Gakkel Ridge

E11295

geologic formation mid-ocean ridge tectonic plate boundary

Gakkel Ridge is a slow-spreading mid-ocean ridge located beneath the Arctic Ocean, forming the tectonic boundary between the North American and Eurasian plates.

Try in SPARQL Jump to: Surface forms Statements Referenced by

All labels observed (1)

Label	Occurrences
Gakkel Ridge canonical	11

Statements (48)

Predicate	Object
instanceOf	geologic formation ⓘ mid-ocean ridge ⓘ tectonic plate boundary ⓘ
associatedWithProcess	plate tectonics ⓘ seafloor spreading ⓘ
countryOffshoreFrom	Canada ⓘ Greenland ⓘ Russia ⓘ
crustalComposition	basaltic ⓘ
crustType	oceanic crust ⓘ
discoveredBy	Soviet Arctic expeditions ⓘ
extendsFrom	northern Greenland ⓘ
extendsTo	Laptev Sea ⓘ
formsPartOfBoundaryOf	Eurasian Basin ⓘ Nansen Basin ⓘ
geologicalAge	Cenozoic ⓘ
geophysicalCharacteristic	large amagmatic segments ⓘ thin magmatic crust in some segments ⓘ
hasBathymetry	greater depth than many other mid-ocean ridges ⓘ
hasFeature	deep rift valley ⓘ hydrothermal vent fields ⓘ seamounts ⓘ
hasTransformFaults	few and short compared to faster-spreading ridges ⓘ
lithosphereType	oceanic lithosphere ⓘ
locatedIn	Nansen Basin ⓘ surface form: Arctic Basin Arctic Ocean ⓘ
mantleSource	depleted upper mantle ⓘ
namedAfter	Yakov Yakovlevich Gakkel ⓘ
ocean	Arctic Ocean ⓘ
oceanicCrustProduction	low ⓘ
orientation	roughly east–west ⓘ
overlainBy	perennial sea ice ⓘ
partOf	global mid-ocean ridge system ⓘ
relativeSpreadingRateRank	one of the slowest-spreading mid-ocean ridges on Earth ⓘ
researchExpedition	AMORE 2001 (Arctic Mid-Ocean Ridge Expedition) ⓘ USCGC Healy cruises ⓘ
ridgeType	ultra-slow spreading ridge ⓘ
seafloorSpreading	present ⓘ
segmentStructure	segmented ridge axis ⓘ
spreadingRate	approximately 6–13 mm per year ⓘ slow-spreading ⓘ
studiedUsing	bathymetric mapping ⓘ icebreaker-supported surveys ⓘ seismic reflection and refraction ⓘ
tectonicBoundaryBetween	Eurasian Plate ⓘ North American Plate ⓘ
tectonicSetting	divergent plate boundary ⓘ
volcanism	submarine volcanism ⓘ

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: Gakkel Ridge
Description of subject: Gakkel Ridge is a slow-spreading mid-ocean ridge located beneath the Arctic Ocean, forming the tectonic boundary between the North American and Eurasian plates.

Referenced by (11)

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

Mid-Atlantic Ridge → meets → Gakkel Ridge ⓘ

Arctic Ocean → containsFeature → Gakkel Ridge ⓘ

Lomonosov Ridge → boundedBy → Gakkel Ridge ⓘ

Nansen Basin → separatedBy → Gakkel Ridge ⓘ

Nansen Basin → hasAdjacentFeature → Gakkel Ridge ⓘ

Alpha–Mendeleev Ridge complex → relatedTo → Gakkel Ridge ⓘ

Nansen-Gakkel Ridge → alsoKnownAs → Gakkel Ridge ⓘ

global mid-ocean ridge system → includes → Gakkel Ridge ⓘ

AMORE 2001 → researchArea → Gakkel Ridge ⓘ

AMORE 2001 → hasKeyword → Gakkel Ridge ⓘ

Arctic Ocean seafloor → hasFeature → Gakkel Ridge ⓘ