In the article below, gold expert Neil Phillips looks at the origins, growth & decline of the greatest goldfield on earth. He also hints at hopes of new discoveries. The article was first published in the The Australian Geologist, issue 200, page 21.
One quarter of the World’s gold has been mined from the Witwatersrand goldfields around Johannesburg in South Africa. At its peak in 1970, gold was the mainstay of the South African economy, the dominant export, and source of employment for 500,000 underground miners every day. Anecdotally, those miners supported an average of ten others in extended families in South Africa and surrounding countries. Unfortunately, the last fifty years have been one of constant decline in annual Witwatersrand gold production to now be under 10 percent of its peak.
History of Witwatersrand Basin gold production rate (Christopher J. H. Hartnady)
Much has been written about the discovery of the Witwatersrand and its national and global impact. The discovery itself was early in 1886 by George Harrison, and likely in February of that year. In mid-1886 just months after his discovery, Harrison described himself to the State Secretary as having long experience as an Australian gold digger and added his opinion...