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Редактор(ы):Akdogan G., Miller J., Snyders N., Wingate E., Zhang P.
Издание:Society for Mining Metallurgy and Exploration Inc., 2019 г., 241 стр., ISBN: 978-0-87335-474-5
Язык(и)Английский
Beneficiation of phosphates. Sustainability, critical materials, smart processes / Получение фосфатов. Устойчивость, основные материалы, умные процессы

Water supply is critical for ensuring optimal operation of any beneficiation plant. As ore quality continues to decline, the demand on water for mineral processing will only increase. Traditionally, ground and surface water sources have been extensively utilized for mining and beneficiation. In some regions, these sources are proving to be insufficient to meet the increasing demands of this industry, as well as the local municipal requirements. As a result, alternate water supplies must be considered. The purpose of this investigation was to develop a collector that allows for the flotation of phosphate in sea water, while still meeting the grade (>27.5% P2O5) and recovery (>80%) criteria. <...>

Автор(ы):Pusch R.
Издание:CRC Press, 2015 г., 367 стр., ISBN: 978-1-4822-4344-4
Язык(и)Английский
Bentonite clay. Environmental properties and applications / Бентонитовые глины. Экологические свойства и область применения

Have you tried to walk across a farmer’s field in Montmorillon in France on a rainy October day? Marcel and Bertrand, his father, tried to do so in the fall of 1881 with fatal consequences. We will return to this terrible true story in the first chapter of this book for explaining how the soil at this place made it happen, continuing throughout the rest of the book by explaining how the dreadful soil, in fact, also has extremely beneficial properties in other contexts, like isolation of very hazardous waste.

Автор(ы):Grim R.E., Guven N.
Издание:Elsevier, 1978 г., 266 стр., ISBN: 0-444-41613
Язык(и)Английский
Bentonites. Geology, mineralogy, properties and uses / Бентониты. Геология, минералогия, свойства и использование

The name bentonite was suggested in 1898 by Knight for a peculiar claylike material with soapy properties from its occurrence in the Fort Benton unit of Cretaceous age formations in Wyoming (U.S.A.). Hewitt (1917) and Wherry (1917) first established that this particular clay is an alteration product of volcanic ash, although an earlier observation by Condra (1908) suggested this origin for a similar clay from northern Nebraska. Ross and Shannon (1926) presented the following definition which has been widely quoted:

Автор(ы):Schudack U.
Издание:Berlin, 1994 г., 194 стр.
Язык(и)Немецкий
Berliner geowissenschaftliche abhandlungen. Reihe E. Band 11. Revision, dokumentation und stratigraphie der ostracoden des nordwestdeutschen oberjura und unter-berriasium

Берлинские трактаты по наукам о Земле. Серия E. Том 11. Пересмотр, документация и стратиграфия остракод Верхней Юры и нижней Беррии на северо-западе Германии

Die Ostracodenfaunen des Unter-Oxfordium (höchste Omaten-Tone) bis Unter-Berriasium (Serpulit) im Niedersächsischen Becken werden, da die Forschungen hier seit den intensiven Bearbeitungen der 40er, 50er und beginnenden 60er Jahre stagnierten, auf der Grundlage eines modernen taxonomischen Konzeptes neu untersucht und zum Teil rekombiniert. Es werden 98 Arten und 6 Unterarten aus 36 Gattungen und 10 Untergattungen, davon eine neue Art

Редактор(ы):Grew E.S.
Издание:2002 г., 687 стр., ISBN: 978-0-939950-62-1
Язык(и)Английский
Beryllium. Mineralogy, petrology and geochemistry / Бериллий. Минералогия, петрология и геохимия

The Be mineral beryl and its colored variants emerald, aquamarine, and “chrysoberyl” (= golden beryl, not the present chrysoberyl) were known to the ancients, and Pliny the Elder had noted that many persons considered emerald and beryl “to be of the same nature” (Sinkankas 1981, p. 20; also Dana 1892; Weeks and Leicester 1968). However, not until 1798 was it realized that beryl contained a previously unknown constituent; analyses before then yielded only silica, alumina, lime and minor iron oxide (Vauquelin 1798; Anonymous 1930; Weeks and Leicester 1968; Greenwood and Earnshaw 1997).

