Mid-Atlantic Ridge

E692

divergent plate boundary mid-ocean ridge underwater mountain range

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.

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AI illustration

All labels observed (18)

Label	Occurrences
Mid-Atlantic Ridge canonical	78
Mid-Atlantic Ridge system	8
Mid-Atlantic Ridge volcanic system	8
Mid-Atlantic Ridge region	3
Atlantic rift system	1
Iceland hotspot via Mid-Atlantic Ridge	1
Mid-Atlantic Ridge axis	1
Mid-Atlantic Ridge in Iceland	1
Mid-Atlantic Ridge rift system	1
Mid-Atlantic Ridge surface expression	1
Mid-Atlantic Ridge transform faults	1
Mid-Atlantic Ridge volcanic archipelago	1
Mid-Atlantic Ridge–Gloria Fault transition zone	1
North Atlantic Ridge	1
North Atlantic spreading ridge system	1
North Atlantic tectonic boundary	1
Reykjanes Ridge	1
mid-Atlantic Ridge	1

How this entity was disambiguated

This entity first appeared as the object of triple T17576 — 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: Mid-Atlantic Ridge
Context triple: [Atlantic Ocean, containsFeature, Mid-Atlantic Ridge]

A. Cape Cod
Cape Cod is a hook-shaped peninsula in southeastern Massachusetts known for its sandy beaches, maritime villages, and popular summer tourism.
B. East River
The East River is a tidal strait in New York City that separates Manhattan from Brooklyn and Queens and serves as a major waterway spanned by several iconic bridges.
C. Atlantic Ocean
The Atlantic Ocean is the world's second-largest ocean, separating the Americas from Europe and Africa and serving as a major route for global climate regulation, trade, and exploration.
D. Hudson River
The Hudson River is a major waterway in eastern New York State that flows south past cities like Albany and New York City before emptying into the Atlantic Ocean at New York Harbor.
E. Coastal Ranges
The Coastal Ranges are a series of mountain ranges running along California’s Pacific coast, known for their rugged terrain, diverse ecosystems, and influence on the state’s climate and agriculture.
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: Mid-Atlantic Ridge
Target entity description: 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.

A. Cape Cod
Cape Cod is a hook-shaped peninsula in southeastern Massachusetts known for its sandy beaches, maritime villages, and popular summer tourism.
B. East River
The East River is a tidal strait in New York City that separates Manhattan from Brooklyn and Queens and serves as a major waterway spanned by several iconic bridges.
C. Atlantic Ocean
The Atlantic Ocean is the world's second-largest ocean, separating the Americas from Europe and Africa and serving as a major route for global climate regulation, trade, and exploration.
D. Hudson River
The Hudson River is a major waterway in eastern New York State that flows south past cities like Albany and New York City before emptying into the Atlantic Ocean at New York Harbor.
E. Coastal Ranges
The Coastal Ranges are a series of mountain ranges running along California’s Pacific coast, known for their rugged terrain, diverse ecosystems, and influence on the state’s climate and agriculture.
F. None of above. chosen

Statements (49)

Predicate	Object
instanceOf	divergent plate boundary ⓘ mid-ocean ridge ⓘ underwater mountain range ⓘ
associatedWith	Iceland ⓘ mid-ocean ridge basalt ⓘ
averageSpreadingRate	about 2.5 cm per year ⓘ
biologicalSignificance	supports chemosynthetic ecosystems ⓘ
crustTypeFormed	basaltic oceanic crust ⓘ
discoveredBy	Marie Tharp ⓘ
discoveryPeriod	mid-20th century detailed mapping ⓘ
earthquakeActivity	frequent shallow earthquakes ⓘ
evidenceFor	continental drift ⓘ plate tectonics ⓘ
extendsFrom	Arctic Ocean ⓘ
extendsTo	Southern Ocean ⓘ
geologicalProcess	seafloor spreading ⓘ
governedBy	Mid-Atlantic Ridge ecosystem management bodies ⓘ
hasFeature	black smokers ⓘ fracture zones ⓘ hydrothermal vents ⓘ rift valley ⓘ transform faults ⓘ
highestPoint	Icelandic segment ⓘ
length	over 16,000 km ⓘ
locatedIn	Atlantic Ocean ⓘ
magneticAnomaliesShow	symmetrical magnetic striping ⓘ
mappedBy	Bruce C. Heezen ⓘ
meets	Gakkel Ridge ⓘ Scotia Ridge ⓘ Southwest Indian Ridge ⓘ
nearbyFeature	Ascension Island ⓘ Azores ⓘ Tristan da Cunha ⓘ
orientation	roughly north–south ⓘ
partOf	global mid-ocean ridge system ⓘ
passesThrough	Iceland ⓘ
produces	new oceanic crust ⓘ
segmentIncludes	Bouvet Triple Junction region ⓘ Charlie-Gibbs Fracture Zone ⓘ Reykjanes Ridge ⓘ linked to: Mid-Atlantic Ridge Romanche Fracture Zone ⓘ
separates	African Plate ⓘ Eurasian Plate ⓘ North American Plate ⓘ South American Plate ⓘ
spreadingRateType	slow-spreading ridge ⓘ
tectonicSetting	divergent boundary ⓘ
volcanismType	submarine volcanism ⓘ
waterDepth	typically 2,000–3,000 meters below sea level ⓘ

How these facts were elicited

Referenced by (111)

Full triples — surface form annotated when it differs from this entity's canonical label.

