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why are coal mines deep inside the earth

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Why are coal mines deep inside the earth? Answers

Why are coal mines deep inside the earth? Asked by Wiki User. 9 10 11. Answer. Top Answer. Wiki User Answered . 2009-10-03 05:12:14 2009-10-03 05:12:14. because coal is deep inside the earth

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Why coal mines are found deep inside the earth Brainly.in

Jan 05, 2019· Why coal mines are found deep inside the earth 2 See answers sikha38 sikha38 Hey!! your ans is here. Coal is a sedimentary rock..It is made of small rocks,dead plants, and the fossils of dead animals which are buried deep in the ground.That is why it is found deep in the ground of the earth.

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Why do coal and petroleum have to be mined from deep

Jan 09, 2019· Surface deposits visible to the eye are where it started and much of the coal mined these days is still only 1–15 feet of soil and sandstone below the surface, “overburden”, so it’s scraped off and the coal excavated from in a large open pit with

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why do coal and petroleum have to be mined from deep

Jul 01, 2018· Why do coal and petroleum have to be mined from deep inside the earth? why are they called fossil fuels? Ask for details ; Follow Report by P564 07.01.2018 They called fossil fuels because the coal and petroleum is made up of dead plans or bodies and it get at the deep of the earth so coal and petroleum is also get in deep 4.5 10 votes 10

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Opportunities and Challenges in Deep Mining: A Brief

Aug 01, 2017· Since the exploitation of the earth’s resources has a long history, coal and mineral resources at shallow depths have gradually become exhausted, and the exploitation of coal and mineral resources continues ever deeper into the earth. At present, deep mining at 1000 m is normal; the depth of coal mines has reached 1500 m, the depth of

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Coal National Geographic Society

Dec 22, 2012· Underground mining, sometimes called deep mining, is a process that retrieves coal from deep below the Earth’s surface—sometimes as far as 300 meters (1,000 feet). Miners travel by elevator down a mine shaft to reach the depths of the mine, and operate heavy machinery that extracts the coal and moves it above ground.

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How did coal get so deep inside earth? Answers

Deep inside Earth rocks are hotter and softer, so they will deform in a ductile manner, stretching and flowing like taffy. Coal mining is a dangerous job in the coal mines, as you see by the

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Why do coal and petroleum have to be mined from deep

Jan 09, 2019· Surface deposits visible to the eye are where it started and much of the coal mined these days is still only 1–15 feet of soil and sandstone below the surface, “overburden”, so it’s scraped off and the coal excavated from in a large open pit with

Get Price

why do coal and petroleum have to be mined from deep

Jul 01, 2018· Why do coal and petroleum have to be mined from deep inside the earth? why are they called fossil fuels? Ask for details ; Follow Report by P564 07.01.2018 They called fossil fuels because the coal and petroleum is made up of dead plans or bodies and it get at the deep of the earth so coal and petroleum is also get in deep 4.5 10 votes 10

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The Temperature Of The Earth As Shown By Deep Mines

At a recent meeting of the American Society of Civil Engineers, observations on the temperature of the earth, as shown by deep mines, were presented by Messrs. Hamilton Smith, Jr., and Edward B Dorsey. Mr. Smith said that the temperature of the earth varies very greatly at different localities and in different geological formations.

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OOPArts Found in Coal and Stone: Is There an Explanation

Sep 28, 2018· According to the World Coal Association, the process responsible for the formation of coal began 360 to 290 million years ago. With this in mind, it would seem absolutely impossible for any human artifacts to be found within this ancient substance; but incredibly, many items have reportedly been found in such deposits, either buried inside the coal itself or found buried deep down within coal

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Coal Mining Documentary The Most Dangerous Job On Earth

Nov 09, 2017· Coal Mining Documentary The Most Dangerous Job On Earth Classic HistoryCoal mining is the process of extracting coal from the ground. Coal is valued for

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Terrifying Facts About the World's Deepest Gold Mine

The mine is as deep as 10 Empire State Buildings, and its 236 miles of tunnels are longer than the New York subway.. Every day, 4,000 workers descend into the mine through elevators—or, as they

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why is coal mine is warm inside

Why is the air temperature very hot in deep mines? Yahoo. Aug 25, 2010· The geothermal gradient can make conditions in the super-deep mines uncomfortable, dangerous and deadly. Hot enough to spontaneously explode rocks or bend steel. The TauTona Gold Mine in South Africa is the deepest mine in the world, bottoming out at roughly 3.9 kilometers.

