stripping ratio of al mine

Major Mines & Projects Solomon Hub Mine

Major Mines & Projects Solomon Hub Mine

The mined ROM ore is transported to elevated pads (ROM pads) for tipping into a ROM feed bin at a number of separate primary crushing hubs. Two primary crushing hubs, with one for the Firetail Project (for Brockman ore) and one for the Kings Project (with the one for the Kings project comprising two crushing streams for CID and DID ore, and for the Firetail project comprising a single stream

What is stripping ratio in mining? Quora

What is stripping ratio in mining? Quora

In mining, stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required to be handled in order to extract some tonnage of ore. For example, a 3:1 stripping ratio means that mining one tonne of ore wil

coal ton to bcm « BINQ Mining

coal ton to bcm « BINQ Mining

Stripping Ratio(s) – Surface Mining COAL MINING AND GEOLOGY 24 Nov 2012 Coal miners measure waste in BCM, or bcy, and coal in tonnes or tons.Thus in coal SR is the number of BCM of waste that needs to be »More detailed

Mowana copper mine Report Wood Mackenzie

Mowana copper mine Report Wood Mackenzie

Dec 18, 2019 · Mowana is an open pit mine. From 2009 to 2014 the mine had a very high stripping ratio averaging 20:1. Plant capacity steadily increased and reached 1.4 Mt/a by 2017. The operation was suspended in 2015, and restarted again in 2017, with this analysis based on commercial production declared from mid2018.

Stripping ratio Article about stripping ratio by The

Stripping ratio Article about stripping ratio by The

Improved pit slope walls as a result of a detailed geotechnical study completed by Genivar and a new mine design developed by Roscoe Postle Associates in 2013 resulted in a 7 per cent decrease in total waste by 114,000 tonnes, thus reducing the stripping ratio from 8.7 to 7.8.

Our Operations South Africa Exxaro

Our Operations South Africa Exxaro

Loion: West of Belfast Market: Domestic Product: Thermal Coal Resources (inclusive): 15,7Mt measured Reserves: 1,5Mt proved 1,4Mt probable Mining method: Opencut Runofmine: 3,5Mt Lifeofmine

RESPONSE LETTER SEC.gov

RESPONSE LETTER SEC.gov

The average life of mine cost per tonne is calculated as the total expected costs to be incurred to mine the orebody divided by the number of tonnes expected to be mined. The average life of mine stripping ratio and the average life of mine cost per tonne are recalculated annually in the light of additional knowledge and changes in estimates.

(PDF) Stripping Ratios, Pit Limits & Cutoff Grade

(PDF) Stripping Ratios, Pit Limits & Cutoff Grade

Stripping Ratios, Pit Limits & Cutoff Grade Optimization

How do you calculate the stripping ratio Answers

How do you calculate the stripping ratio Answers

We divide the overburden thickness by ore thickness to get the stripping ratio For example if we have an overburden thickness of 80m and ore thickness of 50 m, then the stripping ratio will be

what is stripping ratio coal mining Mine Equipments

what is stripping ratio coal mining Mine Equipments

High stripping ratio requires careful planning Mining Weekly 6 Dec 2002 This is due to the high stripping ratio of 19:1 at the mine, meaning for every ton of reef, there is 19 t of overburden. Louw, who learnt the mining

Stripping ratio Article about stripping ratio by The

Stripping ratio Article about stripping ratio by The

Improved pit slope walls as a result of a detailed geotechnical study completed by Genivar and a new mine design developed by Roscoe Postle Associates in 2013 resulted in a 7 per cent decrease in total waste by 114,000 tonnes, thus reducing the stripping ratio from 8.7 to 7.8.

Round Mountain Gold Mine (MRDS #10310392) AU, AG

Round Mountain Gold Mine (MRDS #10310392) AU, AG

In December 1973, Smoky Valley Mining Company (a partnership of CRX, Felmont Oil Co., and Case, Pomeroy and Co.) elected to develop the property based on reserve estimates 12 million tons grading 0.062 opt gold and 0.07 opt silver at a cutoff grade of 0.02 opt gold and with a strip ratio of 1.2:1. The Round Mountain Mine was the first major

IFRS First Impressions KPMG

IFRS First Impressions KPMG

average lifeofmine stripping ratio approach, while others expense such costs as incurred, or follow the US GAAP approach of alloing all production stripping costs to inventory produced in the period. For companies that currently expense these costs, the interpretation will mean not only a change in .

