A mid-ocean ridge on the bed of the south-west Indian Ocean and south-east Atlantic Ocean
Approximate surface projection on southern oceans of Southwest Indian Ridge (white) and fracture zones (shades of orange). Click to expand map to obtain interactive details.
Separating the African (or Nubian-Somali plates) and Antarctic plates, the Southwest Indian Ridge (SWIR) stretches 7,700 km (4,800 mi) from the Atlantic Ocean to the Indian Ocean. With an average spreading rate of 14–15 millimetres per year (0.55–0.59 in/year), the SWIR is one of the slowest-spreading mid-ocean ridges on Earth. Characterised by numerous large transform offsets, most of the SWIR is highly segmented and oblique relative to the spreading direction.[1]
The Southwest Indian Ridge (SWIR) is a mid-ocean ridge located along the floors of the south-west Indian Ocean and south-east Atlantic Ocean. A divergent tectonic plate boundary separating the Somali Plate to the north from the Antarctic Plate to the south, the SWIR is characterised by ultra-slow spreading rates (only exceeding those of the Gakkel Ridge in the Arctic) combined with a fast lengthening of its axis between the two flanking triple junctions, Rodrigues (20°30′S70°00′E / 20.500°S 70.000°E / -20.500; 70.000) in the Indian Ocean and Bouvet (54°17′S1°5′W / 54.283°S 1.083°W / -54.283; -1.083) in the Atlantic Ocean.[2]
^Standish et al. 2008, Regional setting, p. 3:5
^Patriat et al. 1997, Abstract
and 27 Related for: Southwest Indian Ridge information
The SouthwestIndianRidge (SWIR) is a mid-ocean ridge located along the floors of the south-west Indian Ocean and south-east Atlantic Ocean. A divergent...
kilometers The Indian Ocean fracture zones are mainly related to the SouthwestIndianRidge and Southeast IndianRidge mid-ocean ridges. Diamantina Fracture...
Sierra Wireless, a multinational communication company SouthwestIndianRidge, a mid-ocean ridge between Africa and Antarctica Svir (disambiguation) This...
The Central IndianRidge (CIR) is a north–south-trending mid-ocean ridge in the western Indian Ocean. The morphology of the CIR is characteristic of slow...
National Earthquake Information Center (20 January 2024). "M 6.2 - SouthwestIndianRidge". United States Geological Survey. Retrieved 20 January 2024. National...
Anatolian Plate, and on the south by the Antarctic Plate at the SouthwestIndianRidge. All of these are divergent or spreading boundaries with the exception...
The Southeast IndianRidge (SEIR) is a mid-ocean ridge in the southern Indian Ocean. A divergent tectonic plate boundary stretching almost 6,000 km (3...
Indian Ridge. The Somali-Antarctic boundary spreading ridge is known as the SouthwestIndianRidge. The western boundary with the African Plate is diverging...
understood. What is known is: Southern boundary – The SouthwestIndianRidge, an ultra-slow spreading ridge with a slow spreading rate of about 12–18 mm/yr...
detail in the fracture zones and magnetic anomalies flanking the SouthwestIndianRidge. The Madagascar block and the Mascarene Plateau, stretching from...
(1999). "Evidence for motion between Nubia and Somalia along the SouthwestIndianridge". Nature. 398 (6722): 64–67. Bibcode:1999Natur.398...64C. doi:10...
the Central IndianRidge (CIR, between the African and Indo-Australian plates) with a spreading rate of 50 mm/yr; the SouthwestIndianRidge (SWIR, between...
characterised by a limited supply of upwelling magma, such as the SouthwestIndianRidge. These detachment faults are associated with the development of...
; Mendel, V.; Rommeveaux-Jestin, C. (1997). "Propagation of the SouthwestIndianRidge at the Rodrigues Triple Junction". Journal Marine Geophysical Researches...
Madagascar and west of Western Australia, adjacent to the mid-ocean SouthwestIndianRidge. Burckle Crater's position was determined in 2006 by the Holocene...
Mid-ocean ridge (the longest mountain range on Earth) Gakkel Ridge Mid-Atlantic ridgeSouthwestIndianRidge Central IndianRidge Southeast IndianRidge Pacific-Antarctic...
The Pine RidgeIndian Reservation (Lakota: Wazí Aháŋhaŋ Oyáŋke), also called Pine Ridge Agency, is an Oglala Lakota Indian reservation located in the...
polychaete (Polynoidae: Bathymoorea) on the ultraslow-spreading SouthwestIndianRidge". Deep Sea Research Part I: Oceanographic Research Papers. 191:...
(part of the Agulhas-Falkland Fracture Zone) to the north and the SouthwestIndianRidge to the south; by the Meteor Rise to the west and the Agulhas Plateau...
Carlsberg Ridge – Tectonic plate ridge Southeast IndianRidge – Mid-ocean ridge in the southern Indian Ocean SouthwestIndianRidge – A mid-ocean ridge on the...
mid-ocean ridge. It confirms that the mantle and crust of Gakkel ridge, like some segments of the SouthwestIndianRidge, are very cold. The Gakkel ridge features...
length of 42 mm. It is distributed in the western outreach of the SouthwestIndianRidge. The crab is caught during bottom trawling for Lepidonotothen squamifrons...
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