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Quantification Of Risks Associated With Mineral Deposit Evaluation Based On Drillhole Data
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Book Synopsis Quantification of Risks Associated with Mineral Deposit Evaluation Based on Drillhole Data by : E. Adjei Owusu
Download or read book Quantification of Risks Associated with Mineral Deposit Evaluation Based on Drillhole Data written by E. Adjei Owusu and published by . This book was released on 1999 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mineral Deposit Evaluation by : A.E. Annels
Download or read book Mineral Deposit Evaluation written by A.E. Annels and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although aspects of mineral deposit evaluation advantages and disadvantages of each technique are covered in such texts as McKinstry (1948), so that a judgement can be made as to their Peters (1978), Reedman (1979) and Barnes applicability to a particular deposit and the min (1980), no widely available in-depth treatment of ing method proposed or used. Too often, a lack the subject has been presented. It is thus the of this expertise results in the ore-reserve calcula intention of the present book to produce a text tion being undertaken at head-office or, indeed, by the survey department on the mine, and being which is suitable for both undergraduate and treated as a 'number crunching' or geometric postgraduate students of mining geology and exercise divorced from geology. It is essential mining engineering and which, at the same time, that mine ore-reserves are calculated at the mine is of use to those already following a professional by those geologists who are most closely associ career in the mining industry. An attempt has ated with the local geology and who are thus best been made to present the material in such a way able to influence and/or constrain the calculation.
Book Synopsis An Integrated Risk Evaluation Model for Mineral Deposits by : Grant Nicholas
Download or read book An Integrated Risk Evaluation Model for Mineral Deposits written by Grant Nicholas and published by . This book was released on 2014 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: The core asset of most mining companies is its mineral resources and reserves. The company produces ore from its reserves, which is a subset of its mineral resources associated with varying levels of geoscientific confidence and uncertainty. One of the key evaluation challenges is to distil technical complexity into a financial model that is usually designed to focus only on one or two key valuation indicators, such as net present value (NPV) or internal rate of return (IRR). The driver behind this research was whether conventional evaluation techniques for mineral projects can evaluate accurately both the spatial and temporal characteristics of project risks in financial terms, due to their inherent nature to understate the true variance, and under-value or over-value the actual NPV. How can conventional evaluation methods be compared to an innovative, integrated evaluation technique that quantifies the non-linear impacts of spatial resource variables on production constraints in financial terms, measured at the appropriate temporal scale? To answer these questions, this research focused on developing an innovative risk evaluation methodology for two different diamond deposits and one gold deposit to incorporate spatial, non-spatial and financial data across the evaluation pipeline. The author developed an integrated evaluation modelling (IEM) framework based on a unique bottom-up methodology that follows every estimation block through the mining and processing value chain, i.e., it accurately captures the spatial variability of all relevant value chain variables in the ground and their correlated impacts on production constraints such as grade, density and processing characteristics. This variability is propagated through the processing value chain at a mining block (or selective mining unit, "SMU") scale. The IEM approach revealed differences in NPV between a 'bottom-up' (or Local) evaluation method and a 'top-down' (or Global) evaluation method - see Figure 1. While the actual NPV for the virtual ore body (VBod) was CAD 2.1 million, the figure shows that the local evaluation method (bottom-up) more closely approximated the actual NPV of the project than the global (top-down) evaluation method, which materially over-estimated the NPV. The author demonstrated that cash flow constituents derived from annual estimates in a top-down approach will not correctly reflect the asymmetries due to operational variability on a local, daily basis. The 'bottom-up' evaluation method represented a more accurate way of deriving annual cash flow estimates needed to make decisions on projects by accumulating the appropriate values from a bottom-up approach, i.e. daily, monthly, quarterly then derive annual estimates for NPV forecasts. The two main advantages of the IEM methodology are that firstly, it accurately reproduces the spatial resource characteristics of blocks at the appropriate temporal scale; and secondly, direct linkages are created between the resource-reserve-financial models within a single software environment. This allows multiple scenarios to be rapidly assessed for a mineral project and the cost/benefits of implementing risk mitigation strategies to be easily evaluated. This research also quantifies the financial impact of managerial flexibilities by evaluating selected hedging strategies that simultaneously consider production and economic uncertainties within an IEM framework. All modelled outputs are calculated in NPV terms using a modified DCF approach. The importance of linkages within an IEM framework is validated between unsystematic risks, with respect to key resource-to-reserve stochastic variables, and systematic risks considering the impact of foreign exchange rates. The author concludes that the greater the variability of key systematic and unsystematic variables, the more the mine has to consider flexibility in its mining and processing schedules and management hedging strategies; but the real costs of attaining that flexibility needs to be evaluated using an IEM framework. The confidence in a NPV estimate for complex mineral projects cannot easily be quantified using any closed-form analytical or mathematical solution. Complex, non-linear relationships between resources, reserves, financial and economic parameters requires a simulation model based on an IEM framework to provide a robust solution.
