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What is the most expensive mining?
underground mining
Why is open mining cheaper than deep mining?
it is cheaper because for deep mining ,the more deeper the minerals lies, the more difficult it is to discover and the more expensive to mine
What are the advantages and the disadvantages of Paris market?
very expensive very expensive
Why we're stock companies necessary?
Exploration was very expensive.
Is open mining or closed mining more expensive?
Open-pit mining is generally less expensive in terms of exploration, development, equipment and operation. Typically, when a recovery operation is developed as an open-pit mine, the valuable mineral deposit is closer to the surface. Also, because it is open-pit, the scale of economy applies, meaning that larger equipment can be used, thus lowering the per-unit cost of operation. In addition, while underground mines must leave behind some of the target minerals in order to provide support for the mine structure, open-pit mines do not. It should be noted that while open-pit mining is generally the less expensive mining method. that will not always the case. This is due the geology. The nature of the ore body, and the depth and angle of the deposit will enter into cost considerations when choosing a mining method. It can also depend on the rehabilitation requirements as with open pit mining you are left with huge holes in the ground and with under ground/closed mining you simply have a small entry to close with mining is finished.
What is the most expensive mining?
underground mining
What are the benefits of cast mining compared to underground mining?
Underground mining is very expensive, and "room and pillar" methods only permit removal of a portion of what is being mined- something had to hold up the roof.
Why is copper so expensive?
The law of supply and demand dictates that the more scarce a commodity is, the more valuable it is. Therefore, precious metals like gold, silver, and copper are very expensive. Additionally, mining of metals has a huge overhead cost in mining machinery, territory rights, and in paying workers enough to compensate for how dangerous the job is. That is to say, mining companies charge a lot for their products because it is expensive just to obtain them.
What are the disadvantages Underground mining?
Underground mining is very expensive to conduct. It requires management of a fresh air supply, along with drainage. Underground mining can only remove a portion of the mineral present (the rest is holding up the roof). You could get trapped and die.
What are the disadvantages of underground mining?
Underground mining is very expensive to conduct. It requires management of a fresh air supply, along with drainage. Underground mining can only remove a portion of the mineral present (the rest is holding up the roof). You could get trapped and die.
Why was mercury used in gold mining?
It was used as a means of separating gold from the rock. It did not work very well, it was expensive and very dangerous from a chemical hazard standpoint, and is no longer used.
What are some negative things about mining?
It is expensive to perform, it is very hard work, and it is dangerous work. On the positive side, it provides minerals, metals, and energy that would otherwise not be available. Remember, prior to mining was known as the Stone Age.
Why is open mining cheaper than deep mining?
it is cheaper because for deep mining ,the more deeper the minerals lies, the more difficult it is to discover and the more expensive to mine
Are Mining and Engineering highly paid professions in World of Warcraft?
Engineering is not really a profession that alot of money can be made on. Currently the only thing worth selling is the 'cycle ground mounts, and they are expensive. Very expensive. Mining is always a good money maker because at least 3 other professions depend on it (blacksmithing, engineering, and jewelcrafting).
Is mining an expensive job?
Salary wise, mining can pay poorly, or it can pay very well. You might get a dollar a day at a mine in India, but you might make over $100,000 a year at a big diamond or gold mine in the far north of Canada, where high wages must be paid to attract qualified workers and make up for appallingly tough working conditions. If you're asking whether mining itself is expensive, that's also highly variable. A small mine can be started by one man with a drill and a case of dynamite. The current average cost of starting a serious mine these days, however, is around a billion dollars. So, to sum up, mining can pay well, and can be very expensive indeed.
What is the difference of surface mining and subsurface mining?
Surface mining is safer and easier than subsurface mining.Surface mining does more damage to the environment than subsurface.Surface mining creates more of a mess then subsurface or open cut mining.ON TH OTHER HAND-Subsurface mining is very dangerous.Subsurface mining allows you to retreive minerals from underground.Subsurface mining requires you to go underground, where you will have very little air.
Is college expensive?
It's very, very expensive
