Происхождение
- Country:
- Canada
- Published:
- 1975
- Oldest age Ma:
- 1804
- Paragenetic modes:
- Abiotic, Biotic, Primary, Secondary, Stage 4a: Earth's earliest continental crust, PM21 - Chemical precipitation, Stage 7: Great Oxidation Event, PM47 - Low-T subaerial oxidative hydration/weathering