The Gold Series: Unearthing The World's Supply (Part 2)
Back to TopThis infographic, part two in our Gold Series, covers the full supply picture behind the yellow metal.
Within the planet’s crust, there is only 1 gram of gold for every 250 tonnes (550,000 lbs) of earth. Gold’s rarity means that finding economic deposits is extremely difficult. To understand how gold mining and supply work, we must first unearth how deposits form.
Over time, gold dissolves in hot water deep in the crust under immense pressure. It is then transported and deposited upwards as the water travels up cracks and fissures towards the surface. Generally, the major deposit types include: placer, volcanogenic massive sulphide (VMS), epithermal, porphyry, carlin-type, and orogenic deposits.