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If it is cold down a mine shaft, how deep do you have to

Jul 21, 2007· I have worked down many mines in the UK. The deepest was the Florence coal mine which was 560meters deep from memory. It was very warm and yes most of the of wokers had to disrobe to keep cool. The hottest was Coventry coal mine which was unbearable.

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Why is the air temperature very hot in deep mines? Yahoo

Aug 25, 2010· The core of the Earth is around 6000 degrees celcius, about halfway to the core is about 3000, and so on. It should make sense then, that when you go very deep within the crust, where deep mines are located, it gets hotter. The gradient is something like 25 or 30 degrees celcius per kilometer you go within the Earth. Hope this was helpful.

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Coal mining Wikipedia

Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content and since the 1880s, has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production. In the United Kingdom and South Africa, a coal mine and its structures are a colliery, a coal mine is a 'pit', and

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Nation's Deepest Coal Mine Now Ranks Among Deadliest The

Sep 26, 2001· Low-sulfur coal, coveted by power plants, exists in abundance beneath green ridges near Brookwood, Alabama, but miners must take longest elevator ride in

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12 Environmental Effects of Coal Mining Environment 911

Coal is either extracted from deep inside the earth or removed from its surface. The former is known as underground mining, the latter as strip mining or mountaintop removal. Either process contributes a high level of damage to the environment: #12 Noise pollution

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What Is the Environmental Impact of Mining and Burning Coal?

Surface coal mining damages the environment. Mountaintop removal mining is used to access layers of coal buried deep within mountains. This mining technique alters the landscape and damages ecosystems. Because coal is so abundant and relatively inexpensive, many people are reluctant to give it up as a fuel source.

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Coal mining Wikipedia

Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content and since the 1880s, has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production. In the United Kingdom and South Africa, a coal mine and its structures are a colliery, a coal mine is a 'pit', and

Get Price

The Temperature Of The Earth As Shown By Deep Mines

At a recent meeting of the American Society of Civil Engineers, observations on the temperature of the earth, as shown by deep mines, were presented by Messrs. Hamilton Smith, Jr., and Edward B Dorsey. Mr. Smith said that the temperature of the earth varies very greatly at different localities and in different geological formations.

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Does coal damage the earth? Answers

as coal is made of pplant remains that have been buried long ago,it is so deep inside earth. Why is coal extracted where it is? Because you cannot extract coal from a mine when youre halfway

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why is coal mine is warm inside

Why is the air temperature very hot in deep mines? Yahoo. Aug 25, 2010· The geothermal gradient can make conditions in the super-deep mines uncomfortable, dangerous and deadly. Hot enough to spontaneously explode rocks or bend steel. The TauTona Gold Mine in South Africa is the deepest mine in the world, bottoming out at roughly 3.9 kilometers.

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The Actual Difference Between Surface and Underground Mining

As can be seen, surface mining is much more advantageous than its counterpart. However, when an outcropping ore body stretches deep inside the Earth, surface methods can be used to begin the mining operation, which then need to be continued further by underground mining.

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Terrifying Facts About the World's Deepest Gold Mine

The mine is as deep as 10 Empire State Buildings, and its 236 miles of tunnels are longer than the New York subway.. Every day, 4,000 workers descend into the mine through elevators—or, as they

Get Price

Nation's Deepest Coal Mine Now Ranks Among Deadliest The

Sep 26, 2001· Low-sulfur coal, coveted by power plants, exists in abundance beneath green ridges near Brookwood, Alabama, but miners must take longest elevator ride in

Get Price

Stuff in Coal Welcome to 6000years.org Amazing Bible

There are mines where silver is dug. There are places where gold is refined. Men dig iron out of the ground and melt copper out of the stones. Men explore the deepest darkness. They search the depths of the earth and dig for rocks in the darkness. Food grows out of the earth, but underneath the same earth all is torn up and crushed.

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Coal Wikipedia

Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams.Coal is mostly carbon with variable amounts of other elements; chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over millions of years.

