Precise descriptions of the features seen in soils or regoliths as examined under the microscope require a specific set of concepts and terms because the microscope reveals features that simply cannot be seen with the naked eye. Microscopic features can of course be described using common words, but this would lead to very tedious and lengthy descriptive texts that are time consuming both to write and to read and not always unambiguous. Moreover, it would be difficult to translate such descriptions without losing information or committing errors. By using a comprehensive terminology, descriptions would be not only shorter, but also easier to compare and to store in databases <...>

Книга посвящена геологическому строению, ландшафтным особенностям и истории геологического развития Боровичского района Новгородской области, являясь популярным путеводителем экскурсий по опорному разрезу нижнего карбона по р.Мста и её притокам в окрестностях г.Боровичи.

Our combined experiences in the global minerals industry are the central source for the effective project management tactics and methods that we seek to convey within this book. We are forever indebted to the corporations who so generously employed us and to our colleagues who so patiently educated us over these past 50 years. This publication is a culmination of the wisdom we gleaned and gathered from so many others as we worked our way through almost 500 projects following our entry into the mining profession.

As a profession, mining engineering is often viewed as being distinctly unique from other fields of engineering. Paramount among the factors driving this opinion are the multidisciplinary nature of the technical considerations influencing the design and operation of mines and processing facilities, the uncertainty inherent to mineral resources and the geomaterials in which these facilities are constructed, and the economic risk that underlies these investments.

The extraction and processing of minerals is an essential part of the way the world and its various civilizations function and interact. To forget the contribution that mining has made (and continues to make) is to take for granted the significant progress that civilization has made since the last Ice Age. It is also to ignore the fact that the very structure upon which we depend is built on—and with—the products of mining. <...>

This book covers the microscopic study of sandstones, mudstones and associated lithologies but excludes carbonate rocks which were covered in AAPG Memoir 77 (Scholle and Ulmer-Scholle, 2003). Sandstone petrography, and sedimentary petrography in general, is considered by many to be a science in decline. As a consequence, it is being taught at fewer universities, or at least commonly is subsumed into broader petrology or sedimentology classes, where it receives less time and less focus <...>

Guidelines for Evaluating Water in Pit Slope Stability (the ‘Water Book’) is an outcome of the Large Open Pit (LOP) project, an international research and technology transfer project on the stability of rock slopes in open pit mines. It is a follow-up to Chapter 6 in the LOP project’s previous publication Guidelines for Open Pit Slope Design (Read & Stacey, 2009), which outlined how the hydrogeological model is developed and applied in the design of rock slopes. It describes the outcomes of hydrogeological research performed by the LOP project since 2009 and has the objective of providing slope design practitioners with a road map that that will help them decide how to investigate and manage water pressures in pit slopes.

Exploration is looking for minerals by means of surveys, drilling and taking samples. This includes extracting minerals for purposes other than producing them commercially. <...>

Периодически в процессе бурения возникает прихват бурильной колонны, и ее нельзя поднять, опустить или вращать. Прихват трубы обходится до рого и вызывает осложнения. Специальные инстру менты, специализированные технические услуги и специальное кондиционирование бурового раствора для освобождения трубы служат источниками расходов, не говоря о потерях рабочего времени буровой установки. За время, требуемое для освобождения трубы и возврата к бурению, может ухудшиться стабильность необсаженной скважины. По этой
причине предотвращение прихвата труб и ускорение их освобождения в случае его возникновения имеют важное значение для буровых операций. <...>

This catalogue details each of the items in the pinnable Insert list for Calculations and Filters. Each item includes an intentionally trivial example to illustrate the use of the item, along with an explanation of the effect of the expression <...>