Komatii Formation
The Komatii Formation is a 3.475 billion year old rock formation, named after the nearby Komati River in South Africa. It is the type locality for komatiite, a high temperature, magnesium-rich volcanic rock.[1]
| Komatii Formation Stratigraphic range: Paleoarchean 3300 Ma | |
|---|---|
| Type | Geological formation |
| Unit of | Onverwacht Group Tjakastad Subgroup |
| Underlies | Geluk Subgroup Hooggenoeg Formation |
| Overlies | Theespruit Formation |
| Thickness | 3,500 m (11,500 ft) |
| Lithology | |
| Primary | Komatiite |
| Location | |
| Coordinates | 25.8°S 31.0°E |
| Region | Barberton Greenstone Belt, Mpumalanga |
| Country |  South Africa |
| Extent | Kaapvaal Craton |
| Type section | |
| Named for | Komati River |
 Location of the Barberton Greenstone Belt | |
References
- Greenstone Belt Studies, Department of Geological Sciences, University of Cape Town
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