New Hebrides back-arc basin
E736668
The New Hebrides back-arc basin is a seafloor spreading region in the southwest Pacific formed behind the New Hebrides island arc as a result of subduction-related tectonic extension.
All labels observed (3)
| Label | Occurrences |
|---|---|
| New Hebrides arc-back-arc system | 1 |
| New Hebrides back-arc basin canonical | 1 |
| Southwest Pacific marginal basins | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8473164 — 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: New Hebrides back-arc basin Context triple: [New Hebrides Trench, isAdjacentTo, New Hebrides back-arc basin]
-
A.
Ryukyu back-arc basin
The Ryukyu back-arc basin is a seafloor spreading region behind the Ryukyu island arc, formed by the subduction of the Philippine Sea Plate beneath the Eurasian Plate and characterized by active tectonism and volcanism.
-
B.
back-arc Lau Basin
The back-arc Lau Basin is an actively spreading oceanic basin in the southwest Pacific formed behind the Tonga-Kermadec subduction zone, notable for its intense volcanism and hydrothermal activity.
-
C.
New Hebrides volcanic arc
The New Hebrides volcanic arc is a chain of active and dormant volcanoes in the South Pacific formed by the subduction of the Australian Plate beneath the Pacific Plate, running through Vanuatu and surrounding islands.
-
D.
Cascadia back-arc region
The Cascadia back-arc region is a tectonically active area east of the Cascadia subduction zone characterized by crustal extension, volcanism, and associated magmatic and geothermal activity.
-
E.
North Fiji Basin
The North Fiji Basin is a back-arc spreading basin in the southwest Pacific Ocean, characterized by complex tectonic activity and seafloor spreading north of Fiji.
- 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: New Hebrides back-arc basin Target entity description: The New Hebrides back-arc basin is a seafloor spreading region in the southwest Pacific formed behind the New Hebrides island arc as a result of subduction-related tectonic extension.
-
A.
Ryukyu back-arc basin
The Ryukyu back-arc basin is a seafloor spreading region behind the Ryukyu island arc, formed by the subduction of the Philippine Sea Plate beneath the Eurasian Plate and characterized by active tectonism and volcanism.
-
B.
back-arc Lau Basin
The back-arc Lau Basin is an actively spreading oceanic basin in the southwest Pacific formed behind the Tonga-Kermadec subduction zone, notable for its intense volcanism and hydrothermal activity.
-
C.
New Hebrides volcanic arc
The New Hebrides volcanic arc is a chain of active and dormant volcanoes in the South Pacific formed by the subduction of the Australian Plate beneath the Pacific Plate, running through Vanuatu and surrounding islands.
-
D.
Cascadia back-arc region
The Cascadia back-arc region is a tectonically active area east of the Cascadia subduction zone characterized by crustal extension, volcanism, and associated magmatic and geothermal activity.
-
E.
North Fiji Basin
The North Fiji Basin is a back-arc spreading basin in the southwest Pacific Ocean, characterized by complex tectonic activity and seafloor spreading north of Fiji.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
back-arc basin
ⓘ
geological feature ⓘ seafloor spreading center ⓘ |
| associatedWith |
New Hebrides subduction zone
ⓘ
Vanuatu island arc ⓘ |
| developedBehind | New Hebrides volcanic arc ⓘ |
| formedBy | subduction-related tectonic extension ⓘ |
| geologicalOrigin | subduction-driven extension ⓘ |
| hasFeature |
extensional faulting
ⓘ
oceanic crust ⓘ spreading ridges ⓘ |
| hasProcess |
crustal extension
ⓘ
seafloor spreading ⓘ |
| hasRelevanceTo |
arc volcanism
ⓘ
earthquake activity in Vanuatu region ⓘ subduction dynamics ⓘ |
| hasTectonicRegime |
extensional
ⓘ
transtensional ⓘ |
| isPartOf |
New Hebrides arc-back-arc system
ⓘ
linked to:
New Hebrides back-arc basin
|
| isStudiedIn |
geophysics
ⓘ
marine geology ⓘ plate tectonics ⓘ |
| isTypeOf | ocean basin ⓘ |
| locatedBehind |
New Hebrides island arc
ⓘ
linked to:
New Hebrides volcanic arc
|
| locatedIn |
Pacific Ocean
ⓘ
southwest Pacific Ocean ⓘ |
| partOf | southwest Pacific back-arc system ⓘ |
| relatedTo |
convergence between Australian Plate and Pacific Plate
ⓘ
subduction of the Australian Plate ⓘ |
| tectonicSetting | back-arc region ⓘ |
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: New Hebrides back-arc basin Description of subject: The New Hebrides back-arc basin is a seafloor spreading region in the southwest Pacific formed behind the New Hebrides island arc as a result of subduction-related tectonic extension.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: New Hebrides back-arc basin
linked to: New Hebrides back-arc basin