Estimation of the mantle conductivity of the southwestern part of the East European Platform
Journal Title: Геофизический журнал - Year 2015, Vol 37, Issue 1
Abstract
Geoelectric structure of the mantle at the depth of 100—1000 km is determined through joint interpretation of magnetotelluric sounding in 115 sites in the territory of southwestern part of the East European Platform and geomagnetic induction sounding at geomagnetic observatories of Ukraine, Belarus and Poland. Data inversions are considered in terms of conductance distribution. Below the depth of 450 km a sharp increase of conductivity begins. Throughout the whole area a layer of high conductivity can be selected with thickness of about 200 km with the center at a depth of 750 km. A single conductive layer at the depth of 100—200 km, was not revealed as a result of this study. In the vicinity of the Minsk observatory local objects with increased conductivity at different depths in the crust have been marked.
Authors and Affiliations
I. M. Logvinov, V. Astapenko
Keywords
Related Articles
- EP ID EP498852
- DOI 10.24028/gzh.0203-3100.v37i1.2015.111332
- Views 71
- Downloads 0
Dynamics of temporal changes of geomagnetic field secular variations
Time changes of the geomagnetic field secular variations, cleaned by three and eleven years running means were studying. The years of the changes of sign secular variations and years of the changes of their velocity wer...
Variations of geomagnetic response functions in Japan
Peculiarities of measurements have been described for response functions (RF), historical review of RF application in Japan has been given together with general condition of earthquake forecast (EQ). Detailed analysis of...
East-European microplate as an indentor and its orogenic margin
A problem of modern orogenesis in the northern margin of the East-Black Sea micro-plate has been considered based on numerical modeling. It has been shown that only the upper part (up to 40 km) of its sub-oceanic lithosp...
Deep seismic studies in the southeastern Fennoscandian Shield
The modern concept of the deep structure of the earth crust of the Ladoga-Bothnian zone, based on analysis and summing-up of all available information obtained in the last 35 years, is presented. Tomographic models were...
The memory of Vladimir Schuman - a scientist, citizen, patriot (on the occasion of his 75th birthday)
The memory of Vladimir Schuman - a scientist, citizen, patriot (on the occasion of his 75th birthday)