open pit mining pros and cons

Open Pit Mining Pros & Cons | Sciencing

Open-pit mining is much safer than shaft mining. In underground mining, the threat of a cave-in or release of toxic gas is a constant concern. When shaft mining was the most common method of ore extraction, thousands died in cave-ins, gas events and accidents involving equipment. In 1907 alone, more than 3,200 deaths related to mining occurred.

Pebble Mine debate in Alaska: EPA becomes target by ...

An open-pit mine The proposed future site of the Pebble Mine is a desolate stretch of Alaska's southwestern coastal plain, just north of Bristol Bay and 200 miles southwest of Anchorage.

Environmental Science- Mining Flashcards | Quizlet

Pros and cons of Open Pit mining It is large enough for men and machinery to move about, is cost efficient and safe compared to open shaft mining. Cons: Leads to habitat loss, creates large holes in the ground and those holes allow water to drain into them where they could become acidic.

Open Pit Mining Pros And Cons - Crusher USA

Jun 26, 2014· » open pit mining pros » pros and cons of open pit mining » what is the difference between open pit and open cast mining » open pit mining pros and cons » difference between open cast and open pit mining » open cast mining, shaft mining and dredging mining » key differences between open pit mining and underground mining

5 Chief Pros and Cons of Strip Mining – ConnectUS

Sep 24, 2015· 5 Chief Pros and Cons of Strip Mining. Sep 24, 2015 Aug 29, 2015 by Crystal Ayres. ... It's a method referred to as open cast, open cut or stripping. First, the trees, shrubs and other structures in the area to be mined are removed – a task accomplished with heavy duty bulldozers. ... List of Pros of Strip Mining. 1. It is much more ...

Economic Impacts of Open Pit Mining | Bizfluent

Business processes for mining include physical design methods, scheduling collections, expelling and removal of waste materials from the pit. In the United States, there are several open pit-mining projects in operation, extracting daily to support three levels of economics; local, country and global, with commodities worth billions of dollars.

The many advantages of underground mining - born2invest.com

Apr 27, 2015· Choosing between open-pit mining and underground mining is a decision that every mining company makes, but it is not based on the miner's whim and predilection. Selection always depends on the geometry properties of the deposit, its position, location, and type. Generally, startup explorers and miners begin with open-pit mining because it is ...

what are the pros of open-pit mining? | Yahoo Answers

Jan 26, 2009· Best Answer: Open-pit mining (as opposed to underground mining) has several advantages:- 1) Low cost of recovery - large trucks can enter the mine, get filled up with rock from a large excavator and drive away to the processing plant. 2) No need to leave stability pillars, necessary to hold up underground ...

disadvantages of open pit mining - YouTube

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What are some of the most important disadvantages and ...

Sep 06, 2016· Underground Mining is a method of Mining, where the mineral is extracted without removing the top soil and rocks. In this way we do not disturb the surface feature such as forest, agriculture land, rivers and residential areas. The major disadvant...

What are pro's and cons of open pit mining - answers.com

What are pro's and cons of open pit mining? some pros are: easier extraction, costs less, the mechanichal advantage, the safer working conditions, and the cosumer benifits. some cons are the ...

Open pit mining pros & cons - ehow.co.uk

Open-pit mining is a type of mineral or rock extraction that does not necessitate tunnelling into the earth. When a desired mineral or rock is near the surface, companies typically opt for open-pit mining due to its lower costs and increased efficiency. Open-pits are typically dug in tiers and with ...

What are the Advantages and Disadvantages of underground ...

Apr 12, 2009· Best Answer: I am assuming you are wanting an answer that is considering the advantages / disadvantages of u/ground mining compared with open pit mining? (Let me know if this isn't the case.) Advantages Underground mining (as compared to open pit exploitation) allows a mine operation to be largely 'hidden' having only adits or headframes protruding above the surface.

disadvantages of open-pit mining - dreamkey-wholesale.nl

Open Pit Mining Pros & Cons | Sciencing. Open pit mining -- or strip mining -- is an extraction process for ore or fossil fuels that takes place at the surface of a mining site. Worldwide, 40 percent of mining occurs at the surface, according to Greenpeace International.

