§16§§This fully updated textbook is intended for the economic geologist who deals with the evaluation of deposits at an early stage of development. It offers rules for quick and easy calculations based on the application of approximate data. It provides both the student and the geologist in the field with a complete set of rules and methods enabling them to perform a quick initial evaluation of the deposit without the support of specialists or computers - even if he is left to his own resources. All rules for calculations are illustrated with examples, and mistakes and pitfalls the authors encountered during their careers are pointed out.§ §04§Conversions.- First Estimates of Grade and Tonnages and Potential Grade and Tonnages.- Dealing with Data of Multi-Element Deposits.- Conversion of Geological Data into Mining Data for Ore Deposits.- to Economic Evaluations.- Metal Prices.- Calculation of the Net Smelter Return (NSR) of a Mine.- Production Lifetime.- Calculation of Cost Data.- Additional Economic Planning Methods.- Economic Evaluations.- Quantitative Valuation of Exploration Projects without Known Mineralization.- Comparison of Deposits.- Calculating Growth Rates.- Equity Calculations. §13§§From the reviews of the second edition:§ §§ §"This textbook is designed for economic geologists who deal with the evaluation of deposits at an early stage of development. ... the book contains a useful list of references and a number of appendices, including tables, graphs, mathematical formulae, and internet addresses. ... is a handy reference for practitioners and a useful textbook for students." (Jean-Michel Rendu, Economic Geology, Vol. 103, 2008)§ §"The textbook is intended for the economic geologist who deals with the evaluation of deposits at an early stage of development. ... It provides both the student and the geologist in the field with a complete set of rules and methods enabling them to perform a quick initial evaluation of the deposit without the support of specialists or computers ... . The case histories, exercises, metal prices and terminology, especially concerning 'reserves and resources', have been fully updated in this second edition." (G §13§lückauf, Vol. 145 (6), July, 2009)§ §02§ed as an exploration geologist, project manager and consultant in many countries. Wagner is a geologist and industrial engineer and holds a doctorate in mineral economics.§
