Earth sciences data are typically distributed in space and/or in time. Knowledge of an attribute value, say, a mineral grade or a pollutant concentration, is thus of little interest unless location and/or time of measurement are known and accounted for in the data analysis. Geostatistics provides a set of statistical tools for incorporating the spatial and temporal coordinates of observations in data processing.

This text intends to be a technical one. This means that techniques to solve identified problems will be presented. As the theory which serves as a basis for these techniques is very new, and relatively unfamiliar to the mineral industry, several chapters or sections will be devoted to it. These two ideas of a technique and a theory have been my guideline in preparing this course on the geostatistical estimation of mineral resources. The main target was to stay, as much as possible, close to the practical problems. This is the reason for the many examples which are intermeshed with the text; however, in many cases, staying t o o close t o a problem obscures the broader frame into which a question has to be asked before finding a correct answer. This is the reason for some theoretical digressions, which may seem to some as an attempt to try and make things look complicated. Certainly, in a particular mine, many problems can be solved without a total understanding of the complete theory. On the other hand, when one considers all the problems occurring in different mines, one cannot hope to solve them without having a good grasp, a synthetic view of the theory of regionalized variables as developed by G. Matheron in France, the most advanced developments of which have just been published in the Proceedings of a N.A.T.O. Advanced Study Institute (Guarascio, Huijbregts, David, 1976) <...>

Risk in project evaluation involves the probability of estimates failing. There are few more risk prone businesses than mining. Burmeister (1989) reviewed 35 Australian gold operations which were initiated in the period 1984 to 1987 and found that two-thirds of them had not achieved targeted gold production in the first full year of operation. For those that did exceed target, the overriding reason was a higher than anticipated plant throughput. Only two out of the 35 achieved their projected recovered grade. Burmeister observed that the reasons for the shortfall in grade included excessive dilution, inappropriate estimation techniques, inadequate geological interpretation, unreliable assays and inadequate drilling.

Applied Mineral Inventory Estimation presents a comprehensive applied approach to the estimation of mineral resources/reserves with particular emphasis on

The geological basis of such estimations

The need for and maintenance of a high-quality assay data base

The practical use of a comprehensive exploratory data evaluation

The importance of a comprehensive geostatistical approach to the estimation methodology.

Настоящий стандарт распространяется на эксплуатационную разведку россыпных месторождений золота при подземном способе разработки и устанавливает требования к оконтуриванию, порядок учета добычи песков и золота при ведении горноподготовительных и нарезных работ, подсчета подготовленных к выемке запасов в шахтном поле и оценки достоверности эксплуатационной разведки.

Every day, somewhere in the world, decisions are made about how public lands that might contain undiscovered resources should be used or whether to invest in exploration for minerals. Less frequently, decisions are made concerning mineral resource adequacy, national policy, and regional development. Naturally, the people making the decisions would like to know the exact consequences of the decisions before the decisions are made. Unfortunately, it is not possible to inform these decision-makers, with any certainty, about amounts, discoverability, or economics of undiscovered mineral resources.

The WA School of Mines, established in 1902, has been a core part of Curtin University since 1969 when it came on board to deliver mining education programs as part of what was then the Western Australian Institute of Technology.

As one of the first mining schools in Australia, it has adapted and expanded over more than a century to better support the education and research needs of the broader resources industry. In addition to retaining its mining roots, the School now also incorporates chemical engineering, mineral and energy economics and petroleum engineering. <...>

В отечественной литературе за последние 10—15 лет опубликован ряд статей и брошюр, посвященных вопросам экономической геологии, но обобщающей работы на эту тему до сих пор не было. Труд Б.С. Левоника «Вопросы экономической геологии» восполняет этот пробел.
Книга состоит из трех частей.

1. Постановление Правительства Российской Федерации от 28.02.96 № 215 «Об утверждении порядка представления государственной отчетности предприятиям, осуществляющим разведку месторождений полезных ископаемых и их добычу, в федеральный и территориальный фонды геологической информации»

1.1. Под лечебными минеральными* принято понимать подзем¬ные воды, содержащие в повышенных концентрациях различные минеральные (реже органические) компоненты и газы или обла¬дающие какими-либо особыми физическими свойствами (радиоак¬тивность, повышенная температура и др.), благодаря чему эти во¬ды оказывают на организм человека лечебное воздействие при наружном или внутреннем применении.