Автор(ы):Dyke G.P.
Издание:2009 г., 8 стр.
Язык(и)Английский
Best practice and new technology in open pit mining geotechnics: Geita gold mine, Mali–a case study / Передовой опыт и новые технологии в области геотехники открытых горных работ: золоторудный рудник Гейта, Мали – тематическое исследование

With the removal of the majority of the shallow mineral reserves there has been an increase in the mining depths in the South African mining industry. This has, in turn, changed the industry’s and stakeholders’ perceptions of risk associated with mining-induced instability. In recent years the increased mining depth, particularly in open pits, has led to an increase in pit slope failures, which has highlighted the need for appropriate and effective pit slope management programmes. Such a programme comprises many facets, including mine hazard plans, regular slope inspections, cleaning of interim and final pit faces, blasting practices, histories of failures, pit depressurization, stormwater control and evacuation procedures. However, it is arguably in the field of slope monitoring that the most significant strides have been made in terms of new technologies and best practice in open pit mining geotechnics, with the introduction of technologies such as laser scanners and slope stability radar. This paper seeks to illustrate the operational benefits associated with the implementation of new technologies into open pit mining, using AngloGold Ashanti’s Geita Gold Mine in Tanzania as an example. <...>

Издание:Mining & Resource Technology, 1998 г., 139 стр.
Язык(и)Английский
Beyond ordinary kriging: Non-linear geostatistical methods in practice / За пределами ординарного кригинга: Нелинейные геостатистические методы на практике

Many geostatistical variables have sample distributions that are highly positively skewed. Because of this, significant deskewing of the histogram and reduction of variance occurs when going from sample to block support, where blocks are of larger volume than samples. When making estimates in both mining and non-mining applications we often wish to map the spatial distribution on the basis of block support rather than sample support.

Редактор(ы):Adachi G., Imanaka N., Kang Z.C.
Издание:Kluwer Academic Publishers, 2004 г., 303 стр., ISBN: 1-4020-2569-6
Язык(и)Английский
Binary rare earth oxides / Бинарные оксиды редкоземельных элементов

A number of functional materials based on rare earth oxides have been developed in various fields. Up to 1990, many review articles describing rare earth oxides have been reported and several intensive articles deal the properties e.g. preparation, structure and transformation and have been published early nineteen nineties. In these ten years, much progress has been made in the characterization of rare earth oxides from high-resolution electron microscopy (HREM), as well as in a unique preparation of ultra-fine particles and in the theoretical calculation.

Выпуск 28
Редактор(ы):Stefan Weiss
Издание:Christiam Weiss Verlag, Munich, 2004 г., 106 стр., ISBN: 945-8492
Язык(и)Немецкий
Binnatal Aubergewohnliche Kristalle - faszinierende Berge. extral apis 28

Das Binntal ist ein wahres Eldorado für Mineraliensammler und -liebhaber. Es gibt wohl kein anderes Gebiet in den Alpen, welches so vielseitige und weltweit einzigartige Vorkommen auf engstem Raum aufweist, wie dieses vom Massentourismus noch weitgehend verschonte Alpental. Hinzu kommt noch eine besonders artenreiche und üppige Flora, welche sich hier auf äußerst abwechslungsreichen Gesteinen entwickeln konnte.

Редактор(ы):Barnosky A.D.
Издание:University of California Press, 2004 г., 408 стр., ISBN: 0-520-24082-0
Язык(и)Английский
Biodiversity Response to Climate Change in the Middle Pleistocene The Porcupine Cave Fauna from Colorado /  Реакция биоразнообразия на изменение климата в среднем плейстоцене. Пещерная дикая фауна из Колорадо

Since fossil vertebrates were first discovered at Porcupine Cave on the rim of South Park, Colorado, in 1981, the site has become the world’s most important source of information about animals that lived in the high elevations of North America in the middle part of the ice ages, between approximately one million and 600,000 years ago. Beginning in 1985, teams of scientists and volunteers from three major research institutions —the Carnegie Museum of Natural History, the Denver Museum of Nature and Science, and the University of California Museum of Paleontology—spent some 15 field seasons excavating and studying tens of thousands of fossil specimens that have opened a window onto past evolutionary and ecological adjustments. This window into the past allows us to visualize how ongoing global change could affect our living communities. This book reports the results of nearly two decades of research and has been written to appeal to three overlapping audiences

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