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Open cast mining is a type of surface mining in which mineral resources are removed from the earth through large holes or pits dug into the surface The term open cast mining is used most commonly in Great Britain In the United States open cast mining is usually called open-pit or open-cut mining

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Open-pit mining methods are applicable to mining ore deposits that apex at or near the surface If the deposit apexes below the surface the overburden and barren capping overlying the ore must be removed in advance of open-pit mining The removal of this material is known as stripping

Dec 09 2012· Open-pit Mining Opencast Mining Open-cut Mining Strip Mining … Open-pit mining also known as … countries are not likely to make a difference among an open-pit mine and other kinds of open-cast mines …Underground Mining … More detailed

Mining is a practical industry that seeks efficient ways to extracts mineral wealth from the ground During the nineteenth century precious metals deeper than about three hundred feet called for underground drift or hardrock mining Occasionally ore bodies sufficiently close to the surface made open pit or open cast mining practical

Sep 06 2006· Best Answer An open cast is when it s a huge open area with no roof so you can look in and it lets the sun in big enough to drive trucks around in Like if the Grand Canyon was a mine Look up Kimberley s big hole for an idea Open pit is when …

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Apr 21 2014· The Difference Between Underground Mining And Surface Mining 1 The Difference Between Underground Mining And Surface Mining The process of removal of essential mineral ores or geological substances from soil or sand is called mining These minerals are of great value and are abundantly available in rocks and earth s surface

Placer mining ˈ p l æ s ər is the mining of stream bed deposits for minerals This may be done by open-pit also called open-cast mining or by various surface excavating equipment or tunnelling equipment Placer mining is frequently used for precious metal deposits particularly gold and gemstones both of which are often found in alluvial deposits—deposits of sand and gravel in

what are the differences between open cast and shaft mining differences between open pit and open cast mining difference between open pit and open cast what is the difference between an open pit mine a quarry and an Open

A quarry is the same thing as an open-pit mine from which minerals are extracted The only trivial difference between the two is that open-pit mines that produce building materials and dimension stone are commonly referred to as quarries hope it is helpful mark it as brainlist

Apr 02 2018· The Witwatersrand gold mine in South Africa is an excellent example of underground mining that exploits gold from ancient rocks at depths of up to 4 km underground What is open pit mining On the other hand open-pit mining is the most common mining and ranges from very low-priced minerals to finely disseminated gold deposits

Differences between open pit and underground mining Main Difference In surface mining the ore is accessed directly from the Earth s surface and contact is maintained with the surface throughout the operation Underground or subsurface mining is accomplished with the help of tunnels going into the Earth and does not occur on the surface

recover minerals encompassing the specific mining methods of • Open pit mining • Open cast mining • Quarrying of dimension stone • Highwall auger mining Open pit and open cast methods employ a conventional mining cycle of operations to extract minerals rock breakage is usually accomplished by drilling and blasting for

Opencast mining otherwise known as surface mining consist of three different techniques strip mining open-pit mining and mountain top blasting In general the three processes include breaking up soil and rocks via explosives and then removing debris until coal seams are exposed Trucks and shovels are used to remove excess fragments as a

Underground versus Open Pit Mining If you scan any news source these days you will find countless stories about the world s unquenchable desire for mineable resources like oil coal and precious metals Recently Firwin has begun to extend its reach into the ever-growing world of mining With this in mind we thought this would be the

difference between open cast mining and shaft mining manufacturer in Shanghai China difference between open cast mining and shaft mining is manufactured from Shanghai Xuanshi It is the main mineral processing solutions XSM stone crushing machine project-difference between open cast mining and shaft mining

Open-pit Mining Open-pit mining also known as opencast mining open-cut mining and strip mining means a process of digging out rock or minerals from the earth by their elimination from an open pit or borrow The word is used to distinguish this type of mining from …

Feb 23 2018· As mining progressed the ore deposits began running out making it necessary to seek them deeper inside the ground This historical event highlights the difference between two techniques of mining which are used even today - surface and subsurface mining Let us …

what are the differences between open cast and shaft mining differences between open pit and open cast mining difference between open pit and open cast what is the difference between an open pit mine a quarry and an Open

Difference Between Underground And Open Cast Mining Open-pit open-cast or open cut mining is a surface mining occurs as veins in hard rock—underground mining methods are to Open pit mining Get Price And Support Online The Differences Between Shaft Mining And Opencast Mining…

Strip mining and subsurface mining Strip mining or surface mining is performed when surface soil and rock are stripped off to reach the mineral of concern When such operations are done surface water bodies lakes streams etc gets acidity Acid mine drainage occurs when water molecules infiltrates the spoil banks The water reacts with sulfide minerals to produce sulfuric acid

Aug 22 2017· The differences between the many kinds of mines especially open pit mines and underground mines are many and miners tend to prefer one over the other Every mining site has its natural and man-made characteristics that make it unique

Strip Mining Strip mining is a kind of surface mining The ore is very near to the surface of the land but has one or more layers of rock and filth on top of it To mine the ore these layers have to be removed The steps in strip mining are similar to open-pit mining

Mar 07 2013· what is the difference between an open pit mine a quarry and an … Open-cast mining shaft mining quarrying… can any one give …Aug 18 2008 · … and later by underground methods The Big hole… More detailed

Oct 16 2017· Open-pit open-cast or open cut mining is a surface mining technique of extracting rock or minerals from the earth by their removal from an open pit or borrow Open pit- Reclamation after completion Open cast- Reclamation during mining open pit ge

What is the difference between strip mining and open pit mining 1 Depth strip mining is done for 60 m while open pit is done for 60 to near about 120 m Open-cast mining is famous for coal

Jun 25 2016· Difference between pit mine and quarry A quarry is the same thing as an open-pit mine from which minerals are extracted The only trivial difference between the two is that open-pit mines that produce building materials and dimension stone are commonly referred to as quarries

May 08 2013· Canada and global mining industry This is one of a series of videos I edited for Vale The producer I worked for travelled to many locations around the world Shots were taken in the air on the

A quarry is the same thing as an open-pit mine from which minerals are extracted The only non-trivial difference between the two is that open-pit mines that produce building materials and dimension stone are commonly referred to as quarries underground mining-digging tunnels or shafts into the earth to reach buried ore deposits