grasberg open pit indonesia mining technology

Grasberg Mine – Tembagapura, Indonesia

The Grasberg Mine is a vast open pit mine in Papua, Indonesia, forming a crater an entire mile wide.For years it has been one of the most productive mines in the world, with massive reserves of ...

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Grasberg Copper-Gold Mine, Indonesia

of Papua, Indonesia. Re-discovered in 1960, production by Freeport began in 1973 from the Ertsberg open pit. Rapid expansion followed and the production from several different ore bodies ramped up to 240''000 tons per day. The Grasberg ore bodies contain very high combined copper-gold grades, especially when considering the size of production.

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グラスベルグ

Grasberg Open Pit, Indonesia, geology and mining technology; Freeport-McMoRan > Who we are > Our History Accessed 27 August 2013. Freeport-McMoRan > Worldwide Operations > Indonesia > Grasberg Minerals District Accessed 27 August 2013. SEC 10-K Report "Gold Mine in the Clouds", documentary at smh.tv, Sydney Morning Herald

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Grasberg Open Pit Copper Mine ...

Mining at Grasberg Open Pit. The workings comprise an open-pit mine, an underground mine and four concentrators. The open-pit mine, which forms a mile-wide crater at the surface, is a high-volume low-cost operation, producing more than 67 million tonnes of …

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Freeport reaches deal with workers to end Indonesia copper ...

 · Mining operations at Freeport-McMoRan Inc.''s giant Grasberg open pit site in the Indonesian province of Papua "have returned to normal" after …

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PAPER OPEN ACCESS Geology Controls Grade Variance at ...

The Grasberg open pit mine is located at 4285m above sea level at the core of the highlands of West New Guinea island, within central ranges of the Papua Province of Indonesia (figure 1). The Grasberg

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Exports from Grasberg copper mine forecast to drop in 2019

 · The exports of copper concentrate from Indonesia-based Grasberg mine are predicted to drop this year due to a decline in production as operations shift from open pit to underground mining. Energy and Mineral Resources Ministry minerals director Yunus Saefulhak said that the exports are expected to decline from around 1.2 million tonnes last ...

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Grasberg mine

Grasberg Open Pit, Indonesia, geology and mining technology; Freeport-McMoRan > Who we are > Our History Accessed 27 August 2013. Freeport-McMoRan > Worldwide Operations > Indonesia > Grasberg Minerals District Accessed 27 August 2013. SEC 10-K Report "Gold Mine in the Clouds", documentary at smh.tv, Sydney Morning Herald

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Indonesia''s Ore Export Ban and its Impact on Freeport ...

 · Impact on Freeport-McMoRan: Freeport-McMoRan''s Grasberg mine has been operating since 1972, represents 73% of Indonesia''s copper production, is one of the country''s largest taxpayers, and produced 1/5 th of Freeport''s $14.8B in revenue in 2016.The political uncertainty and threat of an export ban posed considerable risk if applied to copper concentrates, potentially resulting in ...

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PTFI Virtual Tour

Freeport Indonesia is now ready to welcome the era of underground mining, as the Grasberg open pit mine will shut down operations in 2020. Freeport Indonesia''s active underground mining operation at this time is the Deep Ore Zone (DOZ) mining block. The Deep Mill Level Zone (DMLZ) and Big Gossan underground mines are undergoing preparation ...

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Grasberg-Mine – Wikipedia

George A. Mealey: Grasberg. Mining the Richest and Most Remote Deposit of Copper and Gold in the World, in the Mountains of Irian Jaya, Indonesia. ... Grasberg Open Pit Copper Mine, Tembagapura, Irian Jaya, Indonesia. In: mining-technology . Abgerufen am 4. Mai 2017 (englisch). ...

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copper mining indonesia from china

"Grasberg Open Pit Indonesia" - Mining Technology. Mineralisation is largely disseminated and chalcopyrite dominant having average grades of 1.2 copper and 0.5 g/t gold. The second intrusive stage the Main Grasberg . InfoMine - Official Site

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Major Mines & Projects | Grasberg Mine

Mine Life. 2019. PT-FI began open-pit mining of the Grasberg ore body in 1990. The final phase of the Grasberg open pit was mined during 2019, including the removal of the open pit ramps. In aggregate, the Grasberg open pit produced over 27 billion pounds of copper and 46 million ounces of gold in the 30-year period from 1990 through 2019.

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Highlights on Indonesia''s copper industry

The mining of the final phase of the Grasberg open pit was completed in Q4 2019 and the mine transitioned from open-pit mining to large-scale underground mining. Grasberg Block Cave is estimated to contain proven and probable reserves of 275.2 billion ounces of copper and 14.2Moz of gold as of December 2019. Source: • Deloitte Indonesia ...

