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The gold production guidance is based on the Company's mineral reserves but includes contingencies and assumes metal prices and foreign exchange rates that are different from those used in the reserve .

ASSORE MINERAL RESOURCES AND RESERVES REPORT 2014 PAGE 2 Mineral Resources and Reserves report continued The following Competent Persons were involved in the calculation of Mineral Resources and Reserves:

What is the JORC Code? The Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves ('the JORC Code') is a professional code of practice that sets minimum standards for Public Reporting of minerals Exploration Results, Mineral Resources and Ore Reserves.

Coal Terminology: Resource & Reserve Last Modified: 25th September 2012 . most estimates of the reserves to production ratio, a simple calculation of how long we could use coal at the current rate, . For reference, strip mining is limited to extracting coal up to a few hundred feet and underground mining is currently limited to around 3500 ft.

Carlson Surface Mining For complex surface mining design and techniques with precise scheduling and timing. The Carlson Surface Mining module enables users to find the most efficient mine design by testing layouts in plan, section and 3D view.

A Critique of Valuation Methods for Exploration Properties And Undeveloped Mineral Resources Ian S. Thompson, B.A. (Hons), P. Eng., President . Mining and Metallurgy for a Review of Approaches to Valuation of Mineral Properties, as recommended by the . (mining reserves), and for which a detailed pre-feasibility or a feasibility study has .

If a mining company of interest has a mineral resource/reserve containing gold and/or silver, GoldMinerPulse also tracks copper, lead, moybdeynm, zinc and other metals, as presented in the technical reports documenting the gold and silver resources/reserves.

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,

Probable reserve . 1995 -his new classification system is compatible with the recommendations made by the j Hoc Committee on Mineral ResourcelReserve Classification of the Canadian Institute of Mining.87 Percentage Ownership Possible Reserves 12. 2.59 80 Resources (rhousand ronnes) (in addirion ro Reserves) Me:lSured Resources Indicated .

mineral ore reserve case 3 When two holes in the prism have a zero value, the average thickness becomes a/3, and the tonnage of ore and tonnage of copper is found by treating the entire prism as a .

Mining reserves are commonly expressed by tonnage and grade. The former is obtained by measurement of volume and density and the . As an example of the calculation of mineral-volumetric grade from metal-mass grade suppose the data are: Density of native gold 16.5 gcm-3

The main mining valuation methods in the industry include price to net asset value P/NAV, price to cash flow P/CF, total acquisition cost TAC & EV/Resources. The best way to value a mining asset or company is to build a discounted cash flow (DCF) model that takes into account a mine plan produced in a technical report

To better understand reserves estimation, a few important terms require definition. Original oil in place ( OOIP original oil in place ) and original gas in place ( OGIP original gas in place ) refer to the total volume of hydrocarbon stored in a reservoir prior to production.

Use Carlson Geology to manage drillhole data, plus calculate strata models, block models, quantities and qualities. The process from importing drillholes, validating the data and modeling the ore to reserve calculations is seamless.

A second subchapter characterizes resources and reserves to give readers' clear understanding of important differences between a mineral resource and a mineral reserve .

Excel spreadsheets for calculating mineral formulas for specific minerals are collected here. Generic Formula Spreadsheet (Excel 25kB Mar21 08) --Use this version if Fe +3 analyses are available, or if FeO = FeO total (ignoring the possibility of presence of Fe +3 ); normalize to oxygen per formula unit for the mineral of interest.

reserve is a mineral deposit that can be economically and legally mined at the time of the reserve determination. . Your reserves: What are they worth? JUNE 2004. serves are probable, and additional drilling . meaningful calculation for a mine owner.

That means, for reserve reporting purposes (see It's Not that Simple: Mining 101), we have reduced the size of our economic ore down to 94% of our original tonnage. While we have reduced the tonnage above the cut-off by removing the uneconomical 6% of ore, the remaining average grade will have increased as the lower grade is no longer included.

INTRODUCTION TO MINING . The ability to use mineral resources as a means of creating wealth opens the possibility that a given country or countries will attempt to control the entire market in a particular mineral,that is,to create an economic cartel in that mineral. In 1973,the

Mineral Reserve Estimation In The Real World 1. CIM Los Andes – September 21, 2009 Mineral Reserve Estimation in the Real World: A Review of Best Practices and Pitfalls Marcelo Godoy, Ph.D. Ore Evaluation Services Golder Associates

Calculation of Reserves and Resources. The reserves and resources are calculated by identifying the area of land within which the geological deposit occurs and within any planning or other constraints such as set backs or easements etc. Regard needs to be had to the ownership of the minerals which can change depending upon the geology.

This is based on the quality and quantity of the reserves and resources held by the company. This page will deal with EV, and we will illustrate this with charts shortly, after a comment about net present value. . "The only reasonable way to evaluate a mining company is to look at the net present value of the potential future cash flow .

Surface Mine Pit Design and Reserves Webinar: This webinar is presented by Grant Wenker, and was originally broadcast on Jan 10, 2008. Learn how Carlson Mining helps design complex surface mines as well as schedule equipment timing with Grant Wenker, Carlson Mining Software Sales and Support.

Geostatistical Ore Reserve Estimation By :MICHEL DA VID' and ROGER A. BLAlSt SYNOPSIS Matheron', geoslalislical method (or the estimation of ore reserves has .

Basic Principles of Ore Reserve Calculation Sample Weighting Mining Dilution Calculation by Polygons Cutoff Grade Calculation. 2 Tonnage Factor The tonnage factor provides the mechanism for the conversion from volume of ore to weight of ore.

SOUTH AFRICA - MINING AND PETROLEUM ROYALTIES - THE IMPOSITION AND CALCULATION By BETSIE STRYDOM (Director in the Tax Practice of the Corporate Department of BOWMAN GILFILLAN) The imposition of mineral and petroleum royalties ("mining royalties") in South Africa

ESTIMATION OF MINERAL RESOURCES And MINERAL RESERVES BEST PRACTICE GUIDELINES Committee Members Paul Bankes - Teck Cominco Limited, Vancouver.

June 2014 31 Mineral Resource & Ore Reserve Estimation Reporting Mineral Resources and Ore Reserves – how confident are we? by Mark Noppé FAusIMM(CP), Principal Consultant, Xstract Mining .

Nov 05, 2014 · Ore deposit is a natural concentration of one or more minerals within the host rock. 🔴 Subscribe: bit.ly/2xcAZYW About World Earthquakes: World Earthquakes is a non-profit, non .

The course is aimed at geologists, mining engineers, surveyors, geostatisticians, and any other professionals dealing with the estimation of resources/reserves in a mining context. Dr. .

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