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 (3)

How this entity was disambiguated

Statements (48)

Predicate Object
instanceOf craton
geological formation
age Archean
boundedBy Karagwe–Ankolean Belt
Mozambique Belt
linked to: Mozambique belt

Ubendian Belt
Usagaran Belt
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)
Uganda (subsurface)
geologicalProvince East African Craton system
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)
Kavirondian Supergroup
Lake Victoria goldfields
Nyanzian greenstone belts
lithosphericThickness >150 km (approximate)
locatedIn East Africa
Tanzania
minimumAge >2.5 billion years
notableFeature one of the major Archean cratons of Africa
overlainBy Neoproterozoic mobile belts
Phanerozoic sedimentary basins
partOf African Plate
African continent
linked to: Africa

East African Orogenic System
linked to: Pan-African orogeny

Nubian Plate
linked to: African Plate
researchTopic Archean crustal evolution
Precambrian tectonics of East Africa
stability of cratonic lithosphere
underlies East African Rift System in places
linked to: East African Rift

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Proto-Africa hasComponent Tanzania craton
subject linked to: proto-Africa
Mozambique Belt boundedBy Tanzania Craton
subject linked to: Mozambique belt
linked to: Tanzania craton
Congo Craton hasSubunit Tanzania Craton (sometimes considered adjacent or related block)
linked to: Tanzania craton