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Why is the air temperature very hot in deep mines? Yahoo

Aug 25, 2010· The core of the Earth is around 6000 degrees celcius, about halfway to the core is about 3000, and so on. It should make sense then, that when you go very deep within the crust, where deep mines are located, it gets hotter. The gradient is something like 25 or 30 degrees celcius per kilometer you go within the Earth. Hope this was helpful.

Get Price

12 Environmental Effects of Coal Mining Environment 911

Coal is either extracted from deep inside the earth or removed from its surface. The former is known as underground mining, the latter as strip mining or mountaintop removal. Either process contributes a high level of damage to the environment: #12 Noise pollution

Get Price

What Is the Environmental Impact of Mining and Burning Coal?

Surface coal mining damages the environment. Mountaintop removal mining is used to access layers of coal buried deep within mountains. This mining technique alters the landscape and damages ecosystems. Because coal is so abundant and relatively inexpensive, many people are reluctant to give it up as a fuel source.

Get Price

The Hazards of 19th Century Coal Mining eHISTORY

The coal operators needed engineering expertise among their employees in order to dig deep mines. There were no professional mining engineers at this time--it was an expertise not yet formally developed--so the operators turned to skilled miners from Wales, England, and Scotland, men who had developed expertise through practical experience.

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A new deep coal mine deep under the sea? Next to

The first deep coal mine in Britain for thirty years is being proposed at Whitehaven, with the promise of new jobs in an old mining community. But the site is within five miles of Sellafield. Activists are concerned both about the definite contribution to climate change, as well as the potential threat of a nuclear accident. SAM MOISHA sets out their concerns

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World’s deepest manmade hole dubbed ‘well to hell’ plunges

Aug 27, 2019· Earth’s deepest artificial hole stretches 40,000 feet below the surface — and it’s only covered by a rusty metal lid. Russia’s Kola Superdeep Borehole was created by the Soviets in the

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Nation's Deepest Coal Mine Now Ranks Among Deadliest The

Sep 26, 2001· Low-sulfur coal, coveted by power plants, exists in abundance beneath green ridges near Brookwood, Alabama, but miners must take longest elevator ride in

Get Price

Abandoned Mine an overview ScienceDirect Topics

In underground mines that used a room-and-pillar mining system, a relatively large proportion (30–50%) of the coal is left in place.The roof coals and carbonaceous shales are also left in the mine. The tonnage of combustible material remaining in the mine may exceed that extracted during mining. Older mines had several entries at the outcrop for drainage, ventilation, and access.

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Stuff in Coal Welcome to 6000years.org Amazing Bible

There are mines where silver is dug. There are places where gold is refined. Men dig iron out of the ground and melt copper out of the stones. Men explore the deepest darkness. They search the depths of the earth and dig for rocks in the darkness. Food grows out of the earth, but underneath the same earth all is torn up and crushed.

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How Is Coal Extracted? Reference

Apr 08, 2020· According to the World Coal Association, more than 6,185 million tonnes (Mt) of hard coal was mined from coal mines around the world as of 2012. Coals mines use surface mining for coal deposits buried less than 200 feet underground. In this type of mining, giant machines remove top-soil and layers of rock to expose large beds of coal.

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11 Most Massive Mines in the World YouTube

Sep 27, 2017· From the worlds largest gold mine found on the top of a mountain to the largest diamond mine in the world here are the most massive mines in the world!Subscr...

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Life after coal: The decline and rise of West Virginia

Aug 10, 2020· Now, fewer than 20,000 locals work in these mines, and the jobs that do exist pay far less than they used to, thanks to successful anti-union actions by coal companies.

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Application of Tunnel Boring Machines in Underground Mine

application of TBMs in mining dates back to late 50’s. This was followed by several attempts in 60’s and 70’s in other underground mining operations (including coal mining in England). The penetration rates achieved by the machine in most of these projects were far above the capabilities of any drill

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How deep are underground coal mines? Answers

Companies engaged in this industry extract coal that lies 200 to 1,000 feet below the earth's surface, though some mines are as deep as 2,000 feet. Ask Login Home Science Math History Literature

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Fire in the Hole Science Smithsonian Magazine

Eastern Pennsylvania sits on the world’s greatest deposits of anthracite—shiny, hard, clean-burning, high-BTU coal in deep beds, squeezed and twisted by the formation of ridges like the one

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