calculation of reserves mining

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  • Mineral resource classification

    Mineral resource classification is the classification of mineral resources based on an increasing level of geological knowledge and confidence. In an effort to achieve a standard set the classifications, representative bodies from Australia, Canada, South Africa, the USA and the UK reached a provisional agreement in 1997 on the definitions of each of the various mineral classifications.

  • Geomodelling, resource & reserve estimation using mining ...

     · Resource and Reserve Estimation Iso-core grid Density / Specific gravity Recovery factor • Considering Geological disturbance and mining loss Topo grid Quality grid 11. Reserve Estimation Geological Reserves Thickness wise Grade wise Depth wise Mineable Reserves Extractable Reserves Barrier - infrastructure, Bench, conveyor belt etc.

  • JORC : Mineral Resources and Ore Reserves

    JORC, PO Box 660, CARLTON SOUTH, Victoria, 3053, Australia Phone: +61 3 9658 6100 Fax: +61 3 9662 3662 Email: [email protected] [email protected]

  • Lecture Notes

    Calculating Mineral Formulas 2 The resulting "mole numbers" do not appear to be particularly useful because their sum is nor-malized to a number of moles of oxides that has a mass of 100 grams. However, because these are mole numbers, we could immediately write a formula for diopside as follows: In spite of the many digits, it is clear that ...

  • Principles of a Resource/Reserve Classification For Minerals

    MINERAL RESOURCES 1. All naturally occurring metals, nonmetals, and fossil fuels in sufficient concentration can be classified in one or more of the categories. 2. Where the term reserves is used alone, without a modifying adjective such as indicated, marginal, or inferred, it is to be considered ...

  • Reserves and Resources | Fortuna Silver Mines Inc.

    Mining recovery is estimated to average 93% and mining dilution 11%. Mineral Resources are reported at a 100 g/t Ag Eq cut-off grade based on the same parameters used for Mineral Reserves and a 15% upside in metal prices. Proven + Probable Reserves include 1.9 Mt containing 14 Moz of silver and 83 koz of gold reported at a 123 g/t Ag Eq cut-off ...

  • Mineral Appraisals: What is the Value of a Quarry or Mine?

    Mineral Reserves and Resources According to the U.S. Securities and Exchange Commission (SEC) definitions, a reserve is a mineral deposit that can be economically mined at the time of the reserve determination. Proven (measured) reserves are "reserves for which (a) quantity is computed from dimensions revealed in outcrops, trenches,

  • The Calculation of Recoverable Reserves

    calculation. This section is dedicated to the different approaches for reserves calculation. A mining operation can never recover all of the in-situ resources. Some portion of the deposit will be inaccessible or unprofitable to mine. Recoverable reserves are a subset of the resources that can be economically and technically mined.

  • FACT SHEET Mineral Resources and Reserves Estimation

    Mineral Resources and Reserves Estimation . This factsheets clearly defines the meanings of resources and reserves and discusses how exploration and mining companies calculate these figures. The basic geostatistical principles and process that are used in calculating these figures are covered, as are the different types of input data that are

  • Methods for valuating early-stage mineral projects | CSA ...

     · In general, such information includes reasonably assured mineable reserves, workable mining plan and production rate, metallurgical test results and process recoveries, capital and operating cost estimates, environmental and reclamation cost estimates, and commodity price projections. Production Assets are mineral projects that are in production.


    Inferred Mineral Resource (333): Inferred from geological evidence. Tonnage, grade and mineral content can be estimated with low level of confidence. • Indicated Mineral Resource (332): Tonnage, shape, grade and mineral content can be estimated with reasonable level of confidence. Location of boreholes, pits etc are too widely spaced. •

  • Interpreting Drill Results 101

    Ore Reserve Estimation Method

  • Economic Accounting of Mineral Resources in Botswana

    3.2 Mineral Resources and Reserves -----12 3.3 Measuring Resource Rent and Valuing Mineral Assets ----- 13 ... calculation of the estimated value of mineral assets. Section five concludes. 6 Economic Accounting of Mineral Resources in Botswana. 2| Minerals, the Mining …

  • Resources and Reserves Which prices are being used in ...

    Mineral companies typically do not use the spot price to calculate mineral resources and mineral reserves, and prefer to use a broader range of prices that reflect the longer-term variability in the spot price. They believe that mine operating plans and strategic decision making are enhanced when a higher commodity price is used to calculate ...

  • Resource and Reserve Calculation in Seam-Shaped Mineral ...

    In recent years, the introduction of specific software for the evaluation of geological resources and mineral reserves has increased significantly thanks to the use of block models capable of working with large databases and applicable to virtually all types of deposits. It is only in layered, tabular-shaped deposits where the use of block models poses certain drawbacks, not only in terms of ...

  • Mining Calculator, Rock SCU and Mass Calculator, Raw and ...

