Cobb Seamount
E358566
Cobb Seamount is a large submarine volcanic seamount in the northeast Pacific Ocean, notable as a prominent undersea feature and rich marine habitat off the coast of North America.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Cobb Seamount canonical | 2 |
| Cobb–Eickelberg Seamount chain | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3460104 — 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: Cobb Seamount Context triple: [Cobb Offset, namedAfter, Cobb Seamount]
-
A.
Ampère Seamount
Ampère Seamount is an underwater mountain in the Atlantic Ocean named in honor of the French physicist and mathematician André-Marie Ampère.
-
B.
Ewing Seamount
Ewing Seamount is an underwater volcanic mountain in the Atlantic Ocean named in honor of geophysicist Maurice Ewing.
-
C.
Suiko Seamount
Suiko Seamount is an underwater volcanic mountain in the northwestern Pacific Ocean that forms part of the long, age-progressive Hawaiian–Emperor seamount chain.
-
D.
Magnaghi Seamount
Magnaghi Seamount is an underwater volcanic mountain located in the Tyrrhenian Sea, part of the complex seafloor topography of the western Mediterranean.
-
E.
Vavilov Seamount
Vavilov Seamount is a large underwater volcanic mountain located in the Tyrrhenian Sea, notable for its role in the region’s complex tectonic and magmatic activity.
- 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: Cobb Seamount Target entity description: Cobb Seamount is a large submarine volcanic seamount in the northeast Pacific Ocean, notable as a prominent undersea feature and rich marine habitat off the coast of North America.
-
A.
Ampère Seamount
Ampère Seamount is an underwater mountain in the Atlantic Ocean named in honor of the French physicist and mathematician André-Marie Ampère.
-
B.
Ewing Seamount
Ewing Seamount is an underwater volcanic mountain in the Atlantic Ocean named in honor of geophysicist Maurice Ewing.
-
C.
Suiko Seamount
Suiko Seamount is an underwater volcanic mountain in the northwestern Pacific Ocean that forms part of the long, age-progressive Hawaiian–Emperor seamount chain.
-
D.
Magnaghi Seamount
Magnaghi Seamount is an underwater volcanic mountain located in the Tyrrhenian Sea, part of the complex seafloor topography of the western Mediterranean.
-
E.
Vavilov Seamount
Vavilov Seamount is a large underwater volcanic mountain located in the Tyrrhenian Sea, notable for its role in the region’s complex tectonic and magmatic activity.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
seamount
ⓘ
submarine volcano ⓘ |
| baseDepthBelowSeaLevel | approximately 3000 metres ⓘ |
| composition | basalt ⓘ |
| countryExclusiveEconomicZone | Canada ⓘ |
| discoveredBy |
United States Coast and Geodetic Survey
ⓘ
linked to:
United States Coast Survey
|
| discoveryMethod | echo sounding ⓘ |
| elevationAboveSeafloor | approximately 2700 metres ⓘ |
| geologicalAge | Miocene ⓘ |
| geologicalOrigin | hotspot volcanism ⓘ |
| hasCoordinateSystem | geographic coordinates ⓘ |
| hasEcologicalRole |
stepping-stone habitat for marine species
ⓘ
undersea oasis ⓘ |
| hasFeature | flat-topped summit ⓘ |
| hasHabitatType |
coralline algae beds
ⓘ
deep-sea coral habitat ⓘ rocky reef ⓘ |
| hasManagementMeasure | fisheries closures on summit area ⓘ |
| isImportantFor |
commercial fisheries
ⓘ
marine biodiversity ⓘ |
| isPartOf | North Pacific seamount province ⓘ |
| isSiteOf | intense plankton productivity ⓘ |
| isUnderJurisdictionOf | Fisheries and Oceans Canada ⓘ |
| locatedIn |
northeast Pacific Ocean
ⓘ
linked to:
eastern North Pacific Ocean
|
| locatedOffCoastOf |
British Columbia
ⓘ
North America ⓘ Washington State ⓘ
linked to:
Washington State, United States
|
| namedAfter | Cobb research vessel ⓘ |
| nameLanguage | English ⓘ |
| ocean | Pacific Ocean ⓘ |
| partOf |
Cobb–Eickelberg Seamount chain
ⓘ
linked to:
Cobb Seamount
|
| shape | guyot ⓘ |
| subjectOf |
benthic ecology studies
ⓘ
fisheries research ⓘ oceanographic research ⓘ |
| summitDepthBelowSeaLevel |
approximately 34 metres
ⓘ
approximately 40 metres ⓘ |
| supportsSpecies |
Pacific ocean perch
ⓘ
cold-water corals ⓘ crustaceans ⓘ rockfish ⓘ sablefish ⓘ sponges ⓘ |
| threatenedBy |
bottom-contact fishing gear
ⓘ
climate change ⓘ ocean acidification ⓘ |
| volcanicProvince | Cobb hotspot ⓘ |
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: Cobb Seamount Description of subject: Cobb Seamount is a large submarine volcanic seamount in the northeast Pacific Ocean, notable as a prominent undersea feature and rich marine habitat off the coast of North America.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Cobb Seamount