Anomalous Magnetic Field of the World Ocean


Book Description

This book investigates the anomalous magnetic field of the ocean and its connection with geological structure, tectonic evolution of the oceanic lithosphere, and magnetic properties of different rock types in the oceanic crust. The book describes new instruments and techniques of gradient magnetic measurements with three sensors, as well as the new technique of processing and interpretating hydromagnetic data on the basis of adoptive filtration and reparametrization. The text provides unique data of geomagnetic surveys carried out by Russian research vessels in different regions of the World Ocean, including submersible apparatus and ingenious theoretical and experimental technology of the magnetic modeling and investigations of the nature of magnetic anomalies. The results of systems analysis of geochemical content and composition during the mid-oceanic ridge basalt are presented.




Plate Tectonics: A Very Short Introduction


Book Description

La 4e de couv. indique : "The concept of plate tectonics is relatively new - it was only in the 1960s that the idea that continents drifted with respect to one another came to be accepted. Plate tectonics now forms one of geology's basic principles and explains much of the large-scale structure and phenomena we see on Earth today. In this Very Short Introduction Peter Molnar explores the impact that plate tectonics has had on our understanding of Earth : how the ocean floor forms, widens, and disappears ; why earthquakes and volcanoes are found in distinct zones ; and how the great mountain ranges of the world were built. As the Himalaya continues to grow, the Atlantic widens, and new ocean floor is forming, the mechanisms of plate tectonics continue to alter the surface of our planet."




Geophysical Abstracts


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Geophysical Abstracts


Book Description







The Earth's Crust and Mantle


Book Description

The translation is a summary of complex data on the earth's crust and upper mantle. In the examination of the data on the various regions of the terrestrial globe (characteristics of the gravity, magnetic, seismic, thermal and electric fields of the earth) and the comparison between them and the structure of the crust, the author reveals the specific features of the different geological structures and determines the diagnostic significance of the geophysical data. Much attention is given to the crustal structure of the oceanic areas. A description of the general characteristics of the relief and the physical properties of the upper mantle is given in the last section of the book, where the physical map of the upper mantle is given in the last section of the book, where the physical map of the upper mantle is presented. In conclusion, a review is given of the projects of ultradeep scientific boring in the Pacific ocean, territory of the USSR, Japan and Canada. (Author).




The Magnetic Field of the Earth


Book Description

Topics involved in studies of the Earth's magnetic field and its secular variation range from the intricate observations of geomagnetism, to worldwide studies of archeomagnetism and paleomagnetism, through to the complex mathematics of dynamo theory. Traditionally these different aspects of geomagnetism have in the main been studied and presented in isolation from each other. This text draws together these lines of inquiry into an integrated framework to highlight the interrelationships and thus to provide a more comprehensive understanding of the geomagnetic field.







The Earth's Magnetic Field


Book Description

The Earth's magnetic field has existed for hundreds of millions of years, far longer than life has existed on Earth, and affects our lives in many ways. We can use it to orient buildings and navigate across unmarked territory. Moreover, it protects us from harmful radiation from space. Intended as an introductory guide for non-specialist readers, this book describes the historical importance of the Earth's magnetic field and its role in protecting the planet from harmful high-energy radiation from the Sun. With explanations of underlying physics of processes and references to original scientific works, the reader can explore the Earth's magnetic field and the various ways in which geomagnetics are used and measured, including the analysis of modern satellite-based investigations and the effects of solar activity on the geomagnetic field.




Quantitative Plate Tectonics


Book Description

This textbook on plate tectonics is designed for students in geology and geophysics to acquire in-depth knowledge of quantitative methods in plate kinematics and dynamics. Quantitative Plate Tectonics can also be used as a reference book by geoscientists who desire to expand their knowledge beyond their own specialization, or by oil-and-gas professionals and ore deposit specialists that need to investigate the geodynamic context of formation of geologic resources. Finally, this book can be considered as a comprehensive monograph on plate tectonics, which addresses the different quantitative aspects of this broad discipline, which has been traditionally partitioned into separate or quasi-separate branches. Additional material, available at http://extras.springer.com, includes two computer programs for the analysis of marine magnetic anomalies and for plate kinematic modelling, as well as some important geophysical data sets and models. Solutions to the exercises are also included. A unified quantitative description of plate tectonics, combining geological and geophysical perspectives Professional software, manual verification examples and applications are available as additional material Includes detailed calculations, examples, and problem sets per chapter Well illustrated "Dr. Schettino has produced a book covering in a rigorous way the kinematics and dynamics of plate tectonics. The fundamental physics governing geodynamic processes is discussed quantitatively, the relevant equations are clearly derived, and the implications of results are illustrated with examples and problems. The book will repay careful reading not only by postgraduate students in geophysics and geology, but also by any Earth scientist who wishes to acquire a quantitative understanding of plate tectonics."Giorgio Ranalli, Distinguished Research Professor, Department of Earth Sciences, Carleton university, Ottawa, Canada (author of "Rheology of the Earth", two editions, 1987 and 1995) "This text gives an excellent quantitative presentation of the kinematics and the dynamics of plate tectonics that integrates many aspects of the Earth sciences and provides a powerful model of the dynamic behaviour of the Earth. The geological and geophysical processes involved in elucidating the theory are clearly illustrated through a perfectly balanced level of mathematical and physical concepts including derivation of the relevant equations, examples and problems. The book is intended for advanced undergraduates, graduate students and professional earth scientists requiring an overview of the essential processes of plate tectonics." Marco Ligi, Senior Researcher, National Research Council of Italy, Istituto di Scienze Marine, Bologna, Italy.