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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 ...
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 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 ...
Near the equator, the Mid-Atlantic Ridge is divided into the North Atlantic Ridge and the South Atlantic Ridge by the Romanche Trench, a narrow submarine trench with a maximum depth of 7,758 m (25,453 ft), one of the deepest locations of the Atlantic Ocean. This trench, however, is not regarded as the boundary between the North and South ...
A more definitive mapping of fracture zones, including many with no official name, or not meeting the criteria for inclusion on this map, based on the 2015 project of Wessel et al., [1] exists as of 2018. [2]. This page is used on multiple pages and has complex logic so any alteration should be checked as a minor typo can break display on ...
Pages in category "Fracture zones" The following 28 pages are in this category, out of 28 total. ... Romanche fracture zone; Romanche Trench; S. Shackleton fracture zone;
Fracture zones represent the previously active transform-fault lines, which have since passed the active transform zone and are being pushed toward the continents. These elevated ridges on the ocean floor can be traced for hundreds of miles and in some cases even from one continent across an ocean to the other continent.
At c. 126 Ma (left) the Falkland Plateau began to slide past southern Africa and the Paraná-Etendeka LIP had opened the Mid-Atlantic Ridge. At c. 83 Ma (right) the South Atlantic was fully opened and the Romanche Fracture Zone was forming near the Equator.