Electrical structure of the upper mantle beneath Central Europe: Results of the CEMES project |
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| Authors: | Vladimir Yu Semenov Josef Pek Antal Ádám Waldemar Jó?wiak Boris Ladanyvskyy Igor M Logvinov Pavel Pushkarev Jan Vozar |
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| Institution: | (1) Department of Physical Sciences, Division of Geophysics, University of Oulu, 3000, Oulu, 90014, Finland |
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| Abstract: | In the years 2001–2003, we accomplished the experimental phase of the project CEMES by collecting long-period magnetotelluric
data at positions of eleven permanent geomagnetic observatories situated within few hundreds kilometers along the south-west
margin of the East European Craton. Five teams were engaged in estimating independently the magnetotelluric responses by using
different data processing procedures. The conductance distributions at the depths of the upper mantle have been derived individually
beneath each observatory. By averaging the individual cross-sections, we have designed the final model of the geoelectrical
structure of the upper mantle beneath the CEMES region. The results indicate systematic trends in the deep electrical structure
of the two European tectonic plates and give evidence that the electrical structure of the upper mantle differs between the
East European Craton and the Phanerozoic plate of west Europe, with a separating transition zone that generally coincides
with the Trans-European Suture Zone. |
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