    Mining Calculator, Trade, Prices, Risks, Profitability, Mass to SCU Converter, Ships List, SCU, Prices and more. Welcome to UEX New Babbage, Stanton, June 29, 2951 CAX™ - Commodities Average Index AGRI B 24.42 (-0.04%) S 26.38 (-0.11%) ACSU B 1.04 S 1.16 ALUM ...


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  • Mineral resource estimation

    Before you can calculate the potential mineral deposit value, you first need to gather some specific data regarding the ore body and the individual drill results.. This required data can be found in the mining company''s press releases in which they announce their drill results.Make sure that this data is announced according to the guidelines of National Instrument 43-101 (i.e. approved by a ...


    Inferred Mineral Resources . 19 April 2005 No.39 MINERAL RESOURCES ORE RESERVES Probable Proved Exploration Results Inferred Indicated Measured Increasing level of geological knowledge and confidence Consideration of mining, metallurgical, economic, marketing, legal, environmental, social and governmental factors

  • Reserves calculation

     · The calculation of reserves depends particularly on the methods used in determining the trace element content. 1. The correlation method is based on the correlation between the main and the trace elements. The coefficient of correlation is determined numerically or graphically using a …

  • ⛏ Mining Calculator | Kryptex

    The mining profitability calculator shows which GPUs are best for your mining rig and what altcoins are the most profitable, given your electricity pricing. Select the graphics cards you would like to use and enter your electricity price. Click "Calculate" to find out how much profit to expect.

  • Mining Valuation Course Transcript

    Third, calculate the net present value of that mining asset in Excel. And finally, run a sensitivity analysis on the value of that asset and output charts to illustrate the range of values. ... 4 Reserves and resources. The mining company''s main assets are its reserves and resources.

  • Mining Industry Overview

    the U.S. mining industry. These mining operations include prospecting, exploration, development, production, mineral processing, environmental restoration and reclamation, and marketing of mineral products. An ore is a mineral or combination of minerals from which useful substances, such as metals, can be economically recovered.

  • Valuation of Aggregate Operations for Banking Purposes ...

    In all cases, it must be determined if the subject''s mineral reserves are an integral part of the subject value – like good soil is important to farming and frontage is important to a commercial land use, profitable access and use of the mineral is the key to the value

  • Mineral Resource Reporting

     · The CIM Definition Standards on Mineral Resources and Reserves introduced definitions and guidance for the public disclosure of mineral resources and mineral reserves and mining studies used in Canada by Canadian public reporting mining companies, whether their deposits are in Canada or elsewhere in the world.

  • Ore Reserve Calculation

     · This is the one of method for calculation of reserve of ore .

  • Valuation Methods of Mineral Resources (Estrella Domingo)

    Valuation Methods of Mineral Resources Limitations of the user cost method: ¾In order to calculate the user costs, several assumptions are needed ¾Thecurrent level of receipts is held constant during the lifetime of the resource ¾rate of extraction is also held constant until the final exhaustion of the resource ¾assumesa constant discount ...

  • Mining & Investing: Valuing a Company | Avoid Glasses ...

    There is going to be wide differences in the Enterprise value per ounce of different companies. One of the key factors behind these differences is the certainty of the resources and reserves a company holds. The greater the percentage of their resource that is in the category of Reserve the better.

  • How to Determine Mineral Rights Value

     · To calculate mineral rights value, multiply the 12-month trailing cash flow by 3. For a property with royalty rights, a 5X multiple provides a more accurate valuation . US dollar per ounce method. The US dollar per ounce method estimates the in situ mineral reserves.

  • Valuation of Mineral Resources in Selected Financial and ...

    A mineral resources reporting system most commonly observed by resource companies is the JORC Code. Created in Australia and widely recognized in many other countries which clearly restricts itself only to solid minerals [4], thus leaving oil & gas outside it''s scope. Even in Australia a separate Petroleum Resources Man-

  • How to Calculate the Reserve Life Index | Bizfluent

     · The reserve life index measures the length of time it will take to deplete a resource. The RLI often is used to measure how long a well or mine will last, such as for oil, natural gas or minerals. Typically, the higher the RLI, the higher the quality of the asset. For example, an oil well with a …


     · 1. Area = Area of Resulting polygon. 2. Volume = Area x Average depth of drillhole. 3. Tonnage = Volume x tonnage factor. Determining the Value. Value is dependent on the ore grade and therefore the average grade of the polygons are then used to establish the grades of each polygon.

  • Ore Reserve Estimation Method

     · Estimates of the tonnage and average grade of ore deposits (ore-reserve estimates) are made for various purposes. They may be made by examining engineers as a basis for placing a value on a mining property in connection with reports on behalf of owners or vendors, on the one hand, or for prospective purchasers or lessees, on the other.

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