What are the advantages and disadvantages of underground ...

Feb 13, 2016· Shallow mineral or coal deposits can be economically mined by open-pit or strip mines. However, with deeper mineral or coal deposits it becomes very costly to remove a great deal of overburden in these kinds of settings. So, in these cases underground mining is more cost effective. The downside is that human health and safety are at greater ...

The Advantages of Open Pit Mining | Sciencing

Mar 13, 2018· Open pit mining does offer some advantages over traditional deep shaft mining. Pit mining is more cost effective than shaft mining because more ore can be extracted and more quickly. The working conditions are safer for the miners because there is no risk of cave in or toxic gas. Open pit mining is the preferred ...

Pros and Cons of Strip Mining - Vision Launch

Strip mining is a form of resource collection that involves dirt removal from a very large area to sift through it. Instead of working underground, a pit is created deep in the ground and all work is accomplished on the surface. Here are the pros and cons of strip mining to consider. Strip Mining Pros …

Open Pit Mining by Madison Bangs on Prezi

Open Pit Mining Opinion The Consumer Benefits (the cost of this type of mining is lower, which impacts the consumer) Contamination of the Environment (this form of mining destroys landscape and can pollute nearby soil and water systems) Open Pit Mine after a landslide had taken

Oil Sands Mining | Student Energy

Open pit mining is similar to coal mining operations – large shovels scoop the oil sand into trucks that then take it to crushers where the large clumps of earth are broken down. This mixture is then mixed with water to form a slurry that is transported to a plant, where the bitumen is separated from the other components in a froth process.

Minerals and Mining Flashcards | Quizlet

Open-pit mining. the recovery of materials from an open pit in the ground. ... Deep Surface Mining Pros ... Deep Surface Mining Cons - spoil often left in mine so people are not as affected by it on the surface, but it can still leak to the surface as toxic gases.

What Are the Pros and Cons of Strip Mining? (with pictures)

Jul 01, 2019· Strip mining is a form of surface mining that is usually employed for the recovery of materials such as coal and tar sand, which are relatively near the surface of the earth. Surface vegetation, soil, and rocks are removed in strips, often in conjunction with controlled explosions, to make removal more efficient.

What are some pros and cons of mining? | Socratic

Jun 08, 2017· List of major aspects below: In a nutshell, although it is an undeniable fact that mining affects our world enormously, we ought not to demonize its practice while its benefits are constantly enjoyed by the large majority of people. PROS: I. Economic incomes. enormous earnings by exportation, private contracts II. Job offers/opportunities for locals.

What Are the Advantages of Open-Pit Mining? | Reference.com

Advantages of open-pit mining include a lower cost compared with other methods and a higher safety level. Open-pit mining is also better suited to quarries containing smaller amounts of …

What Are the Disadvantages of Opencast Mining ...

What Are the Disadvantages of Opencast Mining? Opencast mining, also known as surface mining or strip mining, has disadvantages that include disturbance of the environment and local ecosystems, exposure of radioactive elements and contamination of freshwater sources. The use of heavy machinery and blasting techniques also create environmental ...

What are the pros and cons of subsurface mining? - Quora

Advantages of underground mining: *less surface disturbance *less environmental disturbance *less waste mined per tonne of ore *ability to mine resources that are not economic as a surface mine *cheaper to set up mine development for deep ore depo...

Open Pit Mining Pros And Cons - aimimup.co.in

Aug 29, 2016· It can lead loss of life, displacement of human beings due to Pros And Cons Open, pit Mining Open Pit Mining Pros & Cons eHow eHow How to Discover . Open pit mining or strip mining is an extraction process for ore or fossil fuels that takes place at the disadvantages of an opencast mine, ore crusher plant disadvantages of open ...

open pit mining cons - BINQ Mining

Open Pit Mining Pros & Cons | . Open-pit mining is a type of mineral or rock extraction that does not necessitate tunneling into the earth. When a desired mineral or rock is near the surface … »More detailed

What are the cons for open pit mining - answers.com

What are the cons for open pit mining? ... Open pit mining may be used when very large quantities of material are mined, such as gold mining, copper ore, etc. It permits removal of a much greater ...

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