Author :Friedrich-Wilhelm Wellmer Publisher :Springer Science & Business Media ISBN 13 :3642602622 Total Pages :388 pages Book Rating :4.6/5 (426 download)
Book Synopsis Statistical Evaluations in Exploration for Mineral Deposits by : Friedrich-Wilhelm Wellmer
Download or read book Statistical Evaluations in Exploration for Mineral Deposits written by Friedrich-Wilhelm Wellmer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Statistical evaluations of exploration data are the basis for decisions to be made at various stages of an exploration project. In contrast to other geostatistical books, Statistical Evaluations in Exploration for Mineral Deposits focuses not only on theory, but examples are also given, frequently originating from experience in mineral exploration by the author who worked worldwide for a mining company. Together with its companion volume, Economic Evaluations in Exploration, the book illustrates methods used in exploration campaigns and mining activities. It is intended as a vademecum for geologists who are forced to make quick decisions regarding an exploration project. It also addresses scientists and students involved in teaching or in mineral economic evaluations, recommendations or decisions.
Book Synopsis Ore Reserve Estimation and Strategic Mine Planning by : Roussos Dimitrakopoulos
Download or read book Ore Reserve Estimation and Strategic Mine Planning written by Roussos Dimitrakopoulos and published by Springer. This book was released on 2015-11-15 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mining business faces continual risks in producing metals and raw materials under fluctuating market demand. At the same time, the greatest uncertainty driving the risk and profitability of mining investments is the geological variability of mineral deposits. This supply uncertainty affects the prediction of economic value from the initial valuation of a mining project through mine planning, design and production scheduling. This book is the first of its kind, presenting state-of-the-art stochastic simulation and optimization techniques and step-by-step case studies. Quantification of geological uncertainty through new efficient conditional simulation techniques for large deposits, integration of uncertainty to stochastic optimization formulations for design and production scheduling and the concurrent management of risk are shown to create flexibility, options and oportunities, increase asset value, cashflows and return on investment. New approaches introduced include resource/reserve risk quantification, cost-effective drilling programs, pit design and long-term production scheduling optimization with simulated orebodies, ore reserve classification, geologic risk discounting, waste managing and demand driven scheduling, risk assessment in meeting project production schedules ahead of mining, risk based optimal stope design, options valuation when mining. Applications include commodities such as gold, copper, nickel, iron ore, coal and diamonds.
Book Synopsis Mineral Resource and Ore Reserve Estimation by : A. C. Edwards
Download or read book Mineral Resource and Ore Reserve Estimation written by A. C. Edwards and published by . This book was released on 2001 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mineral Deposit Evaluation by : A.E. Annels
Download or read book Mineral Deposit Evaluation written by A.E. Annels and published by Springer. This book was released on 2005-08-05 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although aspects of mineral deposit evaluation advantages and disadvantages of each technique are covered in such texts as McKinstry (1948), so that a judgement can be made as to their Peters (1978), Reedman (1979) and Barnes applicability to a particular deposit and the min (1980), no widely available in-depth treatment of ing method proposed or used. Too often, a lack the subject has been presented. It is thus the of this expertise results in the ore-reserve calcula intention of the present book to produce a text tion being undertaken at head-office or, indeed, by the survey department on the mine, and being which is suitable for both undergraduate and treated as a 'number crunching' or geometric postgraduate students of mining geology and exercise divorced from geology. It is essential mining engineering and which, at the same time, that mine ore-reserves are calculated at the mine is of use to those already following a professional by those geologists who are most closely associ career in the mining industry. An attempt has ated with the local geology and who are thus best been made to present the material in such a way able to influence and/or constrain the calculation.
