Amazonian craton
E791164
The Amazonian craton is an ancient, stable block of continental crust in South America that forms a major part of the geological core of the Amazon region.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Amazonian Craton | 2 |
| Amazonia craton | 1 |
| Amazonian craton canonical | 1 |
| Amazonian craton basement | 1 |
| Guiana Shield craton | 1 |
| South American Precambrian core | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9231212 — 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: Amazonian craton Context triple: [Amazonia, alsoKnownAs, Amazonian craton]
-
A.
Rio de la Plata Craton
The Rio de la Plata Craton is an ancient Precambrian continental crust block in South America that forms part of the geological core of the continent.
-
B.
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.
-
C.
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.
-
D.
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.
-
E.
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.
- 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: Amazonian craton Target entity description: The Amazonian craton is an ancient, stable block of continental crust in South America that forms a major part of the geological core of the Amazon region.
-
A.
Rio de la Plata Craton
The Rio de la Plata Craton is an ancient Precambrian continental crust block in South America that forms part of the geological core of the continent.
-
B.
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.
-
C.
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.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf | craton ⓘ |
| borderedBy |
Andean orogenic belt
ⓘ
linked to:
Andean orogeny
Araguaia Belt ⓘ Paraguay Belt ⓘ Ribeira Belt ⓘ |
| characterizedBy |
old crystalline basement rocks
ⓘ
tectonic stability ⓘ |
| composedOf |
gneisses
ⓘ
granitoid rocks ⓘ metamorphic rocks ⓘ |
| containsRocksFrom |
Mesoproterozoic
ⓘ
Neoproterozoic ⓘ
linked to:
Neoproterozoic Era
Paleoproterozoic ⓘ |
| continent | South America ⓘ |
| country | Brazil ⓘ |
| extendsInto |
Bolivia
ⓘ
Colombia ⓘ French Guiana ⓘ Guyana ⓘ Suriname ⓘ Venezuela ⓘ |
| formsPartOf | geological core of the Amazon region ⓘ |
| geologicalAge | Precambrian ⓘ |
| hasBeenLinkedTo |
supercontinent Columbia
ⓘ
linked to:
supercontinent Columbia (Nuna)
supercontinent Gondwana ⓘ
linked to:
Gondwana
supercontinent Rodinia ⓘ |
| hasEconomicResources |
base metal deposits
ⓘ
bauxite deposits ⓘ gold deposits ⓘ iron ore deposits ⓘ manganese deposits ⓘ |
| hasSubunit |
Central Brazil Shield
ⓘ
linked to:
Brazilian Shield
Guaporé Shield ⓘ Guiana Shield ⓘ |
| importantFor | reconstruction of Precambrian supercontinents ⓘ |
| isMajorComponentOf | South American cratonic framework ⓘ |
| knownFor |
extensive greenstone belts in some areas
ⓘ
large Precambrian magmatic provinces ⓘ |
| locatedIn |
Amazon Basin
ⓘ
northern South America ⓘ |
| namedAfter | Amazon region ⓘ |
| partOf | South American Plate ⓘ |
| researchField |
Precambrian geology
ⓘ
geochronology ⓘ tectonics ⓘ |
| underlainBy | thick continental lithosphere ⓘ |
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: Amazonian craton Description of subject: The Amazonian craton is an ancient, stable block of continental crust in South America that forms a major part of the geological core of the Amazon region.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Amazonian craton
linked to: Amazonian craton
linked to: Amazonian craton
linked to: Amazonian craton
linked to: Amazonian craton
linked to: Amazonian craton