Автор: Jean-Michel Rendu Название: Risk Management in Evaluating Mineral Deposits ISBN: 0873354486 ISBN-13(EAN): 9780873354486 Издательство: Mare Nostrum (Eurospan) Рейтинг: Цена: 18434.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
Don�t invest in a mining project until you�ve read Risk Management in Evaluating Mineral Deposits.
Mining is not for the fainthearted. Yes, the rewards are enormous. But so are the risks�and consequences�of failure. Risk Management in Evaluating Mineral Deposits walks you through the many-faceted risk evaluation you need to conduct before you invest your hard-earned dollars.
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. Looking at a host of issues�the composition of the ore deposit, the management�s previous record, the quality of the information at hand, and your own risk-tolerance comfort level, to name a few�author Jean-Michel Rendu provides a comprehensive guide to determine when to invest with high confidence, when to demand a plan that reduces the risks and increases the chances of a positive outcome, and when to just walk away.
This book will have relevance for many years. Unlike others, Rendu factors in not just financial but environmental and social aspects to evaluate the triple bottom line. He shows you why your project needs a different evaluator for each of these three legs and how to combine their evaluations to make one decision. As more and more government agencies and communities insist on these types of metrics, this focus will help keep you up-to-date in a rapidly changing world and increase the possibility that your investment will generate profits even in this complex, uncertain, and time-constrained industry.
Описание: The diamond is the hardest natural substance known. It is found in a type of igneous rock known as kimberlite. The diamond itself is essentially a chain of carbon atoms that have crystallised. The stones unique hardness is a result of the densely concentrated nature of the carbon chains. Like other igneous rocks, kimberlite was formed over the course of thousands of years by volcanic action that occurred during the formation of the earths crust. It is thought that diamonds were first discovered in India about 6,000 years ago in the riverbeds of the region. India was the only known source of the rocks for over a thousand years, until they were unearthed in Borneo around A.D. 600. During the Middle Ages, the diamond was overshadowed by some of the more colourful gems like the ruby and emerald. In the 18th century, diamond deposits were discovered in Brazil in small quantities, and later in Australia, Russia, and the United States. Block caving is the most commonly used method in excavating diamonds from kimberlite deposits. This method offers the highest yield and thus is the most cost effective. In the crushing operation, which occurs in the below-ground mining facilities, large chunks of kimberlite are broken up into more easily transportable segments. Diamonds will continue to be used in industry and hightechnology enterprises, but synthetically produced facsimiles -- first manufactured in 1953 -- may accomplish some of the tasks originally the exclusive province of the real stone. These "manufactured" gems have the same properties of hardness and durability, and while they will never be as popular as the real diamond for adomment purposes, they are well suited for industrial applications. This book provides comprehensive overview on origin, exploration, and history of diamond.
Автор: Haldar, S. K. Название: Platinum-Nickel-Chromium Deposits ISBN: 0128020415 ISBN-13(EAN): 9780128020418 Издательство: Elsevier Science Рейтинг: Цена: 14820.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Platinum-Nickel-Chromium Deposits: Geology, Exploration, and Reserve Base is the first reference book to combine information on the discovery of numerous minerals within existing deposits. This book recognizes the close affinity and great natural coexistence of platinum, palladium, chromium, nickel, copper, gold, and silver hosted by unique stratigraphy (mafic-ultramafic intrusive of layered ingenious complex) in a diverse structural set up. The chapters are organized in a logical sequence of introductory physical and chemical properties, demand-supply scenario, price trend, substitution-recycling and uses of these metals, stratigraphy and host rocks, geochemistry, global distribution of existing deposits in six mega continents, genetic system, reserves-resources overview, common characteristic features aiding as exploration guides for new targets, hazards, and sustainable development. This reference book is a must for students, research scholars, teachers, and professional explorers in economic geology, geography, and allied subjects.
Автор: Ulrich Kretschmar Название: The Metallogeny of Lode Gold Deposits ISBN: 0128032227 ISBN-13(EAN): 9780128032220 Издательство: Elsevier Science Рейтинг: Цена: 22233.00 р. Наличие на складе: Поставка под заказ.
Описание: The Metallogeny of Lode Gold Deposits: A Syngenetic Perspective is a synthesis of lode gold vein forming processes, addressing the commonality in similar worldwide deposits. The book’s empirical model incorporates widely known and accepted principles of ore deposition and shows how it applies in the volcanic-sedimentary greenstone belt environment. Several chapters detail outcrop maps and photos of field occurrences and textures. The interpretations flow directly from the authors’ field work, and are coupled with analyses of underlying physical processes. Utilizing detailed geological mapping, field work, and chemical analyses as the basis of a syngenetic formation mode, the text arms readers with the tools necessary to accurately analyze and interpret new data on the subject. This includes information on decoding the significance of asymmetry in vein formation, as well as the role of lamprophyres in gold camps, how Archean geology requires integration into a lode vein formation model, and how to develop an understanding of the worldwide applicability of gold cycles to lode vein formation and exploration and how it can be applied to deposits of all ages.
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