Induction Soundings of the Earth's Mantle (GeoPlanet: Earth and Planetary Sciences)

At the heart of this book is the generalized theoretical approach that is applied to investigate the geoelectrical structure of the Earth?s mantle. It also analyzes the results of regional and global induction sounding of the Earth?s mantle and compares them with the results obtained by other geophysical methods. The generalized theoretical approach employs the Induction Law as a basis for identifying extended relations between magnetic field components, including their plane divergence, impedances and spatial derivatives. The estimations of impedance values and spatial derivatives are performed using the theory of stochastic processes. The book also considers the external sources of magnetic fields used for sounding the Earths mantle from the modern theory perspective, as well as the problem of coincidence of magneto-variation and magnetotelluric methods. Further, it discusses secular variations in the Earth?s resistance caused by non-induction sources, factors that are correlated with the number of earthquakes in the region and shifted in time with global indexes. It is a valuable resource for scientists applying deep induction soundings or interested in the structures of and processes in the Earth?s interior. Read more... Abstract: At the heart of this book is the generalized theoretical approach that is applied to investigate the geoelectrical structure of the Earth?s mantle. It also analyzes the results of regional and global induction sounding of the Earth?s mantle and compares them with the results obtained by other geophysical methods. The generalized theoretical approach employs the Induction Law as a basis for identifying extended relations between magnetic field components, including their plane divergence, impedances and spatial derivatives. The estimations of impedance values and spatial derivatives are performed using the theory of stochastic processes. The book also considers the external sources of magnetic fields used for sounding the Earths mantle from the modern theory perspective, as well as the problem of coincidence of magneto-variation and magnetotelluric methods. Further, it discusses secular variations in the Earth?s resistance caused by non-induction sources, factors that are correlated with the number of earthquakes in the region and shifted in time with global indexes. It is a valuable resource for scientists applying deep induction soundings or interested in the structures of and processes in the Earth?s interior La 4e de couverture indique :"At the heart of this book is the generalized theoretical approach that is applied to investigate the geoelectrical structure of the Earth's mantle. It also analyzes the results of regional and global induction sounding of the Earth's mantle and compares them with the results obtained by other geophysical methods. The generalized theoretical approach employs the Induction Law as a basis for identifying extended relations between magnetic field components, including their plane divergence, impedances and spatial derivatives. The estimations of impedance values and spatial derivatives are performed using the theory of stochastic processes. The book also considers the external sources of magnetic fields used for sounding the Earths mantle from the modern theory perspective, as well as the problem of coincidence of magneto-variation and magnetotelluric methods. Further, it discusses secular variations in the Earth's resistance caused by non-induction sources, factors that are correlated with the number of earthquakes in the region and shifted in time with global indexes. It is a valuable resource for scientists applying deep induction soundings or interested in the structures of and processes in the Earth's interior." Front Matter ....Pages i-xvi Impedances, Sources and Environments (Vladimir Semenov, Maxim Petrishchev)....Pages 1-23 Several Impedances from One Equation (Vladimir Semenov, Maxim Petrishchev)....Pages 25-44 Modeling of Deep Soundings (Vladimir Semenov, Maxim Petrishchev)....Pages 45-55 Results of Deep Soundings in Europe (Vladimir Semenov, Maxim Petrishchev)....Pages 57-77 Electromagnetic Monitoring (Vladimir Semenov, Maxim Petrishchev)....Pages 79-100