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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
1. A mineral can be formed through evaporating salt water which is when salt water evaporates. you can do this at home with a bottle and mix salt and water together and see what happens when it dries up. Examples: Gypsum and Halite
2. A mineral can also be formed through hot water solutions which is when ground water works its way down and is boiled by ground magma. Examples are Gold, copper sulfur pyrite and galena.
What are Facts about iron ore?
To get to the bits of iron in the ore, you have to smelt it out. Smelting involves heating up ore until the metal becomes spongy and the chemical compounds in the ore begin to break down. Most important, it releases oxygen from the iron ore, which makes up a high percentage of common iron ores.
bauxite is mined. it is then melted and aluminum is extracted by high temperature electrolysis of the molten bauxite.
What caused the ok tedi copper mine disaster?
corporate irresponsibility of ignoring environment consideration for profit.
What is a way to make mining safer for the emploees?
By seeing that miners have the proper equipment, and that they are properly trained to maintain and use it safely. All US mines are required to conduct training of new miners, and periodic refresher training for all miners.
How does a vibrating screen work?
Vibrating screen moves round. It has multi-layers and is of high efficiency. The eccentric shaft vibration exciter and partial block help to adjust amplitude. The material drops down along the long line.
How many diamond mining countries are there?
The principal countries would include Australia, Brazil, Congo, South Africa, Russia, Canada, and India. Probably China as well?
Even in the US there is a 'Diamond National Park(?)' in Arkansas.
Children shouldn't work in a coal mine?
No, they should not. In most of the world, it is against the law. Mining- especially coal mining, can be an extremely dangerous job.
What is the effect of mining to a people?
Mining provides raw materials and energy that would not otherwise be available to a people. Remember, if it was not grown, someone dug it out of the earth. For example- a cell phone contains 34 different substances that were obtained by mining them. All metals- steel, aluminum, copper, gold, silver, and uranium- come from mining. Remember that prior to mining, humans were pretty much at the cave-man era of life- chipping rocks to make spear points.
Mining CAN cause damage to the environment if done improperly, but that can be controlled. Mining is also a major source of wealth to an economy, not only to the owner of the mineral that sells it, but to the persons paid to mine and process the mineral, and the persons that use the mineral.
In coal mining what is a good strip ratio?
1. Overburden O/B
2. Coal / ore
3. Interburden (or parting), I/B
4. Waste
Sometimes:
Waste = O/B + I/B
(look at the context)
Waste (O/B + I/B) needs to be removed to get access to coal / ore
What Is Stripping Ratio ?
a. Measures relative deposit depth
Q: How important is depth in surface mining?
* Consider Chuquicamata at 850 m depth, SR = 0.5
* Consider Capital Quarries , Rolla, at 25 m depth, SR = 0.5
b. To surface mine we need to remove some waste in addition to ore / coal
c. SR measures how much waste needs to be removed so that a unit of ore/coal can be mined
* This means "relative depth"
source : coal-mining-info.co.cc
its bad because if they take all the coal they could not reproduce it again (nonrenewable resource), it affects water, air and ecology.
What is din2391 st37.4 nbk tube Which company could supply the top quality?
The tubes din2391 st37.4 nbk tube means the hydraulic tubes. There are 3 factories who produce the top quality tubes in the world. BENTELER，Mannesmann in Germany Tianyang in Shanghai.
Personally ,I purchased the tubes from Shanghai Tianyang steel tube Co.,ltd. The Tianyang brand id the official top brand and they have the stock in warehouse. Our company is the end user for mining machinery, so we need the delivery time should be very short and our quantity is small. All of these Tianyang tubes could meet our request.
Reference : http://en.steeltube-cn.com
How does agriculture oil mining farming electronics and movie making benefit others?
Industries such as agriculture ,oil,mining,farming electronics and movie making helps people with finances,food,entertainment etc.
Why do you need a gold mining license?
So the govt get more money from u ie fishing licence hunting licence
How much metal could you extract from 1000g of an ore containing 1 percent metal?
You would be able to extract 10g of metal from 1000g of an ore containing 1 percent metal. This is calculated by taking 1 percent of 1000g.
What equipment are used in mining?
There are many equipments that are used for mining. These are crusher equipments, screening equipment, rock crushers and conveying equipments. I found a company which supplies Anaconda and Sandvik equipments. Just visit the website http://unitedscreeningandcrushing.com/ for more information.
he was recognised for devoting his professional life to the advancement of Geological Sciences. He developed policies concerning sea bed mining and was the Director of the Institite of Geological Sciences
Yes it is a mineral. SiO2 in composition. Commonly it can be coloured by trace elements such as iron.
