Search results
Results from the WOW.Com Content Network
The Shackleton fracture zone (SFZ) is an undersea fracture zone, mid-oceanic ridge [1] and fault located in the Drake Passage, at the separation between the Scotia plate from the Antarctic plate. [2] It extends between 59° and 60°40' south latitude and between 56°30' and 61° west longitude and runs in a northwest to southeast direction from ...
The mid-ocean ridges of the world are connected and form the Ocean Ridge, a single global mid-oceanic ridge system that is part of every ocean, making it the longest mountain range in the world. The continuous mountain range is 65,000 km (40,400 mi) long (several times longer than the Andes , the longest continental mountain range), and the ...
The Indian Ocean fracture zones are mainly related to the Southwest Indian Ridge and Southeast Indian Ridge mid-ocean ridges. Active Indian Ocean fracture zones are perpendicular to the mid-ocean ridges (black lines) in orange shaded region. Diamantina fracture zone (not a true fracture zone) [15]
The Charlie–Gibbs fracture zone has large amounts of mid-ocean ridge igneous and metamorphic rocks. [3]: 2 At the eastern termination off shore of Newfoundland there is an igneous province found within the otherwise nonvolcanic rifted margin in the region of transition between oceanic and continental crust. [4]: 1135, 1143
If originated from current tectonic forces, they are often referred to as a mid-ocean ridge. In contrast, if formed by past above-water volcanism, they are known as a seamount chain. The largest and best known undersea mountain range is a mid-ocean ridge, the Mid-Atlantic Ridge. [1]
InterRidge is a non-profit organisation that promotes interdisciplinary, international studies in the research of oceanic spreading centres, including mid-ocean ridge and back-arc basin systems. It does so by creating a global research community, planning and coordinating new science programmes that no single nation can achieve alone ...
Corrugated surfaces known as megamullions or oceanic core complexes measure 25 km (16 mi) along-axis and 10–15 km (6.2–9.3 mi) across. When found along other mid-ocean ridges such structures occur at the inside corners of ridge discontinuities, but at the FTFZ they occur on both sides of the ridge away from any non-transform discontinuities. [8]
The Bouvet triple junction although it appears to be a R-R-R type, that is, the three plate boundaries which meet here as mid-ocean ridges: the Mid-Atlantic Ridge (MAR), the Southwest Indian Ridge (SWIR), and the South American-Antarctic Ridge (SAAR) is actually slightly more complex and in transition. [3]