What is economic geology? It may be defined as the study of geological bodies and materials that may be useful to mankind. The materials included are fuels, metallic and non-metallic minerals, rocks and water. This book will exclude considerations of water and building materials, and will concentrate on ores and fuels.

Some people may say that economic geology is a subdiscipline within the geological sciences, but this is not strictly correct, for it is unlike other su}?disciplines, such as palaeontology, igneous petrology, structural geology, and so on, which all go to make up the science of geology, for each of these can exist independently. Economic geology cannot exist as a separate discipline, for it has to be based on the broad spectrum of the geological sciences.

The first edition of this book appeared at the end of 1942. Since that time war and post-war readjustment has forcibly demonstrated the extent to which the materials of the mineral kingdom constitute the backbone of industrial life and peace-time economic development of nations. Former bountiful supplies now show serious depletion, and nations of the world are looking farther and farther afield for those miiieral supplies necessary to their subsistence. This book deals with' such mineral deposits, how they are formed, what they are, how and where they occur, and what they are used for. Its chief purpose is as a textbook, designed both for elementary and more advanced courses. The first edition was in demand also as a source of information to all those interested in mineral deposits and in the mineral industry. <...>

There are many critical nodes along the mine value chain, from orebody to mineral product, and inter-disciplinary input is required to analyse the variability and uncertainty at each node in order to identify and mitigate areas of risk.
Mining differs from many other industries in that the variability in the product is dictated largely by the inherent nature of the input material (the orebody).

The purpose of this publication is to make an extended price history for a wide range of metals available in a single document. Such information can be useful for the analysis of mineralcommodity issues, as well as for other purposes. The chapter for each mineral commodity includes a graph of annual current and constant dollar prices for 1959 through 1998, where available; a list of significant events that affected prices; a brief discussion of the metal and its history; and one or more tables that list current dollar prices.

As a recommended practice (RP) of AACE International, the Cost Estimate Classification System provides guidelines for applying the general principles of estimate classification to project cost estimates (i.e., cost estimates that are used to evaluate, approve, and/or fund projects). The Cost Estimate Classification System maps the phases and stages of project cost estimating together with a generic project scope definition maturity and quality matrix, which can be applied across a wide variety of process industries. <...>

It was a bright morning in early 1971. I had been seconded as part of my graduate training course at London stockbrokers James Capel to assist on the mining desk, having expressed an interest in becoming involved in international securities rather than the domestic share market. As the Jesuits say, give us the boy and we will have him for life. My lifetime addiction to mining began that spring day.

In the 1970s, members of the U.S. National Committee on Tunneling Technology (USNCTT) recognized a need to review and improve contracting practices for underground construction. The committee conducted an intensive study and several workshop reviews, ultimately publishing a set of recommended practices in 1974.

Cost indexes provide a mechanism for adjusting outdated cost information and for tracking cost inflation in the mining industry. Table 1 lists a variety of indexes for specific mining cost centers and provides some guidance for their use. Table 2 lists current and historical values for the indexes. Table 3 lists U.S. Producer Price Indexes and Consumer Price Indexes. These are generally recognized as reliable measures of general inflation in the U.S. economy, and they serve as a comparison to the inflation experienced by the mining industry <...>

В настоящее время на мировых биржах торгуются акции более 1700 горнодобывающих компаний, из них российских компаний (или компаний с частичным российским капиталом) - не более 20, что явно несоразмерно с минерально-сырьевой ролью России в мире.