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Top 10 deep open-pit mines

 · The miming operation at Grasberg consists of both open pit and underground mines. The Grasberg open pit is more than 550m deep. Grasberg is the largest gold mine in the world. The mine also produces copper and silver. The Grasberg open pit operation started in 1990 and expected to continue up to 2016.

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Lilik WIDODO | Lecturer | Bandung Institute of Technology ...

Highly fractured rocks in Grasberg open pit and surrounding of PT Freeport Indonesia (PTFI) result in fractured groundwater flow media. It is due to the complex geological structure and ...

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Distraction or disaster? Freeport''s giant Indonesian mine ...

 · FILE PHOTO: Trucks are parked at the open-pit mine of PT Freeport''s Grasberg copper and gold mine complex near Timika, in the eastern region of Papua, Indonesia …

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The 10 biggest copper mines in the world

 · The Grasberg mineral deposit was discovered in 1988. Open-pit mining operation started in 1990. Mining at the Grasberg open-pit, which is one of the deepest open-pits in the world, is expected to continue up to 2016. PTFI holds a 90.64% interest in the Grasberg mining operation. The Government of Indonesia holds the rest, representin a 9.36% stake.

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(PDF) Transition from open-pit to underground as a new ...

The present mine plan is for open-pit operations and is to cease operating in 2013 at a depth of 1100m and the remained deposit must be economically exploited by block caving [4, 5]. Grasberg copper-gold mine in Indonesia is known as a combined mine of open-pit and underground. Mining by open-pit method will finish by 2015 [6, 7].

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Operations Strategy Formulation

PT Freeport Indonesia has decided to alter its mining operations from open-pit mining to underground mining in Grasberg. A change of mining area focus directly affects its related departments, and even need new operations strategy to address the transition. Considering its long-term run of mining operations, its strategic issues are assessed

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New milestones in Grasberg underground move

 · PT-FI is still mining the final stages of the Grasberg open pit. During the June quarter, it opened an additional mining area to extend pit life options into the next quarter and potentially longer. According to the company, the mine sequencing changes in the open pit delayed access to the high-grade material previously forecast to be produced ...

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PT Freeport Indonesia

The open-pit method is used in mining the Grasberg ore body, as this method is suitable for Grasberg, where the ore body occurs near the highland surface (Grasberg). Almost the entire open-pit mining process consists of the stages of drilling, blasting, sorting, hauling, and crushing of ore.

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Grasberg mine — Wikipedia Republished // WIKI 2

The Grasberg mine is the largest gold mine and the second largest copper mine in the world. It is located in the province of Papua in Indonesia near Puncak Jaya, the highest mountain in Papua. It has 19,500 employees. It is mostly owned by Freeport-McMoRan (FCX), which owns 48.74% of PT Freeport Indonesia (PT-FI), the principal operating subsidiary in Indonesia, including 9.36% owned through ...

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Mining for the Future. Appendix J: Grasberg Riverine ...

Gold and Copper are mined at Grasberg with a conventional open pit, truck and shovel technology. The 400 m deep open pit is operated in addition to an underground zone. At present, about 10% of the ore originates from the underground operation (Montgomery Watson, 1999). Approximately 635,000 tonnes per day of material is mined to produce

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Grasberg Block Cave Underground Mine

The Grasberg Block Cave targets the same ore body that was historically mined from the surface as part of the Grasberg open-pit mining operation. Discovered in 1988, the Grasberg copper-gold deposit is located within the Sudirman Mountain Range, in the Papua province of Indonesia.

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Grasberg Open Pit, Indonesia

 · Grasberg Open Pit, Indonesia. December 29, 2014. ... MINING . The workings comprise an open pit mine, an underground mine and four concentrators. The open pit mine – which forms a mile-wide crater at the surface – is a high-volume low-cost operation, producing more than 67 million tonnes of ore and providing over 75% of the mill feed in ...

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The world''s biggest gold mines: Top ten

 · Grasberg gold mine in the Papua province of Indonesia was discovered in 1988. The Grasberg mining operation consists of the Grasberg open-pit and four underground mines, namely DOZ, DMLZ, Big Gossan, and Grasberg Block Cave (GBC). It also includes an undeveloped ore body named Kucing Liar.

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Grasberg gets new open-pit slope monitoring system

 · PT Freeport Indonesia (PTFI) Geo Services Division recently enhanced the slope monitoring system at Grasberg mine with the purchase of two IBIS-M radars. "Grasberg …

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