São Francisco craton
E794188
The São Francisco craton is an ancient, stable block of continental crust in eastern Brazil that forms a major geological core of South America.
All labels observed (2)
| Label | Occurrences |
|---|---|
| São Francisco Craton | 1 |
| São Francisco craton canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9231217 — 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: São Francisco craton Context triple: [Amazonia, borderedBy, São Francisco craton]
-
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.
Amazonian craton
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.
-
C.
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.
-
D.
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.
-
E.
Vaalbara supercraton
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.
- 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: São Francisco craton Target entity description: The São Francisco craton is an ancient, stable block of continental crust in eastern Brazil that forms a major geological core of South America.
-
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.
Amazonian craton
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.
-
C.
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.
-
D.
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.
-
E.
Vaalbara supercraton
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.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
craton
ⓘ
geological province ⓘ |
| adjacentTo |
Congo craton
ⓘ
linked to:
Congo Craton
|
| affectedBy | Neoproterozoic Brasiliano orogeny at its margins ⓘ |
| ageCategory | Precambrian craton ⓘ |
| borders |
Araguaia belt
ⓘ
linked to:
Araguaia Belt
Araçuaí orogen ⓘ
linked to:
Araçuaí Belt
Brasília belt ⓘ
linked to:
Brasília Belt
Ribeira belt ⓘ
linked to:
Ribeira Belt
|
| characterizedAs | ancient stable block of continental crust ⓘ |
| contains |
Archean granite–greenstone terranes
ⓘ
Paleoproterozoic sedimentary sequences ⓘ base‑metal mineralization ⓘ gold deposits ⓘ high‑grade gneiss complexes ⓘ iron ore deposits ⓘ iron‑formation–bearing sequences ⓘ manganese deposits ⓘ |
| continent | South America ⓘ |
| country | Brazil ⓘ |
| coveredBy | Phanerozoic sedimentary basins ⓘ |
| exposedIn |
Bahia
ⓘ
Goiás ⓘ Minas Gerais ⓘ northern Minas Gerais–southern Bahia region ⓘ |
| formedBy | Archean crustal growth and Paleoproterozoic accretion ⓘ |
| forms | geological core of eastern South America ⓘ |
| geologicalAge | Archean to Paleoproterozoic ⓘ |
| hosts | São Francisco River basin basement ⓘ |
| linkedHistoricallyTo |
São Francisco–Congo paleocontinent
ⓘ
linked to:
West Gondwana (paleocontinent)
|
| lithology |
gneiss
ⓘ
granite ⓘ greenstone ⓘ metasedimentary rocks ⓘ |
| locatedIn | eastern Brazil ⓘ |
| oldestRocksAge | >2.5 Ga ⓘ |
| overlainBy | Neoproterozoic cover sequences ⓘ |
| partOf |
South American Platform
ⓘ
linked to:
Rio de la Plata Craton
South American lithosphere ⓘ |
| researchField | Precambrian geology ⓘ |
| roleIn | assembly of West Gondwana ⓘ |
| separatedFrom | Congo craton by the South Atlantic Ocean ⓘ |
| significance |
important for understanding South American tectonic evolution
ⓘ
key area for studying craton stabilization ⓘ |
| stability | tectonically stable ⓘ |
| tectonicSetting | intraplate ⓘ |
| underlies |
São Francisco Basin
ⓘ
part of the Paraná Basin margin ⓘ |
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: São Francisco craton Description of subject: The São Francisco craton is an ancient, stable block of continental crust in eastern Brazil that forms a major geological core of South America.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: São Francisco craton