Articles | Volume 14, issue 1
https://doi.org/10.5194/se-14-43-2023
https://doi.org/10.5194/se-14-43-2023
Method article
 | 
18 Jan 2023
Method article |  | 18 Jan 2023

Utilisation of probabilistic magnetotelluric modelling to constrain magnetic data inversion: proof-of-concept and field application

Jérémie Giraud, Hoël Seillé, Mark D. Lindsay, Gerhard Visser, Vitaliy Ogarko, and Mark W. Jessell

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Cited articles

Agostinetti, N. P. and Bodin, T.: Flexible Coupling in Joint Inversions: A Bayesian Structure Decoupling Algorithm, J. Geophys. Res.-Sol. Ea., 123, 8798–8826, https://doi.org/10.1029/2018JB016079, 2018. 
Anderson, C. G. and Logan, K. J.: The history and current status of geophysical exploration at the Osborne Cu & Au deposit, Mt. Isa, Explor. Geophys., 23, 1–7, https://doi.org/10.1071/EG992001, 1992. 
Astic, T. and Oldenburg, D. W.: A framework for petrophysically and geologically guided geophysical inversion using a dynamic Gaussian mixture model prior, Geophys. J. Int., 219, 1989–2012, https://doi.org/10.1093/gji/ggz389, 2019. 
Austin, J. and Blenkinsop, T.: The Cloncurry Lineament: Geophysical and geological evidence for a deep crustal structure in the Eastern Succession of the Mount Isa Inlier, Precambrian Res., 163, 50–68, https://doi.org/10.1016/j.precamres.2007.08.012, 2008. 
Austin, J. R., Schmidt, P. W., and Foss, C. A.: Magnetic modeling of iron oxide copper-gold mineralization constrained by 3D multiscale integration of petrophysical and geochemical data: Cloncurry District, Australia, Interpretation, 1, T63–T84, https://doi.org/10.1190/INT-2013-0005.1, 2013. 
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Short summary
We propose and apply a workflow to combine the modelling and interpretation of magnetic anomalies and resistivity anomalies to better image the basement. We test the method on a synthetic case study and apply it to real world data from the Cloncurry area (Queensland, Australia), which is prospective for economic minerals. Results suggest a new interpretation of the composition and structure towards to east of the profile that we modelled.