The results of this survey are shown on an excellent map (Geological Map of the Witwatersrand Gold Field ... is at least approximately known. The Transvaal system includes the quartzites to ...

In 1923, prospectors discovered platinum in the Transvaal and organized the Transvaal Platinum, Ltd. to exploit their discovery. Capital was raised, ore was extracted and tested. A first-class ...

THE discovery of gold on the Witwatersrand was made in the year 1885. The growth of the field was at first slow. Some of the earliest workers believed that the auriferous gravel, exposed in ...