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For an open cut, the overburden has to be removed so that the ore can be accessed. An underground mine needs a tunnel to be dug through the host rock until you reach the ore. In both cases, there is usually waste rock which also has to be removed from the mine so your machines can get to the ore once you have reached the ore body.
Wiki User
∙ 10y ago
Open cast mining involves removing large amounts of soil and rock to access mineral deposits. This often results in waste material, known as overburden, being piled up on the surface in the form of waste heaps. These waste heaps can contain unwanted materials or low-grade ore that were removed during the mining process, and are left on the surface as they are deemed economically unviable to process further.
Farha Mohammed
Because we dig
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How was cast iron discovered?
Cast iron was discovered by accident during the Iron Age when iron ore was mixed with charcoal in a hot fire, resulting in the production of molten iron which could be cast into different shapes. This process was refined by various civilizations over time, leading to the widespread use of cast iron in tools and cookware.
Where is the oldest bell in Arkansas?
The oldest bell in Arkansas is located at St. Edward Catholic Church in downtown Little Rock. This bell was cast in 1850 and has been in use since then.
What moldboard made of cast iron had a central ridge ending in a sharp point that cut the soil and wings that pushed the soil off It was said to have begun the agriculture revolution when it came to?
The moldboard plow, made of cast iron, had a central ridge ending in a sharp point that cut through the soil, with wings that pushed the soil off to the sides. It is considered to have revolutionized agriculture by making it easier to cultivate larger areas of land more efficiently.
What was used before the steel plow?
Before the steel plow, farmers used wooden plows or tools made of iron. These plows were heavier and less effective at breaking up tough soil compared to the steel plow invented by John Deere in the 19th century.
How were the casts made of the bodies from Pompeii?
The casts of the bodies from Pompeii were created by pouring a mixture of plaster and liquid into the cavities left by the decomposed bodies in the volcanic ash. Once the plaster set and hardened, the ash was carefully chipped away to reveal the casts of the victims in their final moments.
What is different deep mining and opencast mining?
rocks and minerals are easy to find and extract when they outcrop on or near the Earth's surface. All that needs to be done id to clear the vegetation and soil from the surface and start digging. Such mining is called open cast mining. deep mining involves sinking a vertical shaft down to the rock layer containing minerals, making a horizontal tunnel following the mineral layer, extracting the minerals by digging done by machines and miners, bringing the loose rock from the mine and piling it up on waste heaps on the surface and transporting the minerals. deep mining is more dangerous than open cast as miners work underground while in open cast workers work on the surface.
A mining process in which rock is stripped away to expose mineral deposits near the surface is?
Strip, surface or open cast mining.
What mining method is used to extract ore from beneath the earths surface?
Deep shaft mining, open-cast mining & adit mining.
What are the different types of mines?
THERE ARE DIFFERENT TYPES OF MINING SUCH AS SURFACE MINING,open cast mining, strip mining,alluvial mining,quarrying mining,underground mining,and drilling
What technologies are used in mining?
There are some technological methods that are used in mining are:Open-cast mining : Open-cast mining is done when a mineral is located very close to the surface. In the open-cast mining, different minerals are taken out by removing the surface layer. Open-cast mining is famous for coal mining in India and many other countries.Shaft mining : The word 'shaft' refers to deep bores. In the shaft mining, deep bores are created to reach mineral deposits. This is because, these deposits lie at great depths. Petroleum and natural gas are extracted by shaft mining.
What type of mining can i use with an horizontal layer of coal close to the surface?
Open Cast mining. A form of strip mine.
What is the removal of the surface of and area to obtain the nonrenewable resources below?
strip mining Also known as open-cast mining (UK).
What is opencast mining?
open cast minng involves the digging out of minerals that occur on the surface of the earth
What is the name of the type of mining that takes place when coal is found close to the surface of the earth?
Usuallly known as Open Cast Mining - ie no tunnelling involved
What is the difference between opencast mining and shaft mining?
in open cast miniing the earth surface is simly dug out to take minerals which are shallow.in shaft mining we should put bores to take minerals which are deep under the earth
Why does open cast mining destroy land habitats?
Simply because - open cast mining removes vast tracts of land to get at the minerals underneath. Seam mining is less obtrusive - as a shaft is dug vertically down - and the minerals extracted from horizontal seams under the earth without disturbing the land on the surface.
What do you mean by opencast mining?
open cast mining is...
