Models of electric conductivity in the upper mantle |
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| Authors: | Jana Pě?ová Karel Pě? Reviewer M Hvo?dara |
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| Institution: | (1) Geophysical Institute, Czechosl. Acad. Sci., Prague;(2) Geophysical Institute, Charles University, Prague |
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| Abstract: | Summary The accessible data of the apparent resistivity  T( T) were collected and supplemented by the spectral analysis of daily means of geomagnetic components observed at world geomagnetic observatories. The data were least-squares fitted; four models of the resistivity in the upper mantle which agree with the experimental data were obtained by solving the inverse problem using Marquardt's gradient-expansion algorithm. |
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