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Lamb waves propagate in solid plates or spheres. [1] They are elastic waves whose particle motion lies in the plane that contains the direction of wave propagation and the direction perpendicular to the plate. In 1917, the English mathematician Horace Lamb published his classic analysis and description of acoustic waves of this type. Their ...
Map of the Dead Sea Transform showing the main fault segments and motion of the Arabian plate relative to the African plate, [1] from GPS data The Dead Sea Transform (DST) fault system, also sometimes referred to as the Dead Sea Rift, is a series of faults that run for about 1,000 km from the Marash triple junction (a junction with the East Anatolian Fault in southeastern Turkey) to the ...
The North Norfolk Basin has also been called the Central Norfolk Basin, [4] although the later name also includes in some recent mappings the plateaus and Forester basin. [11] The South Norfolk Basin has also been called the Southern Norfolk Basin, Gazelle Basin, Gazelle Deep and Three Kings Basin, as well as historically just Norfolk Basin. [7]
Red Sea Rift between the African (Nubian) Plate and the Arabian plate. The Red Sea Rift is a mid-ocean ridge between two tectonic plates, the African plate and the Arabian plate. It extends from the Dead Sea Transform fault system, and ends at an intersection with the Aden Ridge and the East African Rift, forming the Afar triple junction in the ...
At the shelf break begins the continental slope, which can be 1–5 km above the deep-ocean floor. The continental slope often exhibits features called submarine canyons. [4] Submarine canyons often cut into the continental shelves deeply, with near vertical sides, and continue to cut the morphology to the abyssal plain. [5]
Marine geology or geological oceanography is the study of the history and structure of the ocean floor. It involves geophysical, geochemical, sedimentological and paleontological investigations of the ocean floor and coastal zone.
It is a large guyot, 100 km (62 mi) wide at its base with a small part of its reefal or lagoonal summit reaching 440 m (1,440 ft) below sea level. The bending of the Pacific plate at the Tonga Trench is currently slicing it like a loaf of bread: inside the guyot a north–south-trending horst and graben system is developing parallel to the ...
DVM is important to the functioning of deep-sea food webs and the biologically-driven sequestration of carbon. [3] In terms of biomass, DVM is the largest synchronous migration in the world. [4] [2] It is not restricted to any one taxon, as examples are known from crustaceans , [5] molluscs , [6] and ray-finned fishes . [7]