Published September 4, 2023 | Version v1
Conference paper Open

Airborne magnetics as structural guide in the 3D inversion of Airborne EM data

  • 1. CGG, Carsten.Scholl@CGG.com
  • 2. CGG, Stephen.Hallinan@CGG.com
  • 3. CGG, Marianne.Parsons@CGG.com
  • 4. CGG, Tom.Kimura@CGG.com

Description

Airborne Magnetics and Electromagnetics surveys are widely used in mineral resource exploration. Beyond the sensitivity of both to certain mineral deposits, magnetics serves as a useful proxy for geological structure. We extend our previous work on cross -gradient, structurally-guided 3D EM inversions to use two dimensional gradients derived from pre-processed magnetic grids as a structural guide in inversions of AEM data sets We compare 3D resistivity inversion results obtained with this structural guiding approach to those without, for AEM data recorded in a survey in New Brunswick, Canada. This structurally-guided 3D inversion method using magnetics data is generic and can be applied to inversion of other geophysics data such as ground electromagnetics, etc.

Other

Open-Access Online Publication: November 1, 2023

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AEM2023_ID038.pdf

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