Sampling Ore And Calculating Tonnage

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Sampling Ore And Calculating Tonnage

2020-11-18T00:11:23+00:00

  • Calculation of Ore Tonnage Grade from Drill hole Samples

    21/01/2016  (4) Multiply this volume by specific weight of ore, which gives total tonnage of ore in minor prism (5) Multiply total tonnage of ore in minor prism by copper per cent, in hole, which gives total tonnage of copper in each minor prism

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  • sampling ore and calculating tonnage

    sampling ore and calculating tonnage Calculation of Ore Tonnage Grade from Drill hole Samples Mar 19, 2017 The orebody on which I used this method contains several hundred million tons of ore, and several systems were used to estimate the copper content, viz, the socalled “standard” method of prism calculation; a planimeter method for obtaining areas, checked by logarithms; the

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  • Sampling Ore And Calculating Tonnage

    Sampling Ore And Calculating Tonnage A sample tree experiment involves splitting at different top sizes followed by comminution and assaying5 Figure 1 shows the sample tree flowsheet Two ores were evaluated via this sampling technique The first sample was a lowgrade gold ore about 5 gt gold mill feed sample from a South African gold mine The particle size was 95 12 mm Get Price PDF

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  • sampling ore and calculating tonnage

    sampling ore and calculating tonnage Sampling of runofmine mill feed— A practical approach A sample tree experiment involves splitting at different top sizes followed by comminution and assaying5 Figure 1 shows the sample tree flowsheet Two ores were evaluated via this sampling technique The first sample was a lowgrade gold ore (about 5 g/t gold) mill feed sample from a South African

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  • Ore Reserve Estimation Method

    24/03/2017  The tonnage in each block of ore is, of course, the volume in cubic feet divided by the cubicfeetperton factor (or similar calculations for metric units) When it comes to actual mining, it often happens that the tonnage is greater and the grade of ore lower than estimated This often is due

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  • sampling ore and calculating tonnage

    Sampling Ore And Calculating Tonnage these are used to compute the production of concentrate in a mill or in a particular circuit the formulas are based on assays of samples, and the results of the calculations are generally accurate— as accurate as the sampling, assaying, and crude ore (or other) tonnage on which they depend Get Price; Geostatistical approach to the

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  • Sampling Ore And Calculating Tonnage

    Sampling Ore And Calculating Tonnage A sample tree experiment involves splitting at different top sizes followed by comminution and assaying5 Figure 1 shows the sample tree flowsheet Two ores were evaluated via this sampling technique The first sample was a lowgrade gold ore about 5 gt gold mill feed sample from a South African gold mine The particle size was 95 12 mm PDF Errors and

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  • CLASSICAL METHODS OF ORE RESERVE ESTIMATION

    02/03/2016  To determine the extent of the deposit, triangles are developed such that sampling points form the apices of the triangles The volume and tonnage of the deposit is then determined using simple geometrical equations 1 Area = Area of Resulting Triange 2 Volume = Area x Average depth of the apice drillholes 3 Tonnage = Volume x tonnage factor

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  • METHODS OF ORE RESERVE ESTIMATIONEXAMPLE

    18/08/2019  To determine the extent of the deposit, triangles are developed such that sampling points form the apices of the triangles The volume and tonnage of the deposit is then determined using simple geometrical equations 1 Area = Area of Resulting Triange 2 Volume = Area x Average depth of the apice drillholes 3 Tonnage = Volume x tonnage factor

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  • Mineral Deposit Value How to Calculate the Potential

    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 resultsMake sure that this data is announced according to the guidelines of National Instrument 43101 (ie approved by a

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  • sampling ore and calculating tonnage

    Advantages Easy to understand; Easy to calculate manually; Easy to use as a repeatable standard; When automated, reasonably fast in 2D; Disadvantages Local discontinuities are unrealistic; Produces biased estimates of grade and tonnage above an ore waste cutoff Sampling of runofmine mill feed— A practical approach

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  • sampling ore and calculating tonnage

    Sampling Ore And Calculating Tonnage these are used to compute the production of concentrate in a mill or in a particular circuit the formulas are based on assays of samples, and the results of the calculations are generally accurate— as accurate as the sampling, assaying, and crude ore (or other) tonnage on which they depend

  • More
  • Sampling Ore And Calculating Tonnage

    Sampling Ore And Calculating Tonnage A sample tree experiment involves splitting at different top sizes followed by comminution and assaying5 Figure 1 shows the sample tree flowsheet Two ores were evaluated via this sampling technique The first sample was a lowgrade gold ore about 5 gt gold mill feed sample from a South African gold mine

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  • methods of calculating tonnage in mining

    Cubical opening method dig up a pit of mxmxm size and weight all the material this weight is tonnage factor for sulphide ore deposit at initial exploration this method is not applicable in case of iron ore , limestone, rock phosphate is applicable in the mining stage normally bulk density is determined by this method conventional density

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  • tonnage calculation in mineral processing

    Sampling Ore And Calculating Tonnage As defined below, confidence level, confidence intervaSee more on ; Common Basic Formulas for Mineral Processing Calculations The degree of dilution of this standard solution by pulp water is ascertained by chemical analysis of solution from a filtered sample, and the tonnage of ore is then calculated from the