Author :Jean-Michel Rendu Publisher :Society for Mining, Metallurgy, and Exploration, Incorporated ISBN 13 :9780873354486 Total Pages :0 pages Book Rating :4.3/5 (544 download)
Book Synopsis Risk Management in Evaluating Mineral Deposits by : Jean-Michel Rendu
Download or read book Risk Management in Evaluating Mineral Deposits written by Jean-Michel Rendu and published by Society for Mining, Metallurgy, and Exploration, Incorporated. This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by a mining professional with a strong background in technical and financial studies, risk assessment, and statistics, this book provides a detailed suite of tools so you can determine whether investing in a mining project makes sense for you. Jean-Michel Rendu provides a comprehensive guide to determine when to invest, when to demand a plan that reduces the risks, and when to just walk away.
Book Synopsis Mining goes Digital by : Christoph Mueller
Download or read book Mining goes Digital written by Christoph Mueller and published by CRC Press. This book was released on 2019-05-22 with total page 759 pages. Available in PDF, EPUB and Kindle. Book excerpt: The conferences on ‘Applications for Computers and Operations Research in the Minerals Industry’ (APCOM) initially focused on the optimization of geostatistics and resource estimation. Several standard methods used in these fields were presented in the early days of APCOM. While geostatistics remains an important part, information technology has emerged, and nowadays APCOM not only focuses on geostatistics and resource estimation, but has broadened its horizon to Information and Communication Technology (ICT) in the mineral industry. Mining Goes Digital is a collection of 90 high quality, peer reviewed papers covering recent ICT-related developments in: - Geostatistics and Resource Estimation - Mine Planning - Scheduling and Dispatch - Mine Safety and Mine Operation - Internet of Things, Robotics - Emerging Technologies - Synergies from other industries - General aspects of Digital Transformation in Mining Mining Goes Digital will be of interest to professionals and academics involved or interested in the above-mentioned areas.
Book Synopsis SME Mining Engineering Handbook, Third Edition by : Peter Darling
Download or read book SME Mining Engineering Handbook, Third Edition written by Peter Darling and published by SME. This book was released on 2011 with total page 1912 pages. Available in PDF, EPUB and Kindle. Book excerpt: This third edition of the SME Mining Engineering Handbook reaffirms its international reputation as "the handbook of choice" for today's practicing mining engineer. It distills the body of knowledge that characterizes mining engineering as a disciplinary field and has subsequently helped to inspire and inform generations of mining professionals.Virtually all of the information is original content, representing the latest information from more than 250 internationally recognized mining industry experts. Within the handbook's 115 thought-provoking chapters are current topics relevant to today's mining professional: Analyzing how the mining and minerals industry will develop over the medium and long term--why such changes are inevitable, what this will mean in terms of challenges, and how they could be managed Explaining the mechanics associated with the multifaceted world of mine and mineral economics, from the decisions associated with how best to finance a single piece of high-value equipment to the long-term cash-flow issues associated with mine planning at a mature operation Describing the recent and ongoing technical initiatives and engineering developments in relation to robotics, automation, acid rock drainage, block caving optimization, or process dewatering methods Examining in detail the methods and equipment available to achieve efficient, predictable, and safe rock breaking, whether employing a tunnel boring machine for development work, mineral extraction using a mobile miner, or cast blasting at a surface coal operation Identifying the salient points that dictate which is the safest, most efficient, and most versatile extraction method to employ, as well as describing in detail how each alternative is engineered Discussing the impacts that social and environmental issues have on mining from the pre-exploration phase to end-of-mine issues and beyond, and how to manage these two increasingly important factors to the benefit of both the mining companies and other stakeholders
