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What is the Difference between Strip mining and

Dec 03 2009Strip 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 Get price


Surface Mining Methods and Equipment

1 2 Open Pit vs Underground Mining Methods While most mineral deposits can be mined by either surface or underground methods some minerals can only be recovered in a hybrid manner usually by initial extracted by open pit mining followed by underground methods Here a Get price



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 Get price


open pit vs underground copper mining

open pit ore mining vs underground ore mining open pit ore mining vs underground ore mining Forging Tc Tipped Cross Bits For Rock Drilling Buy Tc coal mining and rock drilling Ore mining bit and coal mining bit to mining industry tunneling and underground engineering open pit construction drill Compared with taper chisel rock drill hammer bits metal cross taper bits have a betterGet price


Open Pit Mines Southern Arizona

Jan 14 2010Arizona is the United States' largest source of copper primarily mined from a type of ore body known as porphyry copper deposits The most common approach to extracting metal-bearing ore from a porphyry copper deposit is by open-pit mining although such mines also typically include some underground activities Get price


The World's 20 Largest Copper Mines

Jun 25 2019Cerro Verde copper mine located 20 miles southwest of Arequipa in Peru is the seventh-largest copper mine in the world The open-pit mine contains an estimated 12 9 million metric tons of recoverable copper Cerro Verde has been operational since 1976 Freeport-McMoRan (FCX) holding a 53 56 percent interest is the mine's operator Get price


Mining Costs

In general underground mining is more expensive than open pit mining as with open pit mining the minerals are found near the surface at a maximum of approximately 200-400 meters depth in bulk tonnage The mining costs are estimated in a mining company's feasibility study which when available can be found on the company's website (often hidden between the news releases) Get price


The many advantages of underground mining

Apr 27 2015Enhancing its opencast operations with an underground mining could potentially increase the Kun-Manie mine site by at least 19 percent 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 Get price


Advantages and disadvantages of open pit mining

Apr 02 2018Advantages and disadvantages of open pit mining Open pit mining is profitable when the deposit is not very deep or when the terrain is sandy or delicate so that underground mining is not possible Labor costs are lower both in excavation and transportation and allow the use of Get price


Strip Mining vs Open pit mining mining

Both are forms of surface-mining Out here in the western states of America strip-mining is largely associated with coal open-pits more with metal mines of various kinds I know of a small copper mine in Utah and a phosphate mine in northern Idaho that kind Get price


What is one environmental advantage that underground

Aug 05 2017Both types of mining underground and open pit pose severe environmental impacts Similar problems can be identified for both methods but the amount of severity can be different Open pit mining being carried out on the surface directly impact tGet price


Basics of an open pit mine

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 Get price


Open Pit Mine

Jul 24 2004The main transportation from open-pit mine to ore stockpile is carried out by trucks and dumpers The capacities range between 25 and 85 t (Fig 11 39) Low-profile dumpers are used in underground mines having access by decline Conveyer belts are commonly used to transport ore in underground mines with access to shaft or incline Get price


South Africa's Largest Open

Jul 22 2019Copper mining began at Palabora in 1965 and by 1967 the open-pit mine was fully operational The hole reached 800 meters down into the Earth before the depletion of resources made it uneconomical to continue mining in the pit Operations moved underground (below the pit) and mostly out of sight in the early 2000s Get price


Underground v s Surface Coal Mines Is Deep Drilling

Underground mining Underground or "deep" mining consist mostly of two methods - room-and-pillar and longwall mining Open-pit mining utilizes blasting and mineral removing digger deeper into the earth causing a crater-like result Copper sends a message to markets that growth is already wrecked reports Bloomberg Get price


What is the difference between an open cast mine and an

Oct 16 2017Open-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 geGet price


open pit mining vs underground mining risk

open pit mining vs underground mining risk open pit mining vs underground mining risk Underground Mining Vale The Mining Life Open Pit vs Underground MICROMINEOpen pit and underground mines are often in remote locations that require miners to work and live on mining camps for long periods of time which can cause psychological problems Get price


Reading Open

Reading Open-Pit Mining Open-pit mining or open-cast mining is a surface mining technique of extracting rock or minerals from the earth by their removal from an open pit or borrow This form of mining differs from extractive methods that require tunneling into the earth such as long wall mining Get price


Open Pit Mining Pros Cons

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 Get price


The Electric Mine

The Electric Mine conference April 4-5 2019 Radisson Admiral Toronto Harbourfront Canada Delegate registration US $1 300 / GB 1 000 (Discounts are available for company delegations – see below) Mine electrification in open pits and underground is inevitable Whether the rationale is tied to reducing greenhouse gas emissions improving employee health cutting ventilation costs or Get price


