Vaalbara supercraton
E636175
Vaalbara supercraton is a proposed early Archean supercontinent thought to have formed from some of Earth’s oldest cratons, including the Kaapvaal and Pilbara cratons.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Pilbara–Kaapvaal supercraton (hypothesized) | 1 |
| Vaalbara supercraton canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6991074 — 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: Vaalbara supercraton Context triple: [Kaapvaal Craton, hypothesizedToHaveBeenPartOf, Vaalbara supercraton]
-
A.
Kaapvaal Craton
The Kaapvaal Craton is one of Earth’s oldest and most stable pieces of continental crust, located in southern Africa and renowned for hosting some of the world’s richest gold deposits.
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B.
Superior craton
The Superior craton is one of Earth’s largest and oldest stable continental cores, forming much of the ancient geological foundation of central and eastern Canada and parts of the northern United States.
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C.
Kalahari Craton
The Kalahari Craton is an ancient, stable block of continental crust underlying much of southern Africa and forming a key component of Earth’s early Precambrian geology.
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D.
Rae craton
Rae craton is an ancient, stable block of Earth’s continental crust that forms a major geological core of the Canadian Shield within the North American craton.
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E.
Congo Craton
The Congo Craton is an ancient, stable block of continental crust in central Africa that forms the geological core of much of the Congo Basin.
- 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: Vaalbara supercraton Target entity description: Vaalbara supercraton is a proposed early Archean supercontinent thought to have formed from some of Earth’s oldest cratons, including the Kaapvaal and Pilbara cratons.
-
A.
Kaapvaal Craton
The Kaapvaal Craton is one of Earth’s oldest and most stable pieces of continental crust, located in southern Africa and renowned for hosting some of the world’s richest gold deposits.
-
B.
Superior craton
The Superior craton is one of Earth’s largest and oldest stable continental cores, forming much of the ancient geological foundation of central and eastern Canada and parts of the northern United States.
-
C.
Kalahari Craton
The Kalahari Craton is an ancient, stable block of continental crust underlying much of southern Africa and forming a key component of Earth’s early Precambrian geology.
-
D.
Rae craton
Rae craton is an ancient, stable block of Earth’s continental crust that forms a major geological core of the Canadian Shield within the North American craton.
-
E.
Congo Craton
The Congo Craton is an ancient, stable block of continental crust in central Africa that forms the geological core of much of the Congo Basin.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
hypothetical geological entity
ⓘ
supercontinent ⓘ |
| associatedWith |
early Archean sedimentary basins
ⓘ
early continental crust growth ⓘ early plate tectonics ⓘ |
| breakupProcess | Archean rifting and subduction ⓘ |
| contains |
Kaapvaal craton
NERFINISHED
ⓘ
Pilbara craton NERFINISHED ⓘ |
| country | Earth NERFINISHED ⓘ |
| disputedBy | some geologists ⓘ |
| evidenceType |
geochronological data
ⓘ
paleomagnetic data ⓘ stratigraphic correlation ⓘ structural geology ⓘ |
| followedBy |
Kenorland supercontinent
NERFINISHED
ⓘ
Superia supercraton NERFINISHED ⓘ |
| formedFrom |
Kaapvaal craton
NERFINISHED
ⓘ
Pilbara craton NERFINISHED ⓘ |
| hasAge | more than 3.0 billion years ⓘ |
| hasMaximumAge | about 2.7 billion years ⓘ |
| hasMinimumAge | about 3.6 billion years ⓘ |
| hasRockRecord |
banded iron formations
ⓘ
greenstone belts ⓘ komatiites ⓘ |
| hasSignificance |
constrains models of early Earth thermal evolution
ⓘ
represents one of Earth’s earliest large continental assemblies ⓘ |
| hasUncertainty |
exact configuration of cratons
ⓘ
exact time of assembly ⓘ exact time of breakup ⓘ |
| locatedInPeriod |
Archean eon
NERFINISHED
ⓘ
Mesoarchean era ⓘ Paleoarchean era NERFINISHED ⓘ |
| namedAfter |
Kaapvaal craton
NERFINISHED
ⓘ
Pilbara craton NERFINISHED ⓘ |
| nameEtymology | portmanteau of Kaapvaal and Pilbara ⓘ |
| partOf | early Earth tectonic history ⓘ |
| possibleLocation |
present-day Western Australia
ⓘ
present-day southern Africa ⓘ |
| precededBy | Hadean proto-continents NERFINISHED ⓘ |
| researchField |
Precambrian geology
ⓘ
paleomagnetism ⓘ tectonics of early Earth ⓘ |
| status | proposed ⓘ |
| supportedBy | paleomagnetic reconstructions of Kaapvaal and Pilbara ⓘ |
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: Vaalbara supercraton Description of subject: Vaalbara supercraton is a proposed early Archean supercontinent thought to have formed from some of Earth’s oldest cratons, including the Kaapvaal and Pilbara cratons.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Pilbara–Kaapvaal supercraton (hypothesized)