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underground mining
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∙ 10y ago
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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 most expensive nuts in the world?
Macadamia nuts are the most 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.
How much is the most expensive thing in the world?
life is the most expensive thing
Does copper mining affect the economy?
Since copper is in demand and is an expensive resource, it can make a good basis for an economy if the government uses it wisely.
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 type of mining is involved in mining iron?
Strip mining is the most effective way?
What is the most expensive opal ever recorded?
Coober Pedy, in the South Australian outback, is the world's largest opal mining area.
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.
What mining material harms the environment the most?
The mining and burning of coal is the most damaging to the environment.
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.
Which is a drawback to the use of oil shale to produce energy?
Processing, mining, and waste disposal is expensive.
What is the most valuable part of Mexico's mining industry?
silver is the most valuable part of Mexico's mining industry.
Mining methods for detrital and residual clay?
Strip mining is the most common method.
After the initial boom in gold mining towns what happened to most mining operations?
Large mining companies bought out small miners.
What is the most important industry?
mining
What state has the most metal mining service companies?
Geographically speaking, the state of Nevada has the most companies engaged in mining services.
