Eurasian spreading center
E634822
The Eurasian spreading center is a tectonic plate boundary in the Arctic Ocean where the Eurasian and North American plates diverge, creating new oceanic crust along mid-ocean ridges such as the Nansen-Gakkel Ridge.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Eurasian Basin spreading center | 1 |
| Eurasian spreading center canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7010614 — 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: Eurasian spreading center Context triple: [Nansen-Gakkel Ridge, segmentOf, Eurasian spreading center]
-
A.
Galápagos Spreading Center
The Galápagos Spreading Center is a mid-ocean ridge segment in the eastern Pacific where tectonic plates diverge and new oceanic crust forms near the Galápagos Islands.
-
B.
Gulf of Aden spreading center
The Gulf of Aden spreading center is a tectonic plate boundary in the northwestern Indian Ocean where seafloor spreading occurs, linking the Red Sea rift to the Carlsberg Ridge and contributing to the opening of the Gulf of Aden.
-
C.
Alpha–Mendeleev Ridge complex
The Alpha–Mendeleev Ridge complex is a large submarine volcanic ridge system in the Arctic Ocean, forming part of the ocean floor topography between the Eurasian and Amerasian basins.
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D.
Cocos–Nazca spreading center
The Cocos–Nazca spreading center is a mid-ocean ridge in the eastern Pacific where tectonic divergence forms and separates the Cocos and Nazca plates.
-
E.
Romanche Fracture Zone
The Romanche Fracture Zone is a major transform fault and deep-sea fracture zone in the equatorial Atlantic Ocean that offsets the Mid-Atlantic Ridge and hosts one of the deepest points in the Atlantic basin.
- 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: Eurasian spreading center Target entity description: The Eurasian spreading center is a tectonic plate boundary in the Arctic Ocean where the Eurasian and North American plates diverge, creating new oceanic crust along mid-ocean ridges such as the Nansen-Gakkel Ridge.
-
A.
Galápagos Spreading Center
The Galápagos Spreading Center is a mid-ocean ridge segment in the eastern Pacific where tectonic plates diverge and new oceanic crust forms near the Galápagos Islands.
-
B.
Gulf of Aden spreading center
The Gulf of Aden spreading center is a tectonic plate boundary in the northwestern Indian Ocean where seafloor spreading occurs, linking the Red Sea rift to the Carlsberg Ridge and contributing to the opening of the Gulf of Aden.
-
C.
Alpha–Mendeleev Ridge complex
The Alpha–Mendeleev Ridge complex is a large submarine volcanic ridge system in the Arctic Ocean, forming part of the ocean floor topography between the Eurasian and Amerasian basins.
-
D.
Cocos–Nazca spreading center
The Cocos–Nazca spreading center is a mid-ocean ridge in the eastern Pacific where tectonic divergence forms and separates the Cocos and Nazca plates.
-
E.
Romanche Fracture Zone
The Romanche Fracture Zone is a major transform fault and deep-sea fracture zone in the equatorial Atlantic Ocean that offsets the Mid-Atlantic Ridge and hosts one of the deepest points in the Atlantic basin.
- F. None of above. chosen
Statements (35)
| Predicate | Object |
|---|---|
| instanceOf |
divergent plate boundary
ⓘ
mid-ocean ridge system ⓘ tectonic plate boundary ⓘ |
| alsoKnownAs |
Eurasian Basin spreading center
ⓘ
linked to:
Eurasian spreading center
|
| associatedWith |
earthquakes
ⓘ
hydrothermal activity ⓘ normal faulting ⓘ rifting ⓘ volcanism ⓘ |
| controls | age distribution of Arctic Ocean floor ⓘ |
| creates | new oceanic crust ⓘ |
| crustTypeFormed | oceanic crust ⓘ |
| discoveredBy | marine geophysical surveys ⓘ |
| evidenceFrom |
bathymetric mapping
ⓘ
magnetic anomaly patterns ⓘ seismic profiling ⓘ |
| extendsAcross | Eurasian Basin ⓘ |
| geologicalProcess | seafloor spreading ⓘ |
| includes | Nansen-Gakkel Ridge ⓘ |
| influences | bathymetry of the Eurasian Basin ⓘ |
| linkedTo | Mid-Atlantic Ridge ⓘ |
| locatedIn | Arctic Ocean ⓘ |
| magmaSource | upwelling mantle material ⓘ |
| partOf |
Arctic mid-ocean ridge system
ⓘ
linked to:
Arctic Mid-Ocean Ridge system
global mid-ocean ridge system ⓘ |
| plateBoundaryType | constructive boundary ⓘ |
| researchField |
marine geology
ⓘ
plate tectonics ⓘ |
| ridgeMorphology |
deep axial valley
ⓘ
sparsely distributed volcanic centers ⓘ |
| separates |
Eurasian Plate
ⓘ
North American Plate ⓘ |
| spreadingRate | less than 20 mm per year ⓘ |
| spreadingType | ultra-slow spreading ridge ⓘ |
| tectonicSetting | oceanic-oceanic divergent boundary ⓘ |
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: Eurasian spreading center Description of subject: The Eurasian spreading center is a tectonic plate boundary in the Arctic Ocean where the Eurasian and North American plates diverge, creating new oceanic crust along mid-ocean ridges such as the Nansen-Gakkel Ridge.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Eurasian spreading center