Yandi iron ore mine Report Wood Mackenzie

Yandi iron ore mine Report Wood Mackenzie

It is loed approximately 310 kilometres by rail from Port Hedland, Western Australia. BHP Billiton has an 85% interest in Yandi, with foundation partners Itochu and Mitsui, owning 8% and 7% respectively. It is BHP Billiton''s lowest cost iron ore mine owing to its very low strip ratio

Yandi iron ore mine Report Wood Mackenzie

Yandi iron ore mine Report Wood Mackenzie

It is loed approximately 310 kilometres by rail from Port Hedland, Western Australia. BHP Billiton has an 85% interest in Yandi, with foundation partners Itochu and Mitsui, owning 8% and 7% respectively. It is BHP Billiton''s lowest cost iron ore mine owing to its very low strip ratio

Stripping Ratio Mineral Production Activities

Stripping Ratio Mineral Production Activities

6. Stripping ratio . The main factor in designing a n open pit mine, which largely determines the cost of mining, is the stripping ratio.. Stripping is the removal of waste rock from above and around the orebody. Stripping ratio is defined as the tonnage of waste rock to be mined, divided by the tonnage of ore to be mined from the pit.

Mining Cost Service Costmine

Mining Cost Service Costmine

The results of our annual surveys of U.S. and Canadian copper, lead, zinc, nickel and molybdenum smelters. Includes current and projected availability of furnace capacity, the types of material accepted, deleterious element limits, metals recovered, and indiions of the company''s interest in acquiring additional concentrates.

Fiore Gold Reports Record Fiscal Q2 Gold Production and

Fiore Gold Reports Record Fiscal Q2 Gold Production and

May 21, 2020 · Mined ore production in Q2 of 14,177 tons per day with a stripping ratio of 1.8:1.0 and grade of 0.016 ounces/ton Q2 2020 Pan Mine AISC 1 per ounce sold of

mining engineering: STRIPPING RATIO (S)

mining engineering: STRIPPING RATIO (S)

If you work in a mine, ALWAYS use incremental stripping ratio. Use overall stripping ratio only on capital projects. SURFACE OR UNDERGROUND ? a. Which type of mining is better for your deposit? b. If it is surface mining, when do you stop mining? A Brief Summary. a. Surface mining is much cheaper

Problem #2: Given The Following Information, Calcu

Problem #2: Given The Following Information, Calcu

Problem #2: Given the following information, calculate a) The breakeven stripping ratio for ore vs. waste in a surface mining operation b) The breakeven stripping ratio for surface vs. underground. c) What happens to the breakeven stripping ratio for surface vs. underground if the underground mining costs increase by $1.00/tonore?

Major Mines & Projects SAEC Mine

Major Mines & Projects SAEC Mine

Currently, opencast mining at Portion 16 has been running at an annual rate of 1.2 Mtpa, with mining forecast to be complete by December 2014. The operation is concentrated in a shallow subcropping area with an average strip ratio of 3:1 bcm/t ROM.

IFRS First Impressions KPMG

IFRS First Impressions KPMG

average lifeofmine stripping ratio approach, while others expense such costs as incurred, or follow the US GAAP approach of alloing all production stripping costs to inventory produced in the period. For companies that currently expense these costs, the interpretation will mean not only a change in .

Stripping ratio Wikipedia

Stripping ratio Wikipedia

In mining, stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required to be handled in order to extract some tonnage of ore.For example, a 3:1 stripping ratio means that mining one tonne of ore will require mining three tonnes of waste rock. Stripping ratios are typically reduced to show the volume of waste removal required to extract one unit

lifeofmine strip ratio Spanish translation – Linguee

lifeofmine strip ratio Spanish translation – Linguee

Company''s stripping ratio was higher than the lifeofmine stripping ratio for both the Toquepala and Cuajone mines [] which resulted in the capitalization of mine

Stripping Ratio Mineral Production Activities

Stripping Ratio Mineral Production Activities

6. Stripping ratio . The main factor in designing a n open pit mine, which largely determines the cost of mining, is the stripping ratio.. Stripping is the removal of waste rock from above and around the orebody. Stripping ratio is defined as the tonnage of waste rock to be mined, divided by the tonnage of ore to be mined from the pit.

