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Shallow coal deposits in the US and other countries are often removed by surface mining, also known as strip mining. The soil atop the seam is removed, then replaced after the coal has been removed. This can be very disruptive to the local ecology.
In India and other countries, open pit or "open cast" mines may be used to mine deep deposits that are accessible from the surface. This process is widely used for metal ores worldwide. However, the traditional process for deep subterranean coal seams is to create vertical shaft mines that do not remove the surface burden.
What else can I help you with?
Is moisture and impurities removed by time and pressure as hard coal forms?
Yes, as hard coal forms from peat through a process of time and pressure, moisture and impurities are gradually removed. This transformation leads to the creation of coal with higher carbon content and a lower moisture and impurity content.
How did they mine for coal?
Coal was typically mined by digging deep underground shafts or tunnels to reach coal seams. Miners would use tools such as picks, shovels, and explosives to extract the coal from the earth. In some cases, coal was also extracted through strip mining where the top layers of soil and rock were removed to access the coal seams.
How was coal mined?
Coal was typically mined by digging tunnels underground to reach coal seams. Miners would use tools such as picks and shovels to extract the coal from the seams. In some cases, explosives were also used to break up the coal. Once extracted, the coal was usually transported to the surface using carts or conveyor belts.
How is coal refined?
Coal refining is nowhere near as complex as oil refining. Coal is washed with a water or chemical bath to remove some impurities. As much as 30 percent of the sulfur can be removed by washing. At the power plant, coal is pulverized to a heavy powder just before being burned. From http://www.ucsusa.org/clean_energy/coalvswind/brief_coal.html
Why are coal known as fossil fuel?
Coal is considered a fossil fuel because it is formed from the remains of plants and trees that lived millions of years ago. Over time, the organic matter accumulated and was subjected to heat and pressure, resulting in the formation of coal deposits. This process makes coal a non-renewable resource, as it takes millions of years to form.
How coal is removed from deep under ground?
deep mining is how coal removed
How coal is removed from deep under the ground?
Coal is removed from deep underground through a process called underground mining. This involves digging shafts into the ground, then using machinery to extract the coal from the coal seam. Miners then transport the coal to the surface for processing and distribution.
How does coal get removed from he ground?
Digging
How did child labor improve in coal mines?
Children were removed from the coal mines.
What word is if you unscramble the letters crove?
There are two possibilities:Corve (shallow wooden box on runners like a sled used for hauling coal out of shallow mines)Cover
How is salt removed from rock or coal?
By washing with water
How was coal removed from the earth?
Coal is removed from the earth through a process called mining. There are two main methods of coal mining: surface mining and underground mining. In surface mining, large machines remove the topsoil and rock layers to access the coal deposits, while in underground mining, tunnels are dug deep into the earth to reach the coal seams.
How is coal removed from earth..?
Coal is typically removed from the earth through surface mining or underground mining. In surface mining, large machines called draglines or shovels remove the coal from the surface of the earth. In underground mining, miners dig tunnels to access the coal seams and extract the coal using machinery.
What is the big gap that coal is from?
Coal is not from any "big gap" . It is a solid part of the subterranean strata. In fact a big gap is left when coal is removed.
When coal is removed in strips it is called?
When coal is removed in strips, it is called strip mining. This method involves removing strips of soil and rock to expose coal seams, which can then be extracted using heavy machinery. Strip mining is commonly used for coal mining in areas where the coal seams are close to the surface.
What is the method used to extract shallow deposits of coal from the earth?
The method used to extract shallow deposits of coal from the earth is surface mining, specifically using methods like strip mining and open-pit mining. These methods involve removing the overlying vegetation, soil, and rock to access the coal seams underneath, making it easier and more cost-effective to extract the coal.
Why can oil be extracted from the ground more cheaply than coal?
Oil can be extracted much easier than coal because it is a liquid. Once the oil reservoir is tapped, it can be removed relatively easily, whereas coal must be physically removed at every extraction.