Book Synopsis Mineral Resources by : Manuel Bustillo Revuelta
Download or read book Mineral Resources written by Manuel Bustillo Revuelta and published by Springer. This book was released on 2017-08-23 with total page 663 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive textbook covers all major topics related to the utilization of mineral resources for human activities. It begins with general concepts like definitions of mineral resources, mineral resources and humans, recycling mineral resources, distribution of minerals resources across Earth, and international standards in mining, among others. Then it turns to a classification of mineral resources, covering the main types from a geological standpoint. The exploration of mineral resources is also treated, including geophysical methods of exploration, borehole geophysical logging, geochemical methods, drilling methods, and mineral deposit models in exploration. Further, the book addresses the evaluation of mineral resources, from sampling techniques to the economic evaluation of mining projects (i.e. types and density of sampling, mean grade definition and calculation, Sichel’s estimator, evaluation methods – classical and geostatistical, economic evaluation – NPV, IRR, and PP, estimation of risk, and software for evaluating mineral resources). It subsequently describes key mineral resource exploitation methods (open pit and underground mining) and the mineral processing required to obtain saleable products (crushing, grinding, sizing, ore separation, and concentrate dewatering, also with some text devoted to tailings dams). Lastly, the book discusses the environmental impact of mining, covering all the aspects of this very important topic, from the description of diverse impacts to the environmental impact assessment (EIA), which is essential in modern mining projects.
Book Synopsis Prediction of Local Uncertaintly for Resource Evaluation by : Eric Butler Daniels
Download or read book Prediction of Local Uncertaintly for Resource Evaluation written by Eric Butler Daniels and published by . This book was released on 2015 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: Resource evaluation of a mineral deposit is an important and challenging task. Traditional estimation methods provide a best estimate at the block scale based on available data. The pitfalls of histogram smoothing and conditional bias associated with these methods are well known. Quantifying local uncertainty is an alternative to estimation that avoids these issues. Multiple methods have been established for quantifying local uncertainty and are presented here. This thesis explores the local dependence of change of support methods as well as improves upon available post processing techniques associated with quantifying uncertainty for resource evaluation. Change of support parameters are examined through a simulation test. The advertised benefits and issues surrounding localization of uncertainty are evaluated and a flexible methodology for localization is demonstrated. Artifact reduction techniques are provided for improved localization when a single model is required. Lastly, a case study demonstrates practical implementation of geostatistical methods and post-processing for modeling block scale uncertainty and resource evaluation.
Book Synopsis Mineral Resource Estimation by : Mario E. Rossi
Download or read book Mineral Resource Estimation written by Mario E. Rossi and published by Springer Science & Business Media. This book was released on 2013-12-21 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mineral resource estimation has changed considerably in the past 25 years: geostatistical techniques have become commonplace and continue to evolve; computational horsepower has revolutionized all facets of numerical modeling; mining and processing operations are often larger; and uncertainty quantification is becoming standard practice. Recent books focus on historical methods or details of geostatistical theory. So there is a growing need to collect and synthesize the practice of modern mineral resource estimation into a book for undergraduate students, beginning graduate students, and young geologists and engineers. It is especially fruitful that this book is written by authors with years of relevant experience performing mineral resource estimation and with years of relevant teaching experience. This comprehensive textbook and reference fills this need.
