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Rand Gold Mine In South Africa Is The Largest Gold Mine In The World. The Rand Gold Deposit In South Africa Was Discovered In 1866. It Has Been More Than 130 Years. It Has Produced 35000 Tons Of Gold, And Now Has 18000 Tons Of Reserves, Totaling 53000 Tons. The Existing Reserves Still Account For 52% Of The Total Gold Reserves In The World.
The Annual Output Of Gold Reached 1000 Tons In 1970, The Highest In History. Since Then, The Annual Output Has Been Between 650-700 Tons, Accounting For Half Of The World's Gold Production. Therefore, The Reserves And Output Of The Mine Rank First In The World, And It Is The Largest Gold Mine In The World. The High Grade Of Gold In The Mine Is Also Rare In The World, And The Mining Rate Is Still 7-20g / T, With An Average Of 10G / T.
The Rand Basin Is 400 Kilometers Long From North To South. Gold Bearing Gravels Are Distributed In The Surrounding Areas Of The Basin. The Total Length Of The Gold Belt Is 480 Km, The Ore Bearing Area Is 20700 Square Kilometers, And The Largest Main Ore Belt Is 190 Km Long. The Thickness Of Ore Bearing Bed Is More Than 100 Meters, With More Than 200 Ore Bearing Beds And 10 Main Ore Bearing Beds. At Present, The Mining Depth Has Reached 3600m, The Gold Content Has Little Change And Is Relatively Stable. The Mining Length Along The Strike Is 70km, And The Mining Depth Along The Inclined Direction Is 8km.

More Than 130 Mines Have Been Built In Rand Gold Mine Area Of South Africa, Of Which 38 Are Still In Production, Including 9 Mines With An Annual Output Of 3 Million Tons Of Ore And 21 Mines With An Annual Output Of 1-3 Million Tons Of Ore. Other Mines Are Smaller In Scale, With An Average Annual Output Of 20-30 Tons Of Gold.