Происхождение
- Country:
- United Kingdom
- Published:
- 1944
- Oldest age Ma:
- 2500
- Paragenetic modes:
- Abiotic, Primary, Secondary, Stage 4a: Earth's earliest continental crust, PM23 - Subaerial alteration, PM32 - Ba-Mn-Pb-Zn metamorphics, Stage 4b: Highly evolved igneous rocks, PM35 - Ultra-alkali and agpaitic igneous rocks, PM36 - Carbonatites & kimberlites