Pressure-temperature evolution during two granulite-facies metamorphic events (2.62 and 2.02 Ga) in rocks from the Central Zone of the Limpopo Belt, South Africa

2018 ◽  
Vol 310 ◽  
pp. 471-506 ◽  
Author(s):  
Sönke Brandt ◽  
Reiner Klemd ◽  
Qiuli Li ◽  
Alfred Kröner ◽  
Günther Brandl ◽  
...  
2005 ◽  
Vol 142 (3) ◽  
pp. 229-240 ◽  
Author(s):  
ARMIN ZEH ◽  
REINER KLEMD ◽  
JAY M. BARTON

In this study we present new petrological results from the Endora Klippe in the Central Zone of the Limpopo Belt, which may result from horizontal tectonics during the Proterozoic at c. 2.0Ga. Microstructures, assemblages and garnet zonation patterns observed in metapelitic rocks provide evidence that the Endora Klippe rocks underwent a contemporaneous pressure–temperature increase from c. 600°C/5kbar to 650°C/6.5kbar. This is inferred by the use of conventional geothermobarometry and interpretations based on quantitative phase diagrams in the system MnO–(TiO2)–(CaO)–(Na2O)–K2O–MgO–Al2O3–SiO2–H2O. Thus, the petrological results indicate that this part of the Central Zone only underwent a medium-grade metamorphic overprint during a single orogenic event and was never affected by granulite-facies metamorphism, as reported from other parts of the Limpopo Belt. The inferred P–T path, in combination with previous structural and petrological results, leads to the conclusion that the area surrounding the Endora Klippe forms the roof zone of the c. 2.0Ga old granulite-facies rocks forming wide parts of the Limpopo Central Zone.


2018 ◽  
Vol 147 ◽  
pp. 68-77
Author(s):  
Tapabrato Sarkar ◽  
Elena O. Dubinina ◽  
Chris Harris ◽  
Wolfgang D. Maier ◽  
Hassina Mouri

2001 ◽  
Vol 112 (1-2) ◽  
pp. 51-86 ◽  
Author(s):  
Valérie Chavagnac ◽  
Jan D Kramers ◽  
Thomas F Nägler ◽  
Lorenz Holzer

2018 ◽  
Vol 310 ◽  
pp. 320-347 ◽  
Author(s):  
Alfred Kröner ◽  
Günther Brandl ◽  
Sönke Brandt ◽  
Reiner Klemd ◽  
Hangqiang Xie

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