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Application of a Finite-difference Solver with a Contraction Preconditioner to 3D EM Modeling in Mineral ExplorationNormal access

Authors: N. Yavich, P. Pushkarev and M.S. Zhdanov
Event name: Near Surface Geoscience 2016 - First Conference on Geophysics for Mineral Exploration and Mining
Session: Poster Session I
Publication date: 04 September 2016
DOI: 10.3997/2214-4609.201602104
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 900.06Kb )
Price: € 20

This paper uses a novel approach to constructing an effective preconditioner for finite-difference (FD) electromagnetic modeling in applications to mineral exploration. This approach uses a FD contraction operator, similar to one developed for integral equation modeling. We demonstrate the effectiveness of this new modeling method and corresponding code in the sensitivity study of magnetotelluric data to an ore deposit, typical for Norilsk ore region.

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