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 |
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 ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Proto-Africa