Southwest Indian Ridge
E11927
The Southwest Indian Ridge is a slow-spreading mid-ocean ridge in the southern Indian Ocean that forms part of the global system of divergent tectonic plate boundaries.
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
divergent plate boundary
ⓘ
mid-ocean ridge ⓘ oceanic spreading center ⓘ |
| ageProgression | oceanic crust becomes older away from ridge axis ⓘ |
| associatedWith |
earthquakes
ⓘ
hydrothermal activity ⓘ volcanism ⓘ |
| bathymetry | ridge crest lies at several thousand meters water depth ⓘ |
| connectsTo |
Central Indian Ridge
ⓘ
Mid-Atlantic Ridge ⓘ Southeast Indian Ridge ⓘ |
| countryOffshoreFrom |
Antarctica
ⓘ
Madagascar ⓘ South Africa ⓘ |
| crustType | oceanic crust ⓘ |
| discoveredBy | marine geophysical surveys ⓘ |
| formsBoundaryBetween |
African Plate and Antarctic Plate
ⓘ
African Plate and Indo-Australian Plate ⓘ |
| geologicalProcess | seafloor spreading ⓘ |
| hasCrustalThickness | relatively thin oceanic crust compared to fast-spreading ridges ⓘ |
| hasFeature |
fracture zones
ⓘ
segmented ridge axis ⓘ transform faults ⓘ |
| hasMagmatism | spatially variable magmatic activity ⓘ |
| hasMorphology | deep axial valley typical of slow-spreading ridges ⓘ |
| hasTectonics | extensional faulting along ridge axis ⓘ |
| influences |
Indian Ocean basin evolution
ⓘ
patterns of Indian Ocean circulation at abyssal depths ⓘ |
| isExampleOf | slow-spreading ridge ⓘ |
| isSegmentOf | Indian Ocean Ridge system ⓘ |
| linkedTo | triple junctions in the Indian Ocean ⓘ |
| lithosphereType | oceanic lithosphere ⓘ |
| locatedIn | southern Indian Ocean ⓘ |
| mantleSource | depleted upper mantle ⓘ |
| ocean | Indian Ocean ⓘ |
| partOf |
global mid-ocean ridge system
ⓘ
global system of divergent tectonic plate boundaries ⓘ |
| produces | mid-ocean ridge basalt ⓘ |
| researchField |
marine geology
ⓘ
plate tectonics ⓘ |
| separates |
African Plate
ⓘ
Antarctic Plate ⓘ Indo-Australian Plate ⓘ |
| spreadingRate | slow-spreading ⓘ |
| spreadingStyle | oblique spreading in some segments ⓘ |
| tectonicSetting | divergent boundary between tectonic plates ⓘ |
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.