The geostatistical block estimates are displayed, assessed visually and a comparison of the. Reserve estimation free download as powerpoint presentation. Pdf ore reserve and mineral resource estimation methods. Blalst synopsis matheron, geoslalislical method or the estimation of ore reserves has been developed to the point al which reallife problcllll may be handled effectively.
Uncertainty in resource estimation affects longterm development, planning, and in vestment decisions. In general, it was found that the most widely used method of mineral reserve estimation was the crosssectional method, although the industry is making increased use of geostatistical. Pdf computer aided ore body modelling and mine valuation. The possible reserve have the following characteristics. Reserve estimation tonnage density free 30day trial scribd. Conventional and computer aided ore reserve estimation ijetsr. The questionnaire solicited information on such items as drillhole spacings, mineral reserve estimation methods used, sampling and assaying practices, etc.
Ore block tonnage dilution averages and gold loss estimates. Some classical reserve estimation techniques such as triangulation and. Estimation practices for reserves of gold deposits. Consider this regular drill pattern spaced 30m by 20m of high grade at minetechpg copper deposit. Cross section method is another type of conventional estimation techniques in which normally a series of cross sections are constructed to the. Sinclair and m vall6e the canadian institute of mining and metallurgy. After reading the book, you should be able to refer to more challenging books with confidence and develop a greater insight into. Ore reserve estimation techniques by cross section method. The methods of sampling and ore reserve estimating used can fall into. Since the method of constructing these figures also affects the calculations of ore grade, this subject will be discussed further under the caption, estimation of grade of ore.
Purchase geostatistical ore reserve estimation 1st edition. Mineral resources estimation with data and parameter uncertainty. Annual mineral resource and ore reserve statement gold road. There are nine drill holes ranging from ddh 1 to ddh 9.
Assuming the surface is flat and faultsdiscontinuities terminate the continuity of the deposit in which the drill holes define the boundary of the orebody, determine as accurately as possible the tonnage and grade of the deposit using polygon. Reserve estimation tonnage density free 30day trial. Reserve estimation an overview sciencedirect topics. All field logging is carried out on tough books using logchief data capture. The grade estimate of a possible reserve is a broad indication of the likely quality. The volumetric accuracy of the model is crucial in valuation of an ore deposit. The possible reserve contains only very general information on the mode of occurrence of geological structure and ore behavior. Ore reserve and mineral resource estimation methods current practices and comparisons conference paper pdf available september 2003 with 5,774 reads how we measure reads.
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