Book Synopsis Geostatistics Notes for Practitioners by : Glen Nwaila
Download or read book Geostatistics Notes for Practitioners written by Glen Nwaila and published by CRC Press. This book was released on 2024-08-20 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a practical perspective of all the processes involved in estimating mineral resources and reserves, including mine-to-mill reconciliation. It provides an integrated step-by-step explanation of processes for performing each step, including insight from academic and industry practitioners. Each chapter details a specific aspect of the estimation processes in a practical manner. It contains examples and case studies to illustrate the practical application of geostatistics in mineral resource estimation, mineral reserve conversion, and reconciliation. Features Provides a step-by-step guide with over 10,000 lines of Python code for hands-on demonstration, from start to finish, for both linear and non-linear geostatistical methods. Explains practical geostatistics processes and functionality. Simplifies explanation of mathematical /statistical concepts and application. Discusses generalised examples to aid the process steps. Reviews processes involved in the mineral resources’ estimation and ore reserve conversion. This book is intended for third-year and postgraduate students in Mineral Resources Management, Geology, Spatial Statistics, and Mining Engineering, as well as practising professionals.
Book Synopsis Open Pit Mine Planning and Design, Two Volume Set, Second Edition by : William A. Hustrulid
Download or read book Open Pit Mine Planning and Design, Two Volume Set, Second Edition written by William A. Hustrulid and published by CRC Press. This book was released on 2006-04-20 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Outstanding textbook designed for courses in surface mine design, open pit design, geological excavation engineering and in advanced open pit mine planning and design. The step-by-step introduction to mine design and planning enables a fast-path approach to the matter by undergraduate and graduate students. The excellent, user-friendly software guides the student through the planning and design steps, and the drillhole data sets allows the student to practice the described principles in diverse mining properties case examples. The large number of illustrative examples and case studies, together with the exercises and the reference lists at the end of each chapter, provide the student with all the material needed to study effectively the theory and application methods of open pit mine planning and design. Volume 1 deals with the fundamental concepts involved in the planning and design of open pit mines. Subjects covered are mine planning, mining revenues and costs, orebody description, geometrical considerations, pit limits, production planning, mineral resources and ore reserves, and responsible mining. Volume 2 deals with CSMine, a user-friendly mine planning and design software that was developed specifically to illustrate the principles involved when applied in practice. It includes CSMine software, a CSMine tutorial, a user’s guide and various orebody case examples. Although intended as student course material, many practitioners have used it as a practical reference guide.
Book Synopsis Mineral Exploration by : Swapan Kumar Haldar
Download or read book Mineral Exploration written by Swapan Kumar Haldar and published by Elsevier. This book was released on 2018-07-14 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mineral Exploration: Principles and Applications, Second Edition, presents an interdisciplinary approach on the full scope of mineral exploration. Everything from grass root discovery, objective base sequential exploration, mining, beneficiation, extraction, economic evaluation, policies and acts, rules and regulations, sustainability, and environmental impacts is covered. Each topic is presented using theoretical approaches that are followed by specific applications that can be used in the field. This new edition features updated references, changes to rules and regulations, and new sections on oil and gas exploration and classification, air-core drilling, and smelting and refining techniques. This book is a key resource for both academics and professionals, offering both practical and applied knowledge in mineral exploration. Offers important updates to the previous edition, including sections on the cyclical nature of mineral industry, exploration for oil and gas, CHIM-electro-geochemical survey, air-core drilling, classification of oil and gas resources, smelting, and refining technologies Presents global case studies that allow readers to quickly apply exploration concepts to real-world scenarios Includes 385 illustrations and photographs to aid the reader in understanding key procedures and applications
Book Synopsis Evolutionary and Revolutionary Technologies for Mining by : National Research Council
Download or read book Evolutionary and Revolutionary Technologies for Mining written by National Research Council and published by National Academies Press. This book was released on 2002-03-14 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Office of Industrial Technologies (OIT) of the U. S. Department of Energy commissioned the National Research Council (NRC) to undertake a study on required technologies for the Mining Industries of the Future Program to complement information provided to the program by the National Mining Association. Subsequently, the National Institute for Occupational Safety and Health also became a sponsor of this study, and the Statement of Task was expanded to include health and safety. The overall objectives of this study are: (a) to review available information on the U.S. mining industry; (b) to identify critical research and development needs related to the exploration, mining, and processing of coal, minerals, and metals; and (c) to examine the federal contribution to research and development in mining processes.