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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
When was the self rescuer for coal mining invented?
It was invented by a German submariner in the 1940's and was intended to be used aboard submarines in the event of a fire producing a high content of CO, it was not introduced into coal mining in Britain until the 1960's and had it been introduced sooner would no doubt have saved lives. Hopcalite is the chemical constituent that turns CO into CO2 which can be respirated, the average self rescuer will last for approximately an hour, allowing egress from a potentially dangerous mining environment after a fire where a high concentration of CO is present.
Why is mining important to the world?
If it was not GROWN by a farmer, then someone dug it out of the earth. The computer you are using to read this contains 35 different materials that were produced by mining. It is likely powered by electricity that is fueled from mining. All metals come from mining. The period of time prior to mining is called the Stone Age. The difference between you and a caveman squatting next to his fire are the products produced by mining. Look around your home- with the exception of things like paper, wood, and cloth, everything in your home came from a mining operation at some time.
New technology changed mining by?
creating deep-rock mining shafts where working conditions were dangerous and unpleasant
What is the economic importance of Bauxite?
It is the primary source of aluminum metal. It is extremely important economically due to the VERY widespread use of aluminum. It is used in everthing from soda cans to candy wrappers to cars, aircraft, and boats. It is the most common light weight metal in use.
What are the main industries in Idaho?
educational services
Idaho's industries are Agriculture,Manufacturing,and Timber.
I know farming is one .
agriculture, mining, and lumber
Bad effects of mining in Ghana?
the bad effects are that it ravishes the trees and local farmers cocoa plantations anf they are forced to move further away from the mining and even their fresh water supply gets poisoned by the harmful chemical's that are used to get the gold out of the rock.
What mines are located in the US?
Many mines of many kinds, producing many things, are located in the USA.
What can you do with abandoned quarries?
Abandoned quarries are best left to fill up with water, then stocked with fish and enjoyed as a fishing and swimming hole. They can also be used as landfills, or could be naturalized by filling in and seeding.
What makes something valuable?
Being useful, and being scarce. Natural gas, oil, coal, and uranium are all very useful, and considered valuable. Being scarce also makes an item valuable. Silver and platinum look much alike, but platinum is more rare than silver, and much more valuable.
However, diamonds - one of the most valuable items in the world - have very little uses and are as scarce as dirt. Also, back in the 1600s, the tulip was HUGE in The Netherlands. I repeat - the TULIP was HUGE in The Netherlands. The prices of a single bulb raised to around 10 times the annual salary of a skilled craftsman. That is 10 years salary for a single flower. The truth is - the reason things gain value is demand. That's how much people are interested in getting something. It doesn't have to be scarce, it doesn't have to be awesome (i.e. pet rocks & TULIPS), the fact is people are interested in getting it - thus it has a value.
How much does a surface coal miner earn?
It really depends on a few factors... For instance, what state (area) you're in, how much experience you have, what levels of certification you have, and if u work for a big or small company. But In Ky, on average is around 16$ an hour.. Like I said, it can differ a few dollars.
Saphire Mining is the removal of the precious jewel Saphire from the ground through the proccess of digging it up.
Which type of mine would be used to remove ore deposits?
Usually a shaft mine would be used, unless the ore deposits were in a "vein", then a open-pit mine would be used.
Everything has its limit iron ore cannot be educated into gold?
That's not really a question, and it doesn't actually relate to mining, but it's a quote by Mark Twain. It means that every person has their intellectual limit; you can give someone the greatest education, but it will only benefit them as much as their innate abilities allow.
How do miners choose which type of mining to use?
It depends on the mineral that you are seeking and the equipment that you can afford. Is there water nearby or are you prospecting in a desert environment.? The laws of a given area that you are working in also come into play. For example, many ststes limit the dredge nozzle size that you can use in most rivers or close the river to dredging altogether. All these factors come into play while prospecting/mining.
What is the industrial use of the mineral olivine?
A worldwide search is on for cheap processes to sequester CO2 by mineral reactions. Removal by reactions with olivine is an attractive option, because it is widely available and reacts easily with the (acid) CO2 from the atmosphere. When olivine is crushed, it weathers completely within a few years, depending on the grain size. All the CO2 that is produced by burning 1 liter of oil can be sequestered by less than 1 liter of olivine. The reaction is exothermic but slow. In order to recover the heat produced by the reaction to produce electricity, a large volume of olivine must be thermally well isolated. The end-products of the reaction are silicon dioxide, magnesium carbonate and small amounts of iron oxide.The aluminum foundry industry uses olivine sand to cast objects in aluminum.
