Tanzania craton
E801611
The Tanzania craton is an ancient, stable block of continental crust in East Africa that forms part of the geological core of the African continent.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Tanzania craton canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9406751 — 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: Tanzania craton Context triple: [Proto-Africa, hasComponent, Tanzania craton]
-
A.
Zimbabwe Craton
The Zimbabwe Craton is an ancient, stable block of continental crust in southern Africa, renowned for its Archean greenstone belts and rich gold deposits.
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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.
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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.
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.
-
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: Tanzania craton Target entity description: The Tanzania craton is an ancient, stable block of continental crust in East Africa that forms part of the geological core of the African continent.
-
A.
Zimbabwe Craton
The Zimbabwe Craton is an ancient, stable block of continental crust in southern Africa, renowned for its Archean greenstone belts and rich gold deposits.
-
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.
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.
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.
-
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 formation ⓘ |
| age | Archean ⓘ |
| boundedBy |
Karagwe–Ankolean Belt
NERFINISHED
ⓘ
Mozambique Belt NERFINISHED ⓘ Ubendian Belt NERFINISHED ⓘ Usagaran Belt NERFINISHED ⓘ |
| characteristic |
ancient continental crust
ⓘ
high seismic velocity mantle lithosphere ⓘ tectonically stable interior ⓘ thick lithospheric root ⓘ |
| continent | Africa ⓘ |
| crustalThickness | ~35–45 km (approximate) ⓘ |
| economicImportance |
hosts base metal mineralization
ⓘ
hosts diamond-bearing kimberlites ⓘ hosts gold deposits ⓘ hosts nickel deposits ⓘ |
| extendsInto |
Kenya (subsurface)
NERFINISHED
ⓘ
Uganda (subsurface) NERFINISHED ⓘ |
| geologicalProvince | East African Craton system NERFINISHED ⓘ |
| hasLithology |
Archean granite-greenstone terranes
ⓘ
banded iron formations ⓘ high-grade gneisses ⓘ mafic volcanic rocks ⓘ metasedimentary rocks ⓘ tonalite–trondhjemite–granodiorite (TTG) gneisses ⓘ |
| hasProcess |
affected by later Proterozoic reworking at margins
ⓘ
experienced high-grade metamorphism ⓘ experienced multiple Archean magmatic events ⓘ |
| hasSubunit |
Dodoman Belt (internal Archean belt)
NERFINISHED
ⓘ
Kavirondian Supergroup NERFINISHED ⓘ Lake Victoria goldfields NERFINISHED ⓘ Nyanzian greenstone belts NERFINISHED ⓘ |
| lithosphericThickness | >150 km (approximate) ⓘ |
| locatedIn |
East Africa
NERFINISHED
ⓘ
Tanzania NERFINISHED ⓘ |
| minimumAge | >2.5 billion years ⓘ |
| notableFeature | one of the major Archean cratons of Africa ⓘ |
| overlainBy |
Neoproterozoic mobile belts
ⓘ
Phanerozoic sedimentary basins ⓘ |
| partOf |
African Plate
NERFINISHED
ⓘ
African continent NERFINISHED ⓘ East African Orogenic System NERFINISHED ⓘ Nubian Plate NERFINISHED ⓘ |
| researchTopic |
Archean crustal evolution
ⓘ
Precambrian tectonics of East Africa ⓘ stability of cratonic lithosphere ⓘ |
| underlies | East African Rift System in places NERFINISHED ⓘ |
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: Tanzania craton Description of subject: The Tanzania craton is an ancient, stable block of continental crust in East Africa that forms part of the geological core of the African continent.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Proto-Africa