Atlantic Ocean → containsFeature → Mid-Atlantic Ridge ⓘ

Mid-Atlantic Ridge → segmentIncludes → Reykjanes Ridge ⓘ

linked to: Mid-Atlantic Ridge

Charlie-Gibbs Fracture Zone → partOf → Mid-Atlantic Ridge system ⓘ

linked to: Mid-Atlantic Ridge

Charlie-Gibbs Fracture Zone → offsets → Mid-Atlantic Ridge ⓘ

Charlie-Gibbs Fracture Zone → disruptsContinuityOf → Mid-Atlantic Ridge ⓘ

North American Plate → boundaryFeature → Mid-Atlantic Ridge ⓘ

Marie Tharp → mapped → Mid-Atlantic Ridge ⓘ

Eurasian Plate → formsFeature → Mid-Atlantic Ridge ⓘ

Romanche Fracture Zone → offsets → Mid-Atlantic Ridge ⓘ

Bouvet Triple Junction region → hasNearbyFeature → Mid-Atlantic Ridge ⓘ

Southwest Indian Ridge → connectsTo → Mid-Atlantic Ridge ⓘ

South American Plate → associatedWith → Mid-Atlantic Ridge ⓘ

South American Plate → hasBoundaryFeature → Mid-Atlantic Ridge ⓘ

African Plate → boundedBy → Mid-Atlantic Ridge ⓘ

African Plate → associatedWith → Iceland hotspot via Mid-Atlantic Ridge ⓘ

linked to: Mid-Atlantic Ridge

Charlie-Gibbs Fracture Zone → partOf → Mid-Atlantic Ridge ⓘ

subject linked to: RRS Charles Darwin and USNS Gibbs (commemorative naming origin)

Jan Mayen → locatedOn → Mid-Atlantic Ridge ⓘ

Azores Triple Junction → associatedWith → Mid-Atlantic Ridge ⓘ

Azores Triple Junction → near → Mid-Atlantic Ridge–Gloria Fault transition zone ⓘ

linked to: Mid-Atlantic Ridge

Hvannadalshnúkur → geologicalSetting → Mid-Atlantic Ridge ⓘ

Þingvellir National Park → hasGeologicalFeature → Mid-Atlantic Ridge ⓘ

Romanche Trench → offsets → Mid-Atlantic Ridge ⓘ

Romanche Trench → isMajorOffsetOf → Mid-Atlantic Ridge ⓘ

Romanche Trench → crosses → Mid-Atlantic Ridge ⓘ

South Atlantic mid-ocean ridge system → partOf → Mid-Atlantic Ridge ⓘ

American-Antarctic Ridge → isLocatedSouthOf → Mid-Atlantic Ridge ⓘ

American-Antarctic Ridge → isConnectedTo → Mid-Atlantic Ridge ⓘ

Mount Pico → isPartOf → Mid-Atlantic Ridge ⓘ

Mount Pico → range → Mid-Atlantic Ridge ⓘ

Queen Mary’s Peak → isPartOf → Mid-Atlantic Ridge volcanic system ⓘ

linked to: Mid-Atlantic Ridge

Jan Mayen Ridge → partOf → North Atlantic tectonic boundary ⓘ

linked to: Mid-Atlantic Ridge

Jan Mayen Ridge → relatedTo → Mid-Atlantic Ridge ⓘ

Central Atlantic Ocean floor → contains → Mid-Atlantic Ridge ⓘ

Central Atlantic Ocean floor → youngerNear → Mid-Atlantic Ridge ⓘ

Southwest Iceland → geologicalSetting → Mid-Atlantic Ridge ⓘ

South Atlantic → containsFeature → Mid-Atlantic Ridge ⓘ

Grindavík → locatedOn → Mid-Atlantic Ridge ⓘ

Culpeper Basin → partOf → Atlantic rift system ⓘ

linked to: Mid-Atlantic Ridge

Gloria Fault → locatedBetween → Mid-Atlantic Ridge ⓘ

Terceira Rift → near → Mid-Atlantic Ridge ⓘ

Azores Plateau → associatedWith → Mid-Atlantic Ridge ⓘ

Azores Plateau → boundedBy → Mid-Atlantic Ridge ⓘ

Ewing Seamount → locatedNear → Mid-Atlantic Ridge ⓘ

Ewing Fracture Zone → partOf → Mid-Atlantic Ridge system ⓘ

subject linked to: Ewing fracture zone

linked to: Mid-Atlantic Ridge

Ewing Fracture Zone → offsets → Mid-Atlantic Ridge ⓘ

subject linked to: Ewing fracture zone

Öræfajökull → geologicalSetting → Mid-Atlantic Ridge ⓘ

Öræfajökull volcanic system → tectonicSetting → Mid-Atlantic Ridge region ⓘ

linked to: Mid-Atlantic Ridge

Þingvallavatn → locatedOn → Mid-Atlantic Ridge ⓘ

Almannagjá fault → tectonicSetting → Mid-Atlantic Ridge ⓘ

Almannagjá fault → relatedTo → Mid-Atlantic Ridge in Iceland ⓘ

linked to: Mid-Atlantic Ridge

All labels observed (18)

How this entity was disambiguated Show

Statements (49)

How these facts were elicited Show

Referenced by (111)

How this entity was disambiguated

How these facts were elicited