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Mining
Mining for coal is something that is widely known, but did you know that diamonds, uranium, copper, and other non-renewable natural resources are also mined? There are two types of mining; surface and subsurface. Questions about the methods and types of mining, what ores are mined, and related questions should be asked in this category.
4,677 Questions
Why are old mines sometimes reopened What factors may have influenced the reopening of old mines?
mines close when the ore is not producing enough minerals to pay for the expenses of the mine and not making a profit. They reopen if the price of the mineral in the ore goes up enough so that the mine makes a profit. Example: a mine produces $100 of gold per ton back in 1900. But extracting it costs $500 so the mine closes. Now with gold prices today it would be $1900 of gold per ton and an extracting cost of $700. So it reopens.
How is gold mined in Saskatchewan?
It depends on yeah...for example if I have 10 ice cubes and 11 apples how many pancakes can fit on a roof? Purple. Because aliens don't wear hats.
Yes, it is called an extractive economy
How can the effects of mining be minimized?
In several ways. The type of mining may be changed to a form that has a lesser impact on surroundings, and mined land can be reclaimed, restored, or placed into other uses.
What reclamation is done to repair damages caused by strip mining?
The land is contoured to prevent erosion. Topsoil is replaced, and seeded/planted to grow new vegetation. Provision is made for drainage of rainwater. Current mines are required to reclaim mined land, and funds are provided to reclaim older mines.
Why did large mining companies replace individual miners?
so that they could make more money and trade off more things in return forneven vetter things
Do people die quicker that work for the coal mines?
While the safety and health of coal miners has improved greatly, it is still dangerous work, and people may be hurt or killed. While there is some degree of hazard to ANY job, mining still ranks among the most dangerous.
What is emulsion slurry explosive?
It is a jelly type explosive that can be pumped into holes in rock for blasting. It is an emulsion (where two things that don't usually mix are mixed- like oil and water) It consists of an oxidizer and a fuel, mixed into a water base. It is a safe and economical explosive for mining and mass excavations in construction. May also be called a "water gel".
What does uncut diamond look like?
A lot like a slightly greasy piece of glass, really.
If you're asking about the crystal form, it's often octahedral.
Is iron ore used in road construction?
Yes they are. Sir Martin Frobisher discovered iron ore which he thought was gold. This was later used to build many roads
mining which machinery is used. LHD,DRILL RIGS,DUMO TRUCKS...MOBILE MACHINERY FORMS MAJOR PART OF THIS TYPE OF MINING
Why did so many people give up their homes and move to mining towns and homesteads in the west?
Because, they heard of gold findings in the west. When they got there they would pan for gold in rivers, and after a lot of people came to the west the gold quickly ran out and was really hard to find.
Does a cobbler work in a coal mine?
No- a cobbler works with leather (shoemaker) You may be thinking of collier, which IS related to coal mining.
Why is silver mining costs 5.25 dollar per ounce and the market price 27 dollars?
Because the mining cost is not $5 an ounce. Silver is not profitable to mine by itself. It comes up as a secondary product of existing mines for other metals. To mine for silver alone would cost around $50-$100 an ounce. It is only ten times more plentiful than gold. Does it really make sense to you that gold would cost $500-$900 an ounce to mine and silver only $5? The reason we are running out is because all we get is table scraps from mines for other things.
Why is mining called a killer industry?
The impacts of mining on the health of the miners and the environment are: i. The dust and noxious fumes inhaled by miners make them vulnerable to
pulmonary diseases.
ii. The risk of collapsing mine roofs, inundation and fires in coalmines are a
constant threat to miners.
iii. The water sources in the region get contaminated due to mining.
iv. Dumping of waste and slurry leads to degradation of land, soil, and increase in
stream and river pollution.
that is why it is called killer industry
What is the value of a historic Colorado mining 999 pure silver coin?
The value of a historic Colorado mining 999 pure silver coin can vary based on factors such as its condition, rarity, and demand among collectors. You may want to research similar coins that have been sold recently to get an idea of its potential value. It's recommended to consult with a numismatic expert or coin dealer for a more accurate appraisal.
Where is the mining center in the US to mine for diamonds?
There is no mining for diamonds in the United States. Canada, however, does have mining operations. Rio Tinto's headquarters are in Yellowknife, NT.
What are the negative effects of mining nickel?
Mining nickel can lead to habitat destruction, soil and water pollution, and health risks for communities living near the mines. The extraction and processing of nickel can also contribute to greenhouse gas emissions and deforestation, impacting the environment and exacerbating climate change.
Crushed stone or angular rock is a form of construction aggregate, typically produced by mining a suitable rock deposit and breaking the removed rock down to the desired size using crushers. Most crushed stone is used in highway construction and building construction. Mantra Minerals are the leading Crushed stone suppliers in india offering the best quality crushed stones in India.
What type of mining companies are there in Colorado?
there is only two types of mining companies in Colorado.
Gas mining and electricity minings.
