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What category of mining would be used to extract ore close to surface?
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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 minerals are being searched for when strip mining?
Coal and oil sands, found in extensive layers close to the surface, are the usual targets of strip mining.
What is undergroumd mining?
Mining is removing a mineral or metal from the earth to use it or sell it. When the substance being mined is close to the surface, it is simply dug out of the ground (surface mining). However, if the substance is deep underground, a shaftway may be dug to reach the material, much like a tunnel. That is underground mining.
What is mining subsidence?
In undergound mining, ore or coal is removed, creating an empty space underground. After mining, the rock is allowed to settle and close the empty space. The ground above the mined area subsides, or moves down,
Is magnetite close to Earth's surface?
im not telling bish
How do surface mining and underground mining differ?
Surface mining occurs close to the surface (less than a mile deep), while underground mining is underground.
What is surface mining?
Surface mining is removing soil and taking out minerals found fairly close to the earth's surface.
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 minerals are being searched for when strip mining?
Coal and oil sands, found in extensive layers close to the surface, are the usual targets of strip mining.
What is undergroumd mining?
Mining is removing a mineral or metal from the earth to use it or sell it. When the substance being mined is close to the surface, it is simply dug out of the ground (surface mining). However, if the substance is deep underground, a shaftway may be dug to reach the material, much like a tunnel. That is underground mining.
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
Where in the us is shaft mining found?
Anywhere that the mineral or metal is not close to the surface, requiring that a shaft be dug to get to it.
How is surface and underground mining different?
Surface mining is used where the ore or material to be extracted is located fairly close to the surface. The overlying ground cover is removed, the material is mined, and the ground cover is ordinarily replaced. Subsurface mining is used where the material is in veins deep beneath the surface, or obstructed (by rock layers, water tables, or other strata) in a way that make surface access impractical. Early mines used existing caves, but technology has brought increasingly deep and complex drilling to reach veins of coal or metal ores.Surface MiningSafer and easier than subsurface mining.Does more damage to the surface ecosystems than subsurfaceCreates more of a mess than subsurface or open cut mining.Subsurface MiningNot as much widespread damage to ecosystemsDifficult and expensive to digVery dangerous conditions can include collapses, released gases, particulates in the air, low oxygen, and heat
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.
Where is coal dug?
Coal is primarily dug from underground mines. These mines are typically located in coal-rich regions and are accessed by tunnels and shafts. Surface mining methods, such as strip mining or mountaintop removal, may also be used in areas where the coal seam is close to the surface.
Do jellyfish live close to the surface or deep in the sea?
close to the surface
Why the fishes were swimming close to the surface of the water after feed?
because they want to swim close to the surface
