Abstract
Ophiolite-belt basite-hyperbasite intrusions participate in gold mineralization during autometasomatism and superimposed hydrothermal metasomatism related to the emplacement of gabbro-plagiogranite intrusions. These processes led to extraction of gold from the basite-hyperbasites and the enclosing carbonaceous shales and to saturation of the mineralizaing hydrothermal solutions. The early alkaline hydrothermal solutions redistributed and extracted up to 20-40% of the metal, while the late ones led to its accumulation in the surrounding sulfidized listvenite-beresites, with influx into the zone of metasomatism: KAu≥90-296. Greenstone metamorphism of the magmatites had essentialy no effect on the gold redistribution and accumulation: KAu 1.0-0.9. -Journal summary
| Original language | English |
|---|---|
| Pages (from-to) | 16-27 |
| Number of pages | 12 |
| Journal | Geochemistry International |
| Volume | 29 |
| Issue number | 9 |
| Publication status | Published - 1992 |
ASJC Scopus subject areas
- Geochemistry and Petrology
- Geophysics