1887

Abstract

Summary

The Puy-les-Vignes district in France, part of the Limousin region, is being geophysically characterized due to its strategic mineral resources like tungsten, tin, and uranium. These deposits are difficult to detect geophysically due to limited magnetic or density contrasts and small scale. The study focuses on the Caillaudoux breccia pipe and combines airborne and ground geophysics—specifically gravity surveys and Electrical Resistivity Tomography (ERT) with Induced Polarization (IP)—to improve 3D geological modeling. A pole-dipole configuration was selected for the ERT/IP survey due to its balance between resolution and practicality. Legacy gravimetric and airborne electromagnetic (AEM) data interpretation guided the survey design. Modeling showed that extending source injection lines beyond the receiver array is more beneficial than denser sampling. Forward modeling and inversion were used to validate the setup, confirming it should improve imaging of the pipe structure. Ultimately, this multiphysics approach aims to enhance mineral exploration efficiency and identify hidden mineralized bodies at depth.

© EAGE Publications BV
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/content/papers/10.3997/2214-4609.202520241
2025-09-07
2026-02-06

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References

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/content/papers/10.3997/2214-4609.202520241
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Geophysical Characterization of Puy-Les-Vignes District (France): Focus on Les Caillaudoux Pipe
Conference Proceedings 2025, 1 (2025); https://doi.org/10.3997/2214-4609.202520241
/content/papers/10.3997/2214-4609.202520241
/content/papers/10.3997/2214-4609.202520241
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