Origin and Evolution of Precambrian High-Grade Gneiss Terranes, with Special Emphasis on the Limpopo Complex of Southern Africa

The geochronology of the Limpopo Complex: A controversy solved
-
Published:February 01, 2011
-
CiteCitation
Jan D. Kramers, Hassina Mouri, 2011. "The geochronology of the Limpopo Complex: A controversy solved", Origin and Evolution of Precambrian High-Grade Gneiss Terranes, with Special Emphasis on the Limpopo Complex of Southern Africa, Dirk D. van Reenen, Jan D. Kramers, Stephen McCourt, Leonid L. Perchuk
Download citation file:
- Share
-
Tools
The results of 50 years of geochronological work in the Limpopo Complex are reviewed. The data define three main age clusters. The oldest, at ca. 3.3 Ga, exists in the Central and Southern Marginal Zones and is defined by magmatic zircon dates. The second, with a genuine spread between 2.7 and 2.55 Ga, occurs in all three zones. It was a period of high-grade regional metamorphism with intense deformation and widespread anatexis, dated also mainly (but not exclusively) by zircon U-Pb. The third cluster is well constrained at 2.02 ± 0.02 Ga in the Central Zone by zircon overgrowths, sparse...
- absolute age
- Africa
- amphibole group
- anatexis
- apatite
- Ar/Ar
- Archean
- chain silicates
- clinoamphibole
- dates
- deformation
- garnet group
- high-grade metamorphism
- hornblende
- Limpopo Belt
- Lu/Hf
- metamorphism
- monazite
- Neoarchean
- nesosilicates
- orthosilicates
- overgrowths
- overprinting
- Paleoproterozoic
- Pb/Pb
- phosphates
- polyphase processes
- Precambrian
- Proterozoic
- regional metamorphism
- shear zones
- silicates
- Sm/Nd
- titanite
- titanite group
- U/Pb
- upper Precambrian
- zircon
- zircon group