[SMP37-P02] Detrital zircon geochronology of the Limpopo Complex, southern Africa: Implications for Neoarchean to Paleoproterozoic collisional events
Keywords:Limpopo Complex, detrital zircon geochronology, metamorphism, Magondi Belt
In contrast, detrital zircon ages of the Phikwe and Motloutse Complexes in Botswana are significantly younger (2.9-2.4 Ga), suggesting that the quartzites from the complexes deposited after 2.4 Ga. Therefore, although Beit Bridge, Phikwe, and Motloutse Complexes are correlated based on the occurrence of similar supracrustal lithologies, the quartzites in the Botswanan side of the Central Zone might have formed after the Neoarchean “Limpopo Orogeny”. The timings of protolith formation and high-grade metamorphism in the Phikwe and Motloutse Complexes could be related to the Magondi Orogeny that affected the western part of the Zimbabwe Craton at ca. 2.0 Ga.
Tsunogae, T. and van Reenen, D.D. (2011) High-pressure and ultrahigh-temperature granulite-facies metamorphism of Precambrian high-grade terranes: Case study of the Limpopo Complex. Geological Society of America Memoir, 207, 107-124.