Author: H.M. Prichard Publisher: Springer Science & Business Media ISBN: 9400913532 Category : Science Languages : en Pages : 421
Book Description
The Geo-Platinum 87 Symposium, held at the Open University during April 1987, was designed as a forum for presentation of new research results on the occurrence, genesis, geochemistry, mineralogy and analysis of the platinum-group elements (PGE). With the support of the Open University and the Mineral Industry Research Organisation, the symposium was attended by 115 representatives of university departments, research institutions and members of the mining and mineral exploration industries. An introduction to the symposium was provided by two invited papers from C. J. Morrissey (Riofinex North) and C. R. N. Clark (Johnson Matthey) which were designed to give perspective to the goals of PGE research work. The first of these papers gave a provocative insight into the aims and objectives of an exploration manager, examining the influence of supply, demand and perceived world reserves on exploration strategy. The second invited paper gave a valuable view of the industrial uses, market trends and predicted changes in the commercial value of the platinum-group elements from the standpoint of a refining company and supplier. These invited papers are reproduced in this volume and are followed by twenty four full papers and twenty abstracts that reflect the wide range of research topics presented at the symposium.
Author: Rodney Moffett Publisher: UJ Press ISBN: 1776434137 Category : Nature Languages : en Pages : 334
Book Description
This Scientific Bibliography of the “Far Northern Drakensberg” is a continuation by the Afromontane Research Unit of the University of the Free State (ARU) to document published and other similar works on the mountains of the summer rainfall area of South Africa. It follows “A Scientific Bibliography of the Drakensberg, Maloti and Adjacent Lowlands” which was published in 2020 (Moffett 2020), and which covered the area between the North-Eastern Cape and the North-Eastern Free State. The current work extends this northward by including articles and publications dating back to 1875 (E.Cohen, on the Lydenburg goldfields) reaching as far as the Wolkberg and Woodbush near Tzaneen in Limpopo Province. Figure 1 shows the boundary of the area covered, and although referred to as the Far Northern Drakensberg in this work, it is identical to that described as the LMEE, Limpopo, Mpumalanga & Eswatini Escarpment by Clarke et al (2022). Although slightly separate from the “lower” escarpment, the mountainous Barberton and adjacent Eswatini area, as well as the Leolo Mountains in eastern Sekhukhuneland are also included. Details on how the boundary in figure 1 was determined are given in Clark et al (2022). Bibliographies on two further ranges in the summer rainfall area, viz. the Magaliesberg in Gauteng province and the Soutpansberg in Limpopo province are to be the subject of future compilations.
Author: L. Krmíček Publisher: Geological Society of London ISBN: 1786205432 Category : Science Languages : en Pages : 491
Book Description
Paleoproterozoic to Cenozoic lamprophyres, lamproites and related rock types (e.g., orangeites, kimberlites) are volatile-rich mafic magmatic rocks with a unique potential for the investigation of processes affecting mantle reservoirs. They originated from primary mantle-derived melts that intruded both cratons and off-craton regions, which were parts of former supercontinents – Columbia, Rodinia and Gondwana–Pangea. Well-known for hosting economic minerals and elements such as diamonds, base metals, gold and platinum-group elements, they are also significant for our understanding of deep-mantle processes, such as mantle metasomatism and mantle plume–lithosphere interactions, as well as large-scale geodynamic processes, such as subduction-related tectonics, and supercontinent amalgamation and break-up. This book aims to provide a timely overview of the state-of-the-art and recent advances as achieved by various research groups around the world. Mineralogical, geochemical, geochronological and isotope analyses are used to decipher the complex petrogenesis and metallogenesis of these extraordinary rocks, and unravel a complete history of tectonic events related to individual supercontinent cycles.
Author: Gunnar F. Nordberg Publisher: Academic Press ISBN: 0123973392 Category : Medical Languages : en Pages : 1544
Book Description
Handbook on the Toxicology of Metals, Fourth Edition bridges the gap between established knowledgebase and new advances in metal toxicology to provide one essential reference for all those involved in the field. This book provides comprehensive coverage of basic toxicological data, emphasizing toxic effects primarily in humans, but also those of animals and biological systems in vitro. The fourth edition also contains several new chapters on important topics such as nanotoxicology, metals in prosthetics and dental implants, gene-environment interaction, neurotoxicology, metals in food, renal, cardiovascular, and diabetes effects of metal exposures and more. Volume I covers “General Considerations and Volume II is devoted to “Specific Metals. A multidisciplinary resource with contributions from internationally-recognized experts, the fourth edition of the Handbook on the Toxicology of Metals is a prominent and indispensable reference for toxicologists, physicians, pharmacologists, engineers, and all those involved in the toxicity of metals. Contains 61 peer reviewed chapters dealing with the effects of metallic elements and their compounds on biological systems Includes information on sources, transport and transformation of metals in the environment and on certain aspects of the ecological effects of metals to provide a basis for better understanding of the potential for adverse effects on human health Covers the toxicology of metallic nanomaterials in a new comprehensive chapter Metal toxicology in developing countries is dealt with in another new chapter emphasizing the adverse effects on human health by the inadequate handling of "ewaste Other new chapters in the 4th edition include: Toxic metals in food; Toxicity of metals released from medical devices; Gene-environment interactions; Neurotoxicology of metals; Cardiovascular disease; Renal effects of exposure to metals; Gold and gold mining; Iridium; Lanthanum; Lithium and Rhodium
Author: Gunnar F. Nordberg Publisher: Academic Press ISBN: 0128231386 Category : Medical Languages : en Pages : 1054
Book Description
Handbook on the Toxicology of Metals, Volume II: Specific Metals, Fifth Edition provides complete coverage of 38 individual metals and their compounds. This volume is the second volume of a two-volume work which emphasizes toxic effects in humans, along with discussions on the toxic effects of animals and biological systems in vitro when relevant. The book has been systematically updated with the latest studies and advances in technology. As a multidisciplinary resource that integrates both human and environmental toxicology, the book is a comprehensive and valuable reference for toxicologists, physicians, pharmacologists, and environmental scientists in the fields of environmental, occupational and public health. - Contains peer-reviewed chapters that deal with the effects of metallic elements and their compounds on biological systems with a focus on human health effects - Includes information on sources, transport, and the transformation of metals in the environment - Provides critical information on the properties, use, biological monitoring, dose-response relationships, diagnosis, treatment, and prevention of 38 metallic elements and their compounds
Author: Zeev Alfassi Publisher: CRC Press ISBN: 9780849352133 Category : Science Languages : en Pages : 490
Book Description
Accurate determination of trace elements is critical in various fields of science and technology. Direct measurement of trace elements in samples with complex matrices is often impractical, either due to analytical sensitivity limitations or matrix interferences. Preconcentration procedures are generally needed to eliminate matrix interferences and/or enrich minute amounts of analytes to a level for reliable measurements. Preconcentration Techniques for Trace Elements provides up-to-date information on various preconcentration techniques and detailed discussions regarding such topics as the dissolution of matrices, coprecipitation, solvent extraction, electrochemical means, ion exchange, sorption, chromatographic methods, flotation, membranes, volatization, polymer foam sorbents, fire assay, isotachophoresis, and filter papers. This comprehensive volume, featuring contributions from 21 experts from nine countries, will provide valuable reference material for all scientists and technicians dealing with trace analysis of real-world samples.
Author: H.M. Prichard
Author: Richard A. Sheppard
Author: Rodney Moffett
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Author: L. Krmíček
Author: Gunnar F. Nordberg
Author: Gunnar F. Nordberg
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Author: Zeev Alfassi