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The trench has been formed by the actions of the Romanche Fracture Zone, a portion of which is an active transform boundary offsetting sections of the Mid-Atlantic Ridge. [ 1 ] It was named after the French navy ship La Romanche , commanded by captain Louis-Ferdinand Martial which on 11 October 1883 made soundings that revealed the trench.
Also known as the Romanche Trench, this fracture zone separates the North Atlantic and South Atlantic oceans. The trench reaches 7,758 m (25,453 ft) deep, is 300 km (190 mi) long, and has a width of 19 km (12 mi). The fracture zone offsets the Mid-Atlantic Ridge by more than 640 km (400 mi). [12]
Some use the term "transform fault" to describe the seismically and tectonically active portion of a fracture zone after John Tuzo Wilson's concepts first developed with respect to the Mid-Atlantic Ridge. [2] The term fracture zone has a distinct geological meaning, but it is also used more loosely in the naming of some oceanic features.
Charlie–Gibbs fracture zone; Chile fracture zone; Clarion–Clipperton zone; D. ... Romanche fracture zone; Romanche Trench; S. Shackleton fracture zone;
File information Description Named fracture zones Source See Fracture zone, List of fracture zones and individual named in Wikipedia fracture zones . Date 2023-10-31 Author
Charlie–Gibbs fracture zone is a system of two parallel fracture zones. It is the most prominent interruption of the Mid-Atlantic Ridge between the Azores and Iceland , with the longest faults in the North Atlantic, and is ecologically an important biosystems boundary.
A fracture is any separation in a geologic formation, such as a joint or a fault that divides the rock into two or more pieces. A fracture will sometimes form a deep fissure or crevice in the rock. Fractures are commonly caused by stress exceeding the rock strength, causing the rock to lose cohesion along its weakest plane. [ 1 ]
The cohesive zone model (CZM) is a model in fracture mechanics where fracture formation is regarded as a gradual phenomenon and separation of the crack surfaces takes place across an extended crack tip, or cohesive zone, and is resisted by cohesive tractions.