Abstract
The Fumani gold mine is situated in the Archaean mafic-ultramafic unit of the Sutherland greenstone belt in South Africa. The ore zone occurs in a metamorphosed and sheared banded iron-formation consisting of layers of garnet + biotite + amphibole alternating with quartz-rich layers. Gold is associated with As-rich arsenopyrite formed at 400-250°C. Mineralization is probably epigenetic, post-peak metamorphism and might have been introduced along shear zones during late retrograde metamorphism or hydrothermal activity. The mineralizing solutions were possibly derived from the dehydration of greenstone successions due to thrusting of high-over low-grade metamorphic rocks during the Limpopo orogeny at approximately 2700-2670 Ma ago. -Authors
| Original language | English |
|---|---|
| Pages (from-to) | 429-438 |
| Number of pages | 10 |
| Journal | South African Journal of Geology |
| Volume | 91 |
| Issue number | 4 |
| Publication status | Published - 1988 |
ASJC Scopus subject areas
- Geology
