Gold Minerals Council South Africa
The vast majority of orogenic gold (excluding Witwatersrand, South Africa) is from three periods in geologic time the Neoarchean (ca. 2700 2400 Ma), a second period in the Paleoproterozoic (ca. 2100 1800 Ma), and a third period from ca. 650 Ma continuing throughout the Phanerozoic (Goldfarb et al., 2001).Two explanations have been offered for this timing (1) because orogenic gold deposit.Of the worlds known mineral reserves of gold ore, 50 percent is found in South Africa, and most of the rest is divided among Russia, Canada, Australia, Brazil, and the United States. The largest single gold ore body in the world is in the Witwatersrand of South Africa. Gold processing. key people.