Saharan Metacraton
E468221
The Saharan Metacraton is a large, ancient crustal block in North-Central Africa that was tectonically reworked during Neoproterozoic events and now underlies much of the Sahara Desert.
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Precambrian crustal block
ⓘ
geological province ⓘ metacraton ⓘ |
| affectedBy |
Neoproterozoic tectonothermal events
ⓘ
Pan-African orogeny NERFINISHED ⓘ |
| associatedWith |
Neoproterozoic rifting and suturing events
ⓘ
assembly of Gondwana ⓘ |
| boundedBy |
Arabian–Nubian Shield
NERFINISHED
ⓘ
Congo Craton NERFINISHED ⓘ West African Craton NERFINISHED ⓘ |
| characterizedBy |
granitoid intrusions
ⓘ
high-grade metamorphic rocks ⓘ reactivated cratonic blocks ⓘ shear zones ⓘ tectonic reworking ⓘ |
| continent | Africa ⓘ |
| distinguishedFrom | stable cratons such as the West African Craton ⓘ |
| formedBy | amalgamation of older cratonic fragments ⓘ |
| geologicalAge |
Archean to Paleoproterozoic core
ⓘ
Precambrian NERFINISHED ⓘ |
| hasUncertain |
exact boundaries
ⓘ
internal subdivision ⓘ |
| lithologyIncludes |
gneisses
ⓘ
granites ⓘ granulites ⓘ migmatites ⓘ volcanic rocks ⓘ |
| locatedIn | North-Central Africa NERFINISHED ⓘ |
| nameCoinedFor | reworked cratonic domain beneath the Sahara ⓘ |
| overlainBy |
Phanerozoic sedimentary basins
ⓘ
Saharan sedimentary cover ⓘ |
| overprintedBy |
Pan-African deformation
ⓘ
Pan-African magmatism ⓘ Pan-African metamorphism NERFINISHED ⓘ |
| partOf | North African Shield in a broad sense NERFINISHED ⓘ |
| researchTopicIn |
Pan-African orogenic evolution
ⓘ
Precambrian tectonics ⓘ intraplate reactivation ⓘ |
| reworkedDuring | Neoproterozoic ⓘ |
| tectonicSetting | intraplate domain between major cratons and orogenic belts ⓘ |
| underlies |
Sahara Desert
NERFINISHED
ⓘ
parts of Algeria ⓘ parts of Chad ⓘ parts of Egypt ⓘ parts of Libya ⓘ parts of Niger ⓘ parts of Sudan ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.