What are some different parts of a surface plant?

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MINING (book 1)

Unit 1

What are some substances that come from mine?

Many substances come from mines. You can mine for different types of metals. Some of those metals cost a lot. People also mine for stones that are valuable. Another substance that comes from mine is coal.

 

Why is mining so important?

I think that mining is important for a lot of reasons. One reason is that we get coal from mining. I know we use coal for a lot of different things. For example, in a lot of places, they burn coal to produce electricity. Metals produced by mining are used in construction. Even agriculture uses minerals uncovered in mines.

 

Unit 2

 

What are some non-metallic ores?

Ore is a type of rock which contains important minerals. These minerals may be metallic or non-metallic. Some important non-metallic ores include types of rock such as limestone, gravel, chalk, sand and slate. Important carbon-based ores include diamonds, coal, graphite and petroleum.

 

What are non-metallic ores used for?

Mined rocks are often used to create building materials. Cement is made from rocks such as limestone and gypsum. Concrete is made from cement and sand. Some stones are turned into bricks or building blocks. Precious and semi-precious stones are used in jewelry. Potash is used in fertilizers. Carbon-based minerals such as coal and petroleum are burnt for energy.

 

Unit 3

 

What are some common uses of metals?

People often use metals like gold, platinum, silver to make jewelry. They use iron, copper, and lead to make tools.

 

2. Can any of metals be dangerous?

There are a number of toxic metals. For example, lead and uranium are toxic metals. Uranium is also radioactive. These metals can be dangerous. When exposed to them for a long time, some of them can kill people.

 

Unit 4

 

What are some types of ore deposits?

There are different ore deposits. One common type is lens-type. Lens-type deposits are thick in the middle. But they get thinner in the edges. Other types include bench, bank and tabular.

 

How do miners assess the quality of ore and coal deposits?

Miners assess the quality of ore and coal deposits in many ways. One way is looking at the uniformity of the deposit. Another way to assess the quality of coal deposits is by their grade.

 

 

 

Unit 5

What processes occur before mining takes place?

The first stage of developing a mine is prospecting. The next stage is exploration. This is when companies find out the quantity and quality of the deposits.

How do miners extract materials from the earth?

Miners extract materials through various methods. If the deposit is deep underground, they will need to drill into the ground to reach it. They may use explosives to blast the rock. If the rock is soft, they use boring machines instead. If the deposit is close to the surface, they will simply dig into the earth.

 

Unit 6

What are some types of surface mining?

There are several types of surface mining. Open-pit mining involves stripping away the surface of the earth. Hydraulicking involves removing deposits using high pressure water. Solution mining is used for soluble deposits.

2. What are the advantages of of surface mining?

85% of all minerals in the USA are extracted using surface mining. This is because it is the most productive way of extracting minerals. It is also very safe.

 

Unit 7

What are some different types of subsurface mining?

Subsurface mining methods are put in three categories: supported methods, unsupported methods, and caving methods. Supported methods are room-and-pillar, shrinkage stoping, and sublevel stoping. Unsupported methods are cut-and-fill stoping, square-set stoping, and stull stoping. Caving methods are longwall mining and block caving.

Why do mining companies need to use different subsurface mining methods?

There are various reasons that mining companies decide to use different subsurface methods. For one, the mining method usually depends on the material being mined. The location and the accessibility of the ore deposit are also important factors. Lastly, companies consider the cost of the project and the amount of ore.

 

 

Unit 8

What are some different parts of a surface plant?

A surface plant at a mine has several structures that are important for the mine. For example, most surface plants have an administrative building. A surface plant also has storage buildings, warehouse and change house, vehicle storage and emergency buildings.


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