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A fracture zone is a linear feature on the ocean floor—often hundreds, even thousands of kilometers long—resulting from the action of offset mid-ocean ridge axis segments. They are a consequence of plate tectonics .
Some fracture zones such as Chile and Valdivia make up large sections of the Nazca-Antarctic plate boundary. Map of the Chile Rise and its fracture zones in Nazca and the Antarctic plates Active Pacific Ocean fracture zones are perpendicular to the mid-ocean ridges (black lines) in orange shaded region. Since the map was prepared ages not shown ...
The Clipperton fracture zone is the southernmost of the north east Pacific Ocean lineations. It begins east-northeast of the Line Islands and ends in the Middle America Trench off the coast of Central America, [4] [11] [6] forming a rough line on the same latitude as Kiribati and Clipperton Island, from which it gets its name.
It was proposed that the fracture zone be renamed Gibbs fracture zone, as fracture zones are generally named for research vessels. The proposal was accepted only in part, and currently the official name is Charlie–Gibbs fracture zone. [8] Note that the double name refers to the two parallel fracture zones together.
The SWIR is characterised by deep, sub-parallel, and well-delineated fracture zones, sometimes deeper than 6,000 km (3,700 mi), delineated by elevated rims, sometimes reaching up to 2,000 m (6,600 ft) below sea level. These fracture zones are very long and often align with older structures near the continental shelves. [13]
Owen fracture zone. The Owen fracture zone (OFZ), though misnamed as a fracture zone, is a transform fault in the northwest Indian Ocean that separates the Arabian and African plates from the Indian plate.
The ocean floor of the Pacific Ocean is composed of nine oceanic tectonic plates, ... Fracture zones: 11. Mendocino 12. Murray 13. Molokai 14. Clarion 15. Clipperton ...
The Romanche Fracture Zone offsets the Mid-Atlantic ridge by 900 km (560 mi), making it the largest equatorial fracture zone in the Atlantic. According to the normal scenario for the opening of the South Atlantic [clarification needed], it is spreading at a rate of 1.75 cm/year (0.69 in/year) and began forming about . North of and parallel to ...