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Magnetotelluric measurements in Antarctica
Physics of the Earth and Planetary Interiors, 1990During austral summer 1984–1985 magnetotelluric measurements were carried out in North Victoria Land, Antarctica. The magnetic field was measured by a three-component fluxgate magnetometer. Copper screens (50 cm × 50 cm) were used as electrodes for recording the electric field, connected to a two channel electrograph with an input impedance of 1012 ω ...
M. Beblo, V. Liebig
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An Interpretive Analysis of Magnetotelluric Data
Exploration Geophysics, 1984Abstract A simple analysis to determine the dimensionality of magnetotelluric resistivity variations, to separate the near-surface resistivity variation from the variations at depth, and to find the relative resistivity variations with depth is described.
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Journal of Geophysical Research: Solid Earth, 1987
The study of the electrical conductivity structure of the lower crust and the upper mantle and midmantle promises to place important constraints on the thermobaric and compositional state of the earth's interior. Such work, particularly for depths above approximately 400 km, is best attempted by magnetotelluric sounding, an effort frustrated by the ...
Adam Schultz, John Booker, Jim Larsen
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The study of the electrical conductivity structure of the lower crust and the upper mantle and midmantle promises to place important constraints on the thermobaric and compositional state of the earth's interior. Such work, particularly for depths above approximately 400 km, is best attempted by magnetotelluric sounding, an effort frustrated by the ...
Adam Schultz, John Booker, Jim Larsen
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The magnetotelluric inverse problem
Geophysical Surveys, 1983The magnetotelluric inverse problem is reviewed, addressing the following mathematical questions: (a)Existence of solutions: A satisfactory theory is now available to determine whether or not a given finite collection of response data is consistent with any one-dimensional conductivity profile. (b)Uniqueness: With practical data, consisting of a finite
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Marginal Notes On Magnetotellurics
Surveys in Geophysics, 1999The paper presents the brief notes on some questionable points of modern magnetotellurics. These controversial points are: (1) nature and structure of the magnetotelluric impedance tensor, (2) magnetotelluric dispersion relations, (3) the magnetotelluric eigenstate problem, (4) separation of local and regional effects (the local-regional decomposition),
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Auxiliary Tools for Magnetotellurics
2020In this chapter, we shall briefly discuss the geophysical tools that are categorised as auxiliary tools for magnetotellurics where both natural and man-made sources are used to measure both electric and magnetic fields. These tools are: (i) audiofrequency magnetotellurics (AMT), (ii) controlled-source audiofrequency magnetotellurics (CSAMT) and (iii ...
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Magnetotelluric Closed-Loop Inversion
IEEE Transactions on Geoscience and Remote Sensing, 2023Zhuo Jia +5 more
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Deep learning audio magnetotellurics inversion using residual-based deep convolution neural network
Journal of Applied Geophysics, 2021Huang Chen +2 more
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Electromagnetics and Magnetotellurics
Symposium on the Application of Geophysics to Engineering and Environmental Problems 2016, 2016Leif Cox +15 more
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Magnetotellurics: the CBB or phase tensor and Bahr's 1988 analysis
Exploration Geophysics, 2020Frederick E M Lilley
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