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  • methods of calculating tonnage in mining

    30/06/2020  sampling ore and calculating tonnage Calculation of Ore Tonnage Grade from Drill hole Samples The results of carrying out this method through a complete orebody of a large tonnage seem to justify the labor involved therein—the tonnage checks with the standard method to within 1014 per cent—the standard method showed about 55 000 metric tons less

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  • SAMPLING OPTIMIZATION OF A VOLCANO SEDIMENTARY

    l To estimate ore tonnage in heterogeneous blocks 20x20x15 l To sample it by fictitious drillholes l Regular blocks 5x5x5 and calculate ore and metal tonnage as the average of 48 points in blocks 20x20x15 l Fictitious drillholes with composites (2m length) migrated from the

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  • Mineral Deposit Value How to Calculate the Potential

    As you can see in the example above, the deposit does not have to be enormous in size (only 500 meters long by 100 meters wide) to contain a valuable deposit (approximately $6 billion worth of minerals) However, in order to be as realistic as possible about this valuation, you can not assume that the complete ore body contains the same grade (ie 2% copper and 15 gram per

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  • (PDF) Errors and Uncertainty in Mineral Resource and Ore

    An Ore Reserve statement generally contains a single set of grade and tonnage figures without a discussion of the potential inherent errors in these estimates Some sensitivity studies may be run

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  • Types of Sampling: Sampling Methods with Examples

    Cluster sampling: Cluster sampling is a method where the researchers divide the entire population into sections or clusters that represent a population Clusters are identified and included in a sample based on demographic parameters like age, sex, location, etc This makes it very simple for a survey creator to derive effective inference from the feedback For example,

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  • sampling ore and calculating tonnage

    The basic idea is that amortization tonnage is equivalent to the estimated capital costs, including interest, divided by the estimated operating Orereserves by 'Classical Methods' SpringerLinkMcKinstry, H E (1948) Sampling ore and calculating tonnage, in Mining Geology, Prentice Hall, New York, pp 35–39 (680 pp) Google Scholar O'Brian, D T and Weiss, E (1968) Practical aspects of

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  • tonnage calculation in mineral processing

    Sampling Ore And Calculating Tonnage As defined below, confidence level, confidence intervaSee more on ; Common Basic Formulas for Mineral Processing Calculations The degree of dilution of this standard solution by pulp water is ascertained by chemical analysis of solution from a filtered sample, and the tonnage of ore is then calculated from the percentage solid Tonnage

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  • methods of calculating tonnage in mining

    30/06/2020  sampling ore and calculating tonnage methods of calculating tonnage in mining Calculation of Ore Tonnage Grade from Drill hole Samples The results of carrying out this method through a complete orebody of a large tonnage seem to justify the labor involved therein—the tonnage checks with the standard method to within 1014 per cent—the standard method showed about 55

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  • Calculation of Volume and Tonnage of Ore Deposit

    For the calculation of the volume and the tonnage of ore deposits there is a variety of available methods to choose from, each suited for a particular deposit These methods fall into two categories: reserve calculation on the basis of crosssections and on the basis of longitudinal planar sections or level plans respectively Keywords International Atomic Energy Agency Drill Hole Carbon

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  • Variable components of the Mine Call Factor from a surface

    tonnage is less than the tonnage accounted for by the plant This is an indication of losses somewhere along the flow of the ore from the source (underground or surface) to the point where it is to be recovered by the plant Tonnage discrepancies can also be an excess when the surveyors calculated tonnage is greater than the tonnage accounted for by the plant 3 12 Apparent and real losses

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  • SAMPLING OPTIMIZATION OF A VOLCANO SEDIMENTARY

    l To estimate ore tonnage in heterogeneous blocks 20x20x15 l To sample it by fictitious drillholes l Regular blocks 5x5x5 and calculate ore and metal tonnage as the average of 48 points in blocks 20x20x15 l Fictitious drillholes with composites (2m length) migrated from the 5x5x5 blocks Work Flow Collahuasi Project Resource Classification i Uncertainty Assessment related to Geological

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  • Reconciliation Principles for the Mining Industry

    Reconciliation involves the collection of tonnage, grade (quality) and contained metal (product) data from disparate and hopefully independent sources Examples are exploration data, production sampling data from blastholes or drawpoints, and process plant data These data may be compared by means of ratios (factors) The F1 factor usually relates shortterm (ore control) model tonnages

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  • GUIDANCE ON CALCULATION OF TONNAGE OF FE CONTAINED

    As an example, if the total tonnage of Iron, Furnace is 100,000 tonnes and the Fe content 94%, then the tonnage of Fe‐contained to declare is 94,000 tonnes It is appreciated that calculation of the exact tonnage of Fe‐contained can be a time‐consuming and tedious process If this is the case, we suggest that applicable standard product

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  • Sampling practice and theory Mine

    02/08/2014  I have found that it can be useful in sampling, when used by pesonnel that understand the ore, and sampling, The table, above, relates the particle size of the material being sampled to the sample size required for a representative sample As one can see, the finer the material being sampled, the smaller the size of sample required Taken into account is the statistical fact that the finer

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  • Mineral Deposit Value How to Calculate the Potential

    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 resultsMake sure that this data is announced according to the guidelines of National Instrument 43101 (ie approved by a

  • More