Granite Related Ore Deposits Of Central Kazakhstan And Adjacent Areas

This volume presents a selection of papers resulting from the INTAS Project 93-1783 "Ore-bearing granites of Eurasia: Anatomy and mag-matic-hydrothermal mechanisms of ore deposition" (INTAS = International Association for the Promotion of Cooperation with Scientists from the New Independent States of the Former Soviet Union). It is the second monograph from this project, after our 1996 publication of "Granite-Related Ore Deposits of Central Kazakhstan and Adjacent Areas" (Shatov et al, 1996). The monograph contains 19 contributions of which 14 papers provide regional overviews on a number of important granite and ore provinces (northern and central Kazakhstan, Urals, Mongolia, Caucasus, Siberia, Yakutia, Pamirs). Five other papers are on general aspects of granite magmatism (geophysics, metasomatic zoning, volatile composition, petrogenetic tracing). An introductory paper compiles hitherto unavailable data on ore resources, mining production, uses, and applications for more than one hundred major granite-related rare-metal ore deposits of the former Soviet Union. Figure 1 illustrates the location of those areas treated in this volume. There are a number of significant rare-metal granite areas which are not covered by review papers. These gaps result from the fact that our INTAS project cooperation could only reach a limited number of FSU research groups, and that several papers submitted could not be accepted for publication. This volume provides a first and hitherto unavailable overview of the geology and metallogeny of major granite-related rare-metal deposits of Russia and adjacent countries. The papers may be used as astarting point for those interested in a particular area. The publication will be useful to the mineral exploration and mining community, and to all geoscientists interested in granite-related metallogeny.

Volume 50 of Reviews in Mineralogy and Geochemistry treats Beryllium and its cosmogenic isotopes. This volume includes an overview of Be studies in the earth sciences and a systematic classification of Be minerals based on their crystal structure. It treats the analysis of these minerals by the secondary ion mass spectroscopy as well as experimental studies of systems involving Be. Moreover, this volume reviews the behavior of Be in the Solar System, with an emphasis on meteorites, the Moon and Mars, and the implications of this behavior for the evolution of the solar system. It gives an overview of the terrestrial geochemistry of Be and discusses the contamination of the environment by this anthropogenic toxin. It reports use of the longer lived Be-10 to assess erosion rates and other surficial processes and how this isotope can yield independent temporal records of geomagnetic field variations for comparison with records obtained by measuring natural remnant magnetization, be a chemical tracer for processes in convergent margins, and can date events in Cenozoic tectonics. It reviews applications of the shorter lived isotope Be-7 in environmental studies as well. Residual phases include acidic plutonic and volcanic rocks, whose geochemistry and evolution are covered, while granitic pegmatites, which are well-known for their remarkable, if localized, Be enrichments and a wide variety of Be mineral assemblages, are reviewed. Not all Be concentrations have obvious magmatic affinities; for example, one class of emerald deposits results from Be being introduced by heated brines. Pelitic rocks are an important reservoir of Be in the Earth's crust and their metamorphism plays a critical role in recycling of Be in subduction zones, eventually, anatectic processes complete the cycle, providing a source of Be for granitic rocks.

The Joint 6th Biennial SGA-SEG Meeting was held in Krakow in August 2001. This volume contains 274 extended abstracts, grouped thematically under 18 session titles covering topics such as lead-zinc deposits; metamorphism affecting mineral deposits; and the environmental aspects of mining.

Metals in the earth's crust are very unevenly distributed and, traditionally, a small number of ore deposits, districts or countries have dominated the world supply and have influenced commodity prices. The importance of exceptionally large, or rich, deposits has greatly increased in the age of globalization when a small number of international corporations dominate the metals market, based on few very large ore deposits, practically anywhere in the world. Search for giant orebodies thus drives the exploration industry: not only the in-house teams of large internationals, but also hundreds of junior companies hoping to sell their significant discoveries to the "big boys". Geological characteristics of giant metallic deposits and their setting and the politico-economic constraints of access to and exploitation in prospective areas have been a "hot topic" in the past fifteen years, but the knowledge generated and published has been one-sided, scattered and fragmented. This is the first comprehensive book on the subject that provides body of solid facts rather than rapidly changing theories, written by author of the Empirical Metallogeny book series and founder of the Data Metallogenica visual knowledge system on mineral deposits of the world, who has had an almost 40 years long international academic and industrial experience. The book will provide abundant material for comparative research in metallogeny, practical information for the explorationists as to where to look for the "elephants", and some inspiration for commodity investors.