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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.
Oct 09, 2018· According to the mines Act 1952 "Open cast working" means a quarry, that is to say an excavation where any operation for the purpose of searching for or obtaining minerals has been or is being carried on, not being a shaft or an excavation which...
Dec 03, 2009· Strip mining is a term used for shallow but extensive open pit mining. Things like coal, bauxite, and oil sands are mined this way. If you are in a strip mine you can see the sky. Underground mining is exactly that underground, using tunnels and/or shafts. High value minerals like gold, copper, uranium, and diamonds are mined in underground ...
Open pits are for deposits that are tilted or even vertical. Extraction is limited to a relatively smaller area, and the mining operation moves down over time. To dig deeper, the pit also has to be widened over time, increasing the ratio of overburden:ore. Eventually, you will have to remove so much overburden that extraction no longer is ...
Openpit Mining Openpit mining, also known as opencast mining, opencut 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 .
Open pit mines can be used in coal mining, and they are used extensively in "hard rock" mining for ores such as metal ores, copper, gold, iron, aluminum, and many minerals. In a open pit coal mine, the pit bottom would be the bottom mined coal seam elevation, since it is usually feasible to extract multiple seams when surface mining coal.
Oct 20, 2018· Shaft mining or shaft sinking is excavating a vertical or nearvertical tunnel from the top down, where there is initially no access to the bottom. When the top of the excavation is the ground surface, it is referred to as a shaft; when the top of...
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 it''s .
what is the difference between an open pit mine, a quarry and an underground mine with shafts please give the answer as soon as possible and give your answer in points Social Science Minerals and Energy Resources
Surface mining, including strip mining, openpit mining and mountaintop removal mining, is a broad category of mining in which soil and rock overlying the mineral deposit (the overburden) are removed, in contrast to underground mining, in which the overlying rock is left in place, and the mineral is removed through shafts or tunnels.
What is the difference between an opencast mine and an open pit ... Sep 6, 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...
Mine is a synonym of quarry. As nouns the difference between mine and quarry is that mine is an excavation from which ore or solid minerals are taken, especially one consisting of underground tunnels while quarry is a site for mining stone, limestone or slate or quarry can be an animal which is hunted, notably mammal or or quarry can be a diamondshaped tile or pane, notably of glass or ...
Mar 07, 2013· what is the difference between an open pit mine a quarry and an .. Opencast mining, shaft ... can any one give .Aug 18, 2008 · . and later by underground methods. The Big hole. »More detailed
What is the difference between openpit mining and underground mining? Underground mining operations attempt to follow the course of a valuable ore deposit as it winds its way in three dimensions ...
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 manmade characteristics that make it unique.
What are the differences between opencut and underground mining? Open Cut Mining. There are many differences between open cut and underground mining. When minerals and deposits are found close to the surface and spread across a large distance, the best way to mine is to use the open cut mining .
What is the difference between strip mining and open pit mining? ... Open Pit Mining is a surface mining technique of extracting rock or minerals from the earth by their removal from an open pit ...
What is the difference between strip mining and open pit mining? ... Strip mining is done maintaining spoil piles system while open pit has a specific mining structure to follow. ...
Difference between open pit mining and shaft mining YouTubeClick to view on Bing446Feb 03 2017nbsp018332 difference between open pit mining and shaft hat is the iMINCOThe many differences between open cut and underground mining are Author Maria Bushdiffer.
Apr 02, 2018· Differences between open pit and underground mining What is underground mining When the minerals are found in rich veins but in large volumes of sterile rocks, the only way to mine them is the underground mining method.
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.
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 openpit mining.
1) What is the difference between surface and subsurface mining? Openpit and strip mines? Shaft and slope? When is each most likely to be used? a) The difference between surface and subsurface mining is that surface mining is on the Earth''s surface and moves the unneeded materials out of the way in order to obtain the desired minerals and energy.
Can someone explain the difference between the two and proscons Not much I could find on the internet that could compare the two togetherStrip Mining vs Open pit mining selfmining submitted 3 years ago by tychionThen you either close down the mine or move the operation underground Since the mining operation stays in one place. 4.
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