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Aug 16, 2013· Ultimately we feel this will result in un-mined ounces and further downgrade of reserves and resources--not good if your long term survival depends on more, not less, gold. In the Glossary of Open Pit Mining terms (appended below) we explain the concept of strip ratio, and how higher gold prices should allow an operation to sustain larger strip ...
What is the maximum stripping ratio of open pit Diamond mines before considering going underground? I am busy with a design project and I need to benchmark average stripping ratios of .
The stripping ratio is the relationship between the waste and ore volume. Different sensitivity analysis will also be performed in order to appreciate what happens to the project economics when certain variables of high importance, such as the processing capacity, gold price and dilution rate vary. Open-pit mining operations are long-term
Jul 25, 2018· 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...
Nov 22, 2016· Mining Engineering and Basic Knowledeg. Mining Engineering and Basic Knowledeg. Skip navigation Sign in. Search. ... 24th clip Surface Mining (Stripping Ratio) Viriyah Miner. Loading...
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Strip Ratio of X:Y, (waste, mill feed including low grade stockpile) This site uses cookies. Some of these cookies are essential to the operation of the site, while others help to improve your experience by providing insights into how the site is being used.
Based on the technical report titled "Technical Report and Resource Update, Goldlund Gold Project, Sioux Lookout, Ontario" with an effective date of March 15, 2019, which is available at under First Mining's SEDAR profile. The overall stripping ratio for the whittle pit is 4.71:1.
CHAPTER 8 Stripping Ratios, Pit Limits & Cutoff Grade Optimization Dr. Teuku Andika R Putra USM 2014 Stripping Ratios The stripping ratio (SR) refers to the amount of waste that must be removed for a given quantity of ore in open pit mining.
Notes: Strip Ratio Mining Methods 27 Mistakes are often made when computing the strip ratio. It's all in the words and you have to watch the flow of material and how it is classified. For example, according to Freeport McMoran's 2007 10K filing, the concentrator is capable of processing 75,000 metric tons per day of primary sulfide ore and
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.
Oct 26, 2019· 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 application in the mining of ore, the utility of the stripping ratio is the determination of the approximate ratio of waste material that must be moved in order to reach a certain ratio of ore.
Stripping ratio - Wikipedia, the free encyclopedia In mining, stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required to .
Oct 10, 2019· Waste mined decreased by 20% to 3.37Mt whilst ore mined increased by 56% to 333kt resulting in a waste to ore stripping ratio of 10:1. ... Sandspring Resources proposes name change to Gold .
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.
The ratio of overburden excavated to the amount of mineral removed is called the overburden ratio or stripping ratio. For example a stripping ratio of 4:1 means that 4 tonnes of waste rock are removed to extract one tonne of ore. Lower the ratio, the more productive the mine. Stripping ratio varies with the area under mining.
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.
Yes, a 3:1 stripping ratio means that mining one cubic meter of ore will require mining three cubic meters of waste rock. How do you calculate a ratio from a percent? Formula to calculate the ratio
It is worth noting the instant relationships that must exist between the quantities of ore, waste rock and the actual cut-off grade. Fig. 3 shows this typical variation, by means of introducing the concept of geological reserve Q + W, which is defined as the sum of the quantities of ore and waste, as well as showing a typical variation of the stripping ratio with cut-off grade.
Dec 23, 2018· The lower a strip ratio, the more profitable the mine will be, since less material needs to be moved. High-grade gold contained in narrow veins that snake through the rock can only be mined by ...
INTRODUCTION TO MINING 1.1 MINING'S CONTRIBUTION TO CIVILIZATION Mining may well have been the second of humankind's earliest endeavors— granted that agriculture was the first. The two industries ranked together as the primary or basic industries of early civilization. Little has changed in the
About New Gold Inc. New Gold is a Canadian-focused intermediate gold mining company with a portfolio of two core producing assets in Canada, the Rainy River and New Afton Mines as well as the owned Blackwater development project. The Company also operates the Cerro San Pedro Mine in Mexico (in reclamation).
Nov 19, 2015· At the face value, Centamin is a very attractive gold mining company. ... and waste mining (by increasing the strip ratio in the middle period .
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