Understanding Iron Ores and Mining of Iron Ore – IspatGuru

Understanding Iron Ores and Mining of Iron Ore – IspatGuru

Stripping ratios increase with the quality of the ore being mined and cost factors related to beneficiation and transportation. The economic stripping ratio varies widely from mine to mine, depending upon a number of factors. In the case of direct shipping ores, it may be as high as 6:1 or 7:1. In the case of low grade ore, a stripping ratio

Stripping ratio Wikipedia

Stripping ratio Wikipedia

In mining, stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required to be handled in order to extract some tonnage of ore.For example, a 3:1 stripping ratio means that mining one tonne of ore will require mining three tonnes of waste rock. Stripping ratios are typically reduced to show the volume of waste removal required to extract one unit

Prominent Hill Gold and Copper Mine Mining Technology

Prominent Hill Gold and Copper Mine Mining Technology

The dimensions of the initial openpit mine were 480m deep × 1.4km × 1.2km. Ore processing at the Australian mine project. Ore processing at Prominent Hill uses conventional crushing, grinding and flotation with 8mt/a throughput with an average stripping ratio of 7.2. The average headgrade is 1.24% copper with grades higher for the first

(PPT) Calculating Stripping Ratios for Area Strip Mines

(PPT) Calculating Stripping Ratios for Area Strip Mines

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IFRIC 20 — Stripping Costs in the Production Phase of a

IFRIC 20 — Stripping Costs in the Production Phase of a

Aug 26, 2010 · IFRIC 20 considers when and how to account separately for the benefits arising from the removal of mine waste materials (''overburden'') to gain access to mineral ore deposits, as well as how to measure these benefits both initially and subsequently. IFRIC 20 was issued on 19 October 2011 and applies to annual periods beginning on or after 1 January 2013.

Mowana copper mine Report Wood Mackenzie

Mowana copper mine Report Wood Mackenzie

Dec 18, 2019 · Mowana is an open pit mine. From 2009 to 2014 the mine had a very high stripping ratio averaging 20:1. Plant capacity steadily increased and reached 1.4 Mt/a by 2017. The operation was suspended in 2015, and restarted again in 2017, with this analysis based on commercial production declared from mid2018.

RESPONSE LETTER SEC.gov

RESPONSE LETTER SEC.gov

The average life of mine cost per tonne is calculated as the total expected costs to be incurred to mine the orebody divided by the number of tonnes expected to be mined. The average life of mine stripping ratio and the average life of mine cost per tonne are recalculated annually in the light of additional knowledge and changes in estimates.

Economic Surface Mining of Multiple Seams

Economic Surface Mining of Multiple Seams

recovered from the salne mine, but each in a separate pit. Mulliplescam mining is a very important phase of the stripping industry in the United States today. As in the casc of conventional stripping, multipleseam slripmiuing is classified either as area or contour mining .. Area stripmining

What Is a Stripping Ratio? (with picture)

What Is a Stripping Ratio? (with picture)

May 09, 2020 · Esther Ejim Last Modified Date: June 30, 2020 . Stripping ratio is a term that is derived from the mining industry and is used in reference to the openpit mining process. The stripping ratio method of calculating the profitability of the mining procedure is commonly used in the ore or coal mining process. In relation to its appliion in the mining of ore, the utility of the stripping ratio

Mining Cost Service Costmine

Mining Cost Service Costmine

The results of our annual surveys of U.S. and Canadian copper, lead, zinc, nickel and molybdenum smelters. Includes current and projected availability of furnace capacity, the types of material accepted, deleterious element limits, metals recovered, and indiions of the company''s interest in acquiring additional concentrates.

Lecture 4 Calculating Stripping Ratios for Area Strip

Lecture 4 Calculating Stripping Ratios for Area Strip

Calculating Stripping Ratios for Area Strip Mines. Mnge 315 Dr. B. C. Paul spring 2003 revised 2010 Note These notes contain information considered common knowledge to those familiar with Strip Mining. Books such as Elements of Practical Coal Mining and SMEs Surface Mining were specifically referenced

Lecture 4 Calculating Stripping Ratios for Area Strip

Lecture 4 Calculating Stripping Ratios for Area Strip

Calculating Stripping Ratios for Area Strip Mines. Mnge 315 Dr. B. C. Paul spring 2003 revised 2010 Note These notes contain information considered common knowledge to those familiar with Strip Mining. Books such as Elements of Practical Coal Mining and SMEs Surface Mining were specifically referenced