What impact does open pit mining have on the environment

Unregulated mining has the potential to release harmful substances into the soil air and water Open pit mining where material is excavated from an open pit is one of the most common forms of mining for strategic minerals This method of mininGet price


Open Cut and Underground Mining

Underground Mining Underground Mining is generally used for areas where the mineral seam is too far underground for open cut mining to be of use A tunnel called a decline is created to allow workers and machinery to reach the location of the minerals Stope mining is used for most hard rock mining of minerals such as copper silver lead Get price


Chuquicamata Underground Mine

The Chuquicamata underground mine will allow Codelco to exploit the remaining resources located below the current ore deposit until 2058 The project will transition one of the world's largest open-pit mines into an underground mine one of the largest most efficient and advanced in the world Get price


Types of Australian mine Open Pit or Underground Mine

Open pit mining is a technique used to extract copper ore near the earth's surface Open pit mining is the most widely used technique of mining copper today It is accomplished by creating and using benches or terraces to gradually reach deeper under the earth's surface Underground mining is used when the copper ore is not near the earth's Get price


Strategic mining options optimization Open pit mining

Strategic mining options optimization Open pit mining underground mining or both A strategic plan is to be developed for a moderate dipping gold-silver-copper orebody that is amenable to both open pit and underground mining It is required that in addition to these mining options a combined case of concurrent open pit and underground Get price


Underground versus Open Pit Mining

Underground versus Open Pit Mining Unlike open pit underground mining requires that you take into account a wide variety of added requirements These include complex ventilation systems area and local ground support and of course finding a consistent safe and cost-effective way to get your materials to the surface Get price


The worlds deepest biggest and deadliest open pit mines

It was once a thriving copper mine where millions of tons of copper ore silver gold and other metals were extracted from the soil When underground mining became too costly in the 1950's Berkeley Pit became an open pit mine Get price


The Actual Difference Between Surface and Underground Mining

Feb 23 2018The Actual Difference Between Surface and Underground Mining Open-pit Mining Removing ore to leave a crater Quarrying Surface mining is commonly used to extract coal and copper and increasingly precious metals like gold Underground mining is used for gold platinum zinc lead and increasingly coal Get price


A Brief Introduction to the Types of Surface Mining Methods

Mar 08 2018Open-pit mining is a method in which an ore is removed by digging a pit in the ground and is used to remove copper gold iron as well as non-metallic minerals It is normally used when the rock layer above the ore is too weak to allow underground tunnels Get price


Operate an open pit over and through the voids of an old

Youns TAHIR Said Rziki Tarik Soror Mohammed Sellami and Mohammed Karim Benhachemi "Operate an open pit over and through the voids of an old underground mining Case of Tazalaght copper Ore open pit mine " International Journal of Innovation and Applied Studies vol 14 no 1 pp 37–45 January 2016 Get price


Types of Australian mine Open Pit or Underground Mine

Olympic Dam (copper uranium gold and silver North of Adelaide South Australia) Renison Bell (tin on the west coast of Tasmania) What to expect from both Open Pit and Underground mining With both open pit and underground mining the work can be hard and the hours long and you can be rostered on for many days at a time Get price


open pit vs underground copper mining

Open Pit Mining vs Underground Mining - Gold Prospecting Forum - Nugget One of the factors in determining whether a corporation will use underground vs open pit mining is the type of ore body containing the ore and the quality of the ore in the body If the gold/silver/copper is actually in its native free milling state in the ore body such as in hydrothermal quartz veins where theGet price


A Simplified Economic Filter for Open

A Simplified Economic Filter for Open-Pit Mining and Heap-Leach Recovery of Copper in the United States By Keith R Long1 and Donald A Singer2 Open-File Report 01-218 2001 This report is preliminary and has not been reviewed for conformity with U S GeologicalGet price


An Introduction To Surface Mining

Open-pit mining is usually utilized for near-surface deposits such as gravel and sand The term "quarry" often refers to an open-pit mine where the product is rock (commonly building stone) - usually either gravel sand or dimension stone Open-pit mining is relatively safe and cheap and it Get price



Access to high-grade underground ore was brought forward by two years 33% mine productivity rate increase from 1 2 Mtpa to 1 6 Mtpa over a longer underground mine life Reduced open pit waste mining by nearly 70 million tonnes Improved project economics including increased cash flows and a longer mine Get price

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