Some features of the Central Arctic ocean structure according to results of magnetovariation data modeling factoring in the equiva-lent source
Category: 15-3
UDC 550.382
I.L. Trofimov(1), M.S. Zhdanov(2), S.M. Korotaev(1), M.O. Kruglyakov(3), D.A. Orekhova(1), I.V. Popova(1), V.S. Shneyer(1), Yu.G. Schors(4)
(1) Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, Russia
(2) Consortium for Electromagnetic Modeling and Inversion, Salt Lake City, Utah, USA
(3) Lomonosov Moscow State University, Moscow, Russia
(4) National Research Centre “Kurchatov Institute”, Moscow, Russia
Abstract. Processing and interpretation of magnetovariation observations at the “North Pole” drift stations have been fulfilled based on a new theory of complex magnetic induction vectors (MIV). The location of magnetic variation equivalent source has been found theoretically and by using neuron-net modeling. Taking into account the source location, a 3D simulation of geoelectric cross-section in the near-pole region of the Arctic Ocean has been conducted. As a result the geoelectric model of cross-section over a region-size area has been created and new properties of lithosphere structure up to 400 km deep have been revealed, which is of importance for the problem of origin of the Arctic Ocean.
Keywords: Arctic Ocean, geoelectric, magnetovariation profiling, 3D-simulation, neuro-net inversion.
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