provided the opportunity to Cited by: 3.
Morphology of late Quaternary submarine landslides along the U.S. Atlantic continental margin Article in Marine Geology () August with 94 Reads How we measure 'reads'.
Abstract. Over the last few years, canyons along the northern U.S. Atlantic continental margin have been the focus of intensive research examining canyon evolution, submarine geohazards, benthic ecology and deep-sea coral by: 3.
Shelf-sourced submarine canyons are common features of continental margins and are fundamental to deep-sea sedimentary systems. Despite their geomorphic and geologic significance, relatively few passive margin shelf-breaching canyons worldwide have been mapped using modern geophysical methods.
Between and a series of geophysical surveys was conducted across four major. Over the last few years, canyons along the northern U.S. Atlantic continental margin have been the focus of intensive research examining canyon evolution, submarine geohazards, benthic ecology and deep-sea coral habitat.
New high-resolution multibeam bathymetry and Remotely Operated Vehicle (ROV) dives in the major shelf-breaching and minor. Geomorphology of Submarine Canyons and Related Slope Features Quaternary submarine landslides along the U.S.
Atlantic continental margin, Marine Geology, v. p. • The gradient of the continental slope around Middle Toms Canyon starts out relatively steep for the US east coast. EEZ-SAtlas of the U.S. Exclusive Economic Zone, Atlantic continental margin: U.S.
Geological Survey Miscellaneous Investigations Series I Google Scholar Embley, R.W.,The role of mass transport in the distribution and character of deep ocean sediments with special reference to the North Atlantic: Marine Geology, v. 38 Cited by: The continental margin of the U.S.
Atlantic coast is a/an _____ continental margin, and te continental margin off the west coast of South America ia a/an _____ continental margin. The nearly complete coverage of the U.S. Atlantic continental slope and rise by multibeam bathymetry and backscatter imagery provides an opportunity to reevaluate the distribution of submarine landslides along the margin and reassess the controls on their formation.
Landslides can be divided into two categories based on their source areas. The continental margin is one of the three major zones of the ocean floor, the other two being deep-ocean basins and mid-ocean continental margin is the shallow water area found in proximity to continents.
The continental margin consists of three different features: the continental rise, the continental slope, and the continental shelf. the U.S. Atlantic continental slope and rise by multibeam bathymetry provides a more uniform and detailed view of the geomorphology of submarine landslides than has been previously available.
Although coverage is excellent, several signiﬁcant gaps within the dataset totaling an area of approximat km2 (~8% of the total area). If you could walk out away from shore across the sea floor on a passive continental margin, what is the order of provinces you would cross.
continental shelf, slope, and then the rise A small, rounded, submerged volcanic hill that rises less than 1 kilometer ( mile) above the sea floor is called __________________.
Submarine Canyons Under the ocean there is a different world compared to the land we humans are living. The landscape underwater is spectacular meanwhile explorable. One of the features cannot be found on solid ground is submarine canyon. Submarine canyon is File Size: KB.
A continental margin that has a broad continental shelf, a gentle continental slope, and a pronounced continental rise is known as a passive continental margin.
This type of margin experiences little, if any, volcanic or earthquake activity. The build-up of sediment is the primary activity affecting a passive margin.
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 Cited by: 4.Interplay Between Salt Activities and Slope Instabilities, Bryant Canyon Area, Northwest Gulf of Mexico.
Authors; Submarine slope instability, in D. Brudsen and D.B. Prior Google Scholar. Prior D.B., and E.H. Doyle, Intra-slope canyon morphology and its modification by rockfall processes, U.S. Atlantic Continental Margin, Marine Cited by: 4.The purpose of this study is to classify and compare different submarine canyon morphologies along the continental margin of the Eastern United States.
Ina day bathymetric survey was conducted to map a 1, km stretch of the continental shelf from the Mid-Atlantic (off the DelMarVa Peninsula) to Rhode Island (Figs. 1, 2, 3).