Происхождение
- Country:
- South Africa
- Published:
- 1925
- Oldest age Ma:
- 2400
- Paragenetic modes:
- Abiotic, Biotic, Secondary, Stage 4a: Earth's earliest continental crust, PM31 - Contact metamorphism, Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere, PM51 - Pyrometamorphic minerals