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it comes from lava
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What are two ways to mine coal?
Coal is mined by two methods: surface or 'opencast' mining or underground or 'deep' mining.The choice of mining method largely depends on the geology of the coal deposit. Underground mining currently accounts for a bigger share of world coal production than opencast; although in several important coal producing countries surface mining is more common.
What are the different methods of mining?
Here are two of the main categories of mining:Underground Mining - Underground modes of access include drift, slope, and shaft mining, and actual mining methods include longwall and room and pillar mining. Drift mines enter horizontally into the side of a hill and mine the coal within the hill. Slope mines usually begin in a valley bottom, and a tunnel slopes down to the coal to be mined. Shaft mines are the deepest mines; a vertical shaft with an elevator is made from the surface down to the coal.Surface Mining - Surface-mining methods include area, contour, mountaintop removal, and auger mining. Area mines are surface mines that remove shallow coal over a broad area where the land is fairly flat. Huge dragline shovels commonly remove rocks overlying the coal (called overburden).
What are two types of coal mining?
Surface mining is used to produce most of the coal because it is less expensive than underground mining. Surface mining can be used when the coal is buried less than 200 feet underground.In surface mining, giant machines remove the top soil and layers of rock known as "overburden" to expose the coal seam. Once the mining is finished, the dirt and rock are returned to the pit, the topsoil is replaced, and the area is replanted.Underground mining, sometimes called deep mining, is used when the coal is buried several hundred feet below the surface. Some underground mines are 1,000 feet deep. To remove coal in these underground mines, miners ride elevators down deep mine shafts where they run machines that dig out the coal.
What are two environmental problems with the mining and use of coal?
The use of coal creates pollution in the air and the problem with mining is it can cave and its depleting the natural resources of coal but also damaging the ecosystem underneath Hopes This helps XD
What two names for the process by which soil and rock are stripped from the Earths surface to expose underlying coal?
Surface mining and Strip mining :)
What are two methods used for mining coal?
it comes from lava
What are the two methods that people use to extract coal?
Open cast and mining are the 2 used
What are two ways to mine coal?
Coal is mined by two methods: surface or 'opencast' mining or underground or 'deep' mining.The choice of mining method largely depends on the geology of the coal deposit. Underground mining currently accounts for a bigger share of world coal production than opencast; although in several important coal producing countries surface mining is more common.
How do you mine coal?
Coal is mined by two methods: surface or 'opencast' mining or underground or 'deep' mining.The choice of mining method largely depends on the geology of the coal deposit. Underground mining currently accounts for a bigger share of world coal production than opencast; although in several important coal producing countries surface mining is more common.
How is coal mined from the earth?
The two commonest methods are deep pit mining or open cast mining. With deep=pit mining, shafts are dug vertically downwards, then tunnels excavated horizontally to extract the coal. With open-cast mining, the top-soil is simply scraped away, using large excavators, and the coal is transported away tpo be processed.
What are the different methods of mining?
Here are two of the main categories of mining:Underground Mining - Underground modes of access include drift, slope, and shaft mining, and actual mining methods include longwall and room and pillar mining. Drift mines enter horizontally into the side of a hill and mine the coal within the hill. Slope mines usually begin in a valley bottom, and a tunnel slopes down to the coal to be mined. Shaft mines are the deepest mines; a vertical shaft with an elevator is made from the surface down to the coal.Surface Mining - Surface-mining methods include area, contour, mountaintop removal, and auger mining. Area mines are surface mines that remove shallow coal over a broad area where the land is fairly flat. Huge dragline shovels commonly remove rocks overlying the coal (called overburden).
What are two types of coal mining?
Surface mining is used to produce most of the coal because it is less expensive than underground mining. Surface mining can be used when the coal is buried less than 200 feet underground.In surface mining, giant machines remove the top soil and layers of rock known as "overburden" to expose the coal seam. Once the mining is finished, the dirt and rock are returned to the pit, the topsoil is replaced, and the area is replanted.Underground mining, sometimes called deep mining, is used when the coal is buried several hundred feet below the surface. Some underground mines are 1,000 feet deep. To remove coal in these underground mines, miners ride elevators down deep mine shafts where they run machines that dig out the coal.
What two methods are used to remove rocks and minerals from the ground?
mining and blasting and maybe drilling
What are coal mining act regulations?
Two of the regulations for coal mining include:1. The wastes from coal use must be disposed in secure landfill sites.2. The building in which the coal is processed, must have a ventilation system.
Where can you fossil fuels?
Fossil fuels such as coal, oil and natural gas generally need to be extracted from the earth. Mining and well drilling (depending on the substance) are the two main methods for accomplishing this.
How has technology affected the mining or use of coal throughout history?
Technological success has changed the life of everyone in the world and it has also changed the way coal mining companies explore and market coal. High-tech and safe exploitation and usage of coal is the demand of the 21st century. In order to correspond to these new requirements the effective organizing management of human resources must take place. In other words, the technologies have made a coal mining industry a high-technological affair that is equipped with computers and all the necessary machinery Nowadays thousands of men and women in the world are working in 2,560 mines in 26 countries to supply billions tons of coal. Till the 1950th coal mining companies applied two methods of exploration - surface mining techniques or underground ones. Surface mining techniques are popular and are widely used in the USA mines since 1970s. This method is useful when coal deposits lie near the surface and can be easily extracted. Another method - an underground one - is used when coal deposits lie deep under the surface. In this situation continuous mining machines are used in the "room-and-pillar" method. In the 1950s, a new underground mining method appeared in Europe. It is called a 'longwall mining' method that applies laser technology. Today, it is widely used by coal mining companies in the world. From this moment the coal exploration, extraction and delivery to the market have become secure, effective, clean and not harmful for the environment. Nowadays the use of computers, lasers, satellites and other technologies has become a usual thing in coal mining industry and many coal mining organizations, such as Globaltex Industries Inc, apply all these advances in their business. From now on the coal mining extraction has become absolutely safe for people thanks to high-tech technologies and effective human resources management work. The high-tech mining technology is of great importance in enlarging the competitive forces of the coal mining industry. The state and private coal mining corporations make great efforts in order to put into action high-tech technologies, so that up-to-date equipment. The coal mining industry is becoming more and more mechanized.
What are two environmental problems with the mining and use of coal?
The use of coal creates pollution in the air and the problem with mining is it can cave and its depleting the natural resources of coal but also damaging the ecosystem underneath Hopes This helps XD
