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 54
- Downloads 0
Characteristics of the gravity field of predictive oil-gas areas in the DDD region according to satellite model EGM08 and gravity measurements at the beginning of the XX century
Gravimetric information is the basis for mineral exploration. The foundations of resource research in Ukraine were started by a large-scale gravimetric survey performed by the Poltava Gravimetric Observatory (PGO) in 192...
The new method for edges detection of magnetic sources using logistic function
The tilt angle of the analytic signal amplitude (TA) is defined as the arctangent of the ratio of the first vertical derivative to the total horizontal derivative of the analytic signal amplitude. It is commonly used as...
Geometry and Cenozoic evolution of the Crimean fold-thrust belt from cross-section balancing and kinematic forward modeling
The Crimean fold-thrust belt comprises the onshore Crimean-dome fold-thrust belt and the offshore Sorokin accretionary wedge, a sub-surface imbricate stack with high oil and gas potential. We combine geomorphological and...
Earthquake in central Italy and velocities structure of the mantle
A three-dimensional P-velocity model of the European mantle built on the Taylor approximation made it possible to analyze the velocity structure of the mantle under the Mediterranean and, in particular, under Central Ita...
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)