Its depth rapidly increases.
Honestly, just yesterday I fully realized THAT generally people are ready to do for gold.
Well, someone who sometimes kills for money. Steal, Rob, wring out… It’s all after.
Let’s see WHAT man is doing to dig it out of the ground!
Hard to believe that people dig up in the ground giant hole to get, think about it, 7 grams of gold per tonne of ore!!!
7 grams per ton of material excavated from the earth rocks!
Now think about it, the depth of this world’s largest gold mine 570 meters, measures 3.5 by 1.5 kilometers and each year is mined 28 (!!!) tons of gold! Remember, 7 grams of gold per tonne of ore. Consider how many rocks are removed per year in this mine.
It’s called the Super Pit and located in the Australian city Kalgurli. It was here, in 1893, began the Australian gold rush, when in these places have discovered the rich Deposit of gold
2. When the author prepared the text for this post, I googled in the Internet about mine Superpit and found a few posts in 2010 and 2014.
You know what’s fun? In 2010, the depth of the mine was stated 360 meters. For 6 years it has become deeper by 40%! And his plan to deepen and deepen.
Now look closely in the picture to the bottom of the mine. See the point?
3. It is a technique working at the bottom of the mine.
These machines are drilled in the rock to lay explosives.
4. Generally, deposits in Kalgoorlie is unique in the world.
What I do not know. So they say. Who knows, here’s a little copy-paste.
The ore field mine is located on a plot of dip sinklinali Kalgoorlie, complicated longitudinal fracture Golden Mile and the eponymous sill dolerites. Zone auriferous sulphide impregnation occur in verhneuralsky the thickness of the volcanics of basic composition and interbedded shale. The field, known CA. 300 steeply dipping ore bodies with a capacity of from 0.6 to 24 m. controlled by the cracks across multiple systems. The largest area — the Golden Mile (approximately 5 km2).
The main ore minerals: pyrite, tellurides of gold; secondary — chalcopyrite, Galena, sphalerite and to a lesser extent other sulfides; nonmetallic — quartz, calcite, albite, and sericite. Gold is present as submicroscopic inclusions (0,5-20 µm.) in pyrite, 15-20% is represented by tellurides and part of a free native. To a depth of approx. 60 m. the ore is oxidized.
5. Download already the blasted rock to the huge trucks. It is in the picture it seems that they are not so great.
Now I’ll show you something for comparison.
6. This is the excavator that loads trucks with rock. Well, you understand, right…?
7. In the early years gold was extracted here in an open way, simply sifting the breed. Then, when the surface was already almost nothing, started to go into the land and build the mine (the famous mine “Fimiston” and “Charlotte”). Mines was accepted the development system with caving of ore and laying-out space. The average gold content in the ore was 7-9 grams per tonne. Annually removed about 5 tons of metal!!! In General, since the discovery of gold in Kalgoorlie has produced about 100 million tons of ore with an average gold content of 10-12 g/t, from which obtained more 1100 tons of gold.
The maximum annual gold production of 33 tons of accounts for the period up to 1917. In subsequent years, production has decreased due to a decrease in the thickness of the ore bodies with depth and a decrease in the gold grade: from 35.3 grams per ton in 1903 to 7.7 grams per ton in 1962.
8. Superpit owned Newmont mining and Barrick gold where the company employs 550 people directly in mining and an equal number as professionals serving the transportation system
9. Gold production at the mine Super pit is not only the largest but also one of the most complex in Australia. The fact is that the precious metal in the processed rock contains in the form of a telluride. This mineral cannot be processed the usual way of cleaning – cyanidation, so the multi-step processing and refining of the gold from the impurities spent a lot of money and effort
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15. On the edge of mine for many years, there are special observation deck, which is annually visited by about 150 thousand tourists!
I respect people who just manage to make a landmark, attracting tourists.
And Kalgoorlie, for a moment, is in quite a remote ass in Western Australia…. But people go and fly three nine lands, in the heat and dust!
16. And it looks like the tip of mine from the city. You can see how the millions of tons of rocks formed a giant mound around the perimeter of Superpet.
So… For the gold man and the mountain collapses, and the earth picks, sparing no effort and means…
