Ascension Island volcanic complex
E324073
The Ascension Island volcanic complex is a large, geologically active volcanic system in the South Atlantic Ocean that forms the foundation of Ascension Island and includes features such as Green Mountain.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Ascension Island volcanic complex canonical | 1 |
| Central volcano of Ascension Island | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3069538 — 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: Ascension Island volcanic complex Context triple: [Green Mountain, isPartOf, Ascension Island volcanic complex]
-
A.
Easter Island volcanic complex
The Easter Island volcanic complex is the geological formation comprising the island’s major volcanoes and related features that created and shape Rapa Nui (Easter Island).
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B.
Garua Harbour volcanic complex
Garua Harbour volcanic complex is an active volcanic system located on the island of New Britain in Papua New Guinea, known for its ongoing geothermal and eruptive activity.
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C.
Alaid Volcano
Alaid Volcano is a prominent, frequently active stratovolcano forming the northernmost and highest peak of Russia’s Kuril Islands.
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D.
Koko Head volcanic complex
Koko Head volcanic complex is a group of volcanic tuff cones and craters on the island of Oʻahu in Hawaii, known for its prominent ridges, hiking trails, and geologic significance within the Honolulu Volcanics.
-
E.
Bogoslov Island Volcano
Bogoslov Island Volcano is an active volcanic island located in the Kuril Islands chain of the northwest Pacific Ocean.
- 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: Ascension Island volcanic complex Target entity description: The Ascension Island volcanic complex is a large, geologically active volcanic system in the South Atlantic Ocean that forms the foundation of Ascension Island and includes features such as Green Mountain.
-
A.
Easter Island volcanic complex
The Easter Island volcanic complex is the geological formation comprising the island’s major volcanoes and related features that created and shape Rapa Nui (Easter Island).
-
B.
Garua Harbour volcanic complex
Garua Harbour volcanic complex is an active volcanic system located on the island of New Britain in Papua New Guinea, known for its ongoing geothermal and eruptive activity.
-
C.
Alaid Volcano
Alaid Volcano is a prominent, frequently active stratovolcano forming the northernmost and highest peak of Russia’s Kuril Islands.
-
D.
Koko Head volcanic complex
Koko Head volcanic complex is a group of volcanic tuff cones and craters on the island of Oʻahu in Hawaii, known for its prominent ridges, hiking trails, and geologic significance within the Honolulu Volcanics.
-
E.
Bogoslov Island Volcano
Bogoslov Island Volcano is an active volcanic island located in the Kuril Islands chain of the northwest Pacific Ocean.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
shield volcano
ⓘ
volcanic complex ⓘ |
| associatedWith |
Ascension hotspot
ⓘ
mantle plume ⓘ |
| composition |
alkali basalt
ⓘ
rhyolite ⓘ trachybasalt ⓘ trachyte ⓘ |
| country | United Kingdom ⓘ |
| createsFeature | oceanic island ⓘ |
| distanceFromNearestContinent |
approximately 1600 km from Africa
ⓘ
approximately 2250 km from South America ⓘ |
| dominantRockType | alkali basalt ⓘ |
| elevation | approximately 859 m at Green Mountain ⓘ |
| eruptionStyle |
effusive eruptions
ⓘ
explosive eruptions ⓘ |
| eruptiveProducts |
lava flows
ⓘ
pyroclastic surges ⓘ tephra ⓘ |
| formsFoundationOf | Ascension Island ⓘ |
| geologicalAge |
Holocene
ⓘ
Pleistocene ⓘ |
| hasGeomorphologicalFeature |
lava plateaus
ⓘ
radial drainage patterns ⓘ steep coastal cliffs ⓘ |
| hasPart |
Ascension Island volcanic complex
self-linksurface differs
ⓘ
surface form:
Central volcano of Ascension Island
Green Mountain ⓘ lava domes ⓘ lava flows ⓘ numerous scoria cones ⓘ pyroclastic deposits ⓘ |
| hasVolcanicEdifice | central composite volcano ⓘ |
| hasVolcanicFieldType | monogenetic volcanic field elements ⓘ |
| influences |
hydrology of Ascension Island
ⓘ
soil development on Ascension Island ⓘ topography of Ascension Island ⓘ |
| lastEruption |
Holocene
ⓘ
surface form:
Holocene epoch
|
| locatedIn |
Ascension Island
ⓘ
South Atlantic ⓘ
surface form:
South Atlantic Ocean
|
| locatedOn | oceanic crust ⓘ |
| partOf | British Overseas Territory of Saint Helena, Ascension and Tristan da Cunha ⓘ |
| region | equatorial South Atlantic ⓘ |
| studiedInDiscipline |
geochemistry
ⓘ
petrology ⓘ plate tectonics ⓘ volcanology ⓘ |
| tectonicSetting |
Mid-Atlantic Ridge
ⓘ
surface form:
Mid-Atlantic Ridge region
intraplate oceanic island setting ⓘ |
| volcanicActivityStatus | potentially active ⓘ |
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: Ascension Island volcanic complex Description of subject: The Ascension Island volcanic complex is a large, geologically active volcanic system in the South Atlantic Ocean that forms the foundation of Ascension Island and includes features such as Green Mountain.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
Ascension Island volcanic complex
→
hasPart
→
Ascension Island volcanic complex
self-linksurface differs
ⓘ
this entity surface form:
Central volcano of Ascension Island