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The second half of the past century witnessed a remarkable paradigm shift in approach to the understanding of igneous rocks. Global literature records a change from a classical petrographic approach to emphasis on mineral chemistry, trace element characteristics, tectonic setting, phase relations, and theoretical simulation of magma generation and evolution processes. This book contains contributions by international experts in different fields of igneous petrology and presents an overview of recent developments. This book is dedicated to the late Dr Mihir K. Bose, former professor of the Department of Geology, Presidency College, Calcutta, India, who actively participated in the development of this new global view of igneous petrology. Audience: This book will be valuable for scientists and researchers working in igneous petrology and geochemistry.
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Geochemical barrier zones play an important role in determining various physical systems and characteristics of the oceans, e.g. hydrodynamics, salinity, temperature and light. In this book, each of the 40 barrier zones covered are illustrated and defined by physical-chemical parameters. Among the topics discussed are the processes of inflow, transformation and precipitation of the sedimentary layer of the open oceans and more restricted areas such as the Baltic, Black and Mediterranean Seas. This well-illustrated book may serve as the basis for courses such as "Marine Geochemistry" or "Ocean Usage" and can be useful to researchers in the fields of geology, geography, marine chemistry, geoecology and hydrochemistry.
Geochemistry --- Hydrosphere --- geochemie --- oceanografie
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Aardolie --- Geochemie --- Woordenboeken. --- woordenboeken.
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Geochemie. --- Geochemistry --- Geofysica. --- Geophysics
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Geochemistry --- Hydrosphere --- geochemie --- oceanografie
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The book will include contributions of the state of the art of quartz raw materials (deposits and properties) and their analytics. The chapters are presented by leading scientists in the quartz field. The presentations cover the main interrelations between genesis of quartz - formation of specific properties - analytics - industrial applications of SiO2 raw materials.
Geochemistry --- Rocks. Minerals --- geochemie --- mineralogie
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Die vorliegende Arbeit untersucht die Möglichkeit der Rekonstruktion prähistorischer Hochwasserereignisse am Oberrhein und an der Oberen Donau anhand von Änderungen in der geochemisch-mineralogischen sowie der granulometrischen Zusammensetzung von Auensedimenten. Das konkrete Ziel der Arbeit ist es, einen Zusammenhang zwischen der geochemisch-mineralogischen sowie der granulometrischen Zusammensetzung der im Auenbereich abgelagerten Sedimente und der Höhe des herrschenden Abflusses nachzuweisen.
Rhein --- Geochemie --- Donau --- Granulometrie --- Hochwasserrekonstruktion
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1000 °C) and low pressures (< 2 kb) and typically results in the formation of "burnt" and fused rocks termed buchites, paralavas, clinkers and fulgarites. It is typically associated with shallow basaltic intrusions (contact aureoles, xenoliths,) combustion of carbonaceous matter, lightning strikes, and is also found in meteorites. During pyrometamorphism, the sequence of heating and cooling is greatly condensed favouring the preservation of a variety of stranded reaction microstructures that reflect disequilibrium reaction kinetics with metastable and mineral crystallisation. This second edition includes the latest developments in the study of pyrometamorphism derived from over 60 new references and accompanied with over 20 new illustrations.
Geochemistry --- Rocks. Minerals --- geochemie --- mineralogie
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