Southeast Indian Ridge
E56201
The Southeast Indian Ridge is a major mid-ocean spreading center in the southern Indian Ocean that forms part of the global system of divergent tectonic plate boundaries.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Southeast Indian Ridge canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T439525 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Southeast Indian Ridge Context triple: [Antarctic Plate, surroundedBy, Southeast Indian Ridge]
-
A.
Southwest Indian Ridge
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.
-
B.
Mid-Atlantic Ridge
The Mid-Atlantic Ridge is a vast underwater mountain range and divergent tectonic plate boundary running down the center of the Atlantic Ocean, where new oceanic crust is formed.
-
C.
South Scotia Ridge
The South Scotia Ridge is a major submarine mountain chain in the Southern Ocean forming part of the tectonic boundary between the Scotia Plate and the Antarctic Plate.
-
D.
East Pacific Rise
The East Pacific Rise is a major mid-oceanic ridge and seafloor spreading center in the eastern Pacific Ocean, where tectonic plates diverge and new oceanic crust is formed.
-
E.
North Scotia Ridge
The North Scotia Ridge is a major submarine tectonic feature in the South Atlantic that forms the northern boundary of the Scotia Plate between South America and the Antarctic region.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Southeast Indian Ridge Target entity description: The Southeast Indian Ridge is a major mid-ocean spreading center in the southern Indian Ocean that forms part of the global system of divergent tectonic plate boundaries.
-
A.
Southwest Indian Ridge
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.
-
B.
Mid-Atlantic Ridge
The Mid-Atlantic Ridge is a vast underwater mountain range and divergent tectonic plate boundary running down the center of the Atlantic Ocean, where new oceanic crust is formed.
-
C.
South Scotia Ridge
The South Scotia Ridge is a major submarine mountain chain in the Southern Ocean forming part of the tectonic boundary between the Scotia Plate and the Antarctic Plate.
-
D.
East Pacific Rise
The East Pacific Rise is a major mid-oceanic ridge and seafloor spreading center in the eastern Pacific Ocean, where tectonic plates diverge and new oceanic crust is formed.
-
E.
North Scotia Ridge
The North Scotia Ridge is a major submarine tectonic feature in the South Atlantic that forms the northern boundary of the Scotia Plate between South America and the Antarctic region.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
divergent plate boundary
ⓘ
mid-ocean ridge ⓘ spreading center ⓘ |
| ageOfCrustTrend | crust becomes older away from ridge axis ⓘ |
| associatedWith |
earthquakes
ⓘ
hydrothermal activity ⓘ volcanism ⓘ |
| boundaryBetween | Australian Plate and Antarctic Plate ⓘ |
| connectsTo |
Central Indian Ridge
ⓘ
Pacific-Antarctic Ridge ⓘ Southwest Indian Ridge ⓘ |
| countryOffshoreFrom |
Antarctica
ⓘ
Australia ⓘ |
| crustFormationMechanism | partial melting of upwelling mantle ⓘ |
| crustThickness | typical of oceanic crust ⓘ |
| crustTypeProduced | oceanic crust ⓘ |
| discoveredBy | marine geophysical surveys ⓘ |
| extendsFrom |
Indian Ocean Ridge system
ⓘ
surface form:
Indian Ocean Triple Junction
|
| extendsTo |
Pacific-Antarctic Ridge
ⓘ
surface form:
Pacific-Antarctic Ridge region
|
| featureOf | seafloor of the Indian Ocean ⓘ |
| geologicalProcess | seafloor spreading ⓘ |
| hasMorphology | rift valley segments and axial highs ⓘ |
| hasProcess |
magmatic accretion at spreading center
ⓘ
mantle upwelling beneath ridge axis ⓘ |
| heatFlow | elevated near ridge axis ⓘ |
| influences | bathymetry of southern Indian Ocean ⓘ |
| isSegmentedBy |
non-transform offsets
ⓘ
transform faults ⓘ |
| lithosphereType | oceanic lithosphere ⓘ |
| locatedIn |
Indian Ocean
ⓘ
surface form:
southern Indian Ocean
|
| magneticAnomalies | symmetrical about ridge axis ⓘ |
| ocean | Indian Ocean ⓘ |
| orientation | generally east–west ⓘ |
| partOf |
global divergent plate boundary system
ⓘ
global mid-ocean ridge system ⓘ |
| plateBoundaryType | constructive plate boundary ⓘ |
| relativeMotion | Australian Plate moving away from Antarctic Plate ⓘ |
| ridgeAxis | site of active magmatism ⓘ |
| roleInPlateTectonics | records seafloor spreading history of Indian Ocean ⓘ |
| separates |
Antarctic Plate
ⓘ
Indo-Australian Plate ⓘ
surface form:
Australian Plate
|
| spreadingType | slow to intermediate spreading ridge ⓘ |
| studiedInDiscipline |
geophysics
ⓘ
marine geology ⓘ plate tectonics ⓘ |
| tectonicSetting | oceanic-oceanic divergent boundary ⓘ |
| topographicExpression | submarine mountain chain ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Southeast Indian Ridge Description of subject: The Southeast Indian Ridge is a major mid-ocean spreading center in the southern Indian Ocean that forms part of the global system of divergent tectonic plate boundaries.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.