Surface mining planning and design of open pit mining

Surface mining planning and design of open pit mining

Jan 09, 2016 · • Syncrude Tar Sands: SR = 1.2 1.4 • Highland Valley: SR ~0.5 • Bagdad mine: SR ~1.2 • Cortez mine: SR = 1.6 Examples: 2 February 2016 Prof. Dr. H.Z. Harraz Presentation Stripping Ratios Stripping ratio is defined as the ratio of the Overburden/Cover Rock / Waste Rock to the orebody. One of the ways of describing the geometrical

Mining Cost Service Costmine

Mining Cost Service Costmine

The results of our annual surveys of U.S. and Canadian copper, lead, zinc, nickel and molybdenum smelters. Includes current and projected availability of furnace capacity, the types of material accepted, deleterious element limits, metals recovered, and indiions of the company''s interest in acquiring additional concentrates.

Mining Surface mining Britannica

Mining Surface mining Britannica

Mining then ceases. The ratio of the amount of waste rock stripped to ore removed is called the overall stripping ratio. The breakeven stripping ratio is a function of ore value and the costs involved. Ore reserves. The first step in the evaluation and design of an openpit mine is the determination of reserves.

Whats the average stripping ratio of open pit mines around

Whats the average stripping ratio of open pit mines around

Even if there was an average of ALL open pit mines that would not offer any knowledge regarding open pit mining. The stripping ratio in a mine is chosen based on economics.

Kogi Iron Limited (ASX:KFE) Further Lowers Strip Ratio For

Kogi Iron Limited (ASX:KFE) Further Lowers Strip Ratio For

Jan 15, 2014 · The two mining areas have an overall average strip ratio estimated at 0.55 to 1, providing 224 Mt of feed (123 Mt waste), at an average grade of 45.7% Fe. Such a low strip ratio has minimised mining costs over the 21 year mine plan and is proving to be a distinct advantage of the project. Estimated Mining Costs

What is stripping ratio in mining? Quora

What is stripping ratio in mining? Quora

In mining, stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required to be handled in order to extract some tonnage of ore. For example, a 3:1 stripping ratio means that mining one tonne of ore wil

Stripping Costs in the Production Phase of a Surface Mine

Stripping Costs in the Production Phase of a Surface Mine

4 The material removed when stripping in the production phase will not necessarily be 100 per cent waste often it will be a combination of ore and waste. The ratio of ore to waste can range from uneconomic low grade to profitable high grade. Removal of material with a low ratio of ore to waste may produce some usable material, which can be used to

IAS 16 — Accounting for production phase stripping costs

IAS 16 — Accounting for production phase stripping costs

strip ratio approach, which makes use of a strip ratio using the longterm mine plan data and specific identifiion approach, whereby the costs of a stripping campaign are alloed to the section of the mineral ore that become accessible as a result of the campaign.

McEwen Mining Inc. Operations Los Azules

McEwen Mining Inc. Operations Los Azules

In 2017 McEwen Mining announced the results of an updated Preliminary Economic Assessment (PEA) for Los Azules. The report is dated October 16, 2017, with effective date September 1, 2017 . Using the assumptions of $3.00 per pound of copper, $1,300 per ounce of gold, and $17 per ounce of silver, the Los Azules project generates a $2.2 billion AfterTax Net Present Value (NPV) (discounted at 8%

Stripping ratio mining Britannica

Stripping ratio mining Britannica

Other articles where Stripping ratio is discussed: coal mining: Choosing a mining method: calculated with the aid of stripping ratios, which represent the amount of waste material that must be removed to extract a given amount of coal. Stripping ratios can also consider the selling price of coal, and a certain minimum profit can be added to the total cost of producing and

Stripping Ratios: What are They and Why are They Important

Stripping Ratios: What are They and Why are They Important

Examples of stripping ratios. Ioannou gave some examples of mines with good strip ratios, including Lundin Mining''s (TSX:LUN) Candelaria coppergoldsilver mine in Chile at 2.8:1, and Copper

Fiore Gold Reports Record Fiscal Q2 Gold Production and

Fiore Gold Reports Record Fiscal Q2 Gold Production and

May 21, 2020 · Mined ore production in Q2 of 14,177 tons per day with a stripping ratio of 1.8:1.0 and grade of 0.016 ounces/ton Q2 2020 Pan Mine AISC 1 per ounce sold of

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