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Abstract

Summary

The decorated cave in Dordogne needs more attention while being studied and conserved. Geophysical methods enable in a non-invasive way to detect the underground environment of the decorated cave. Associated with the analysis of the effective rainfall (groundwater recharge) in this site and the flow in the cave, the Electrical Resistivity Tomography monitoring using pole-dipole and gradient arrays has identified a zone which probably stores water in relation with the cave. There is a high electrical contrast between the surrounding limestone and the probably recharge zone. Then, with a multivariate analysis through the resistivity values allows us to characterize the model blocks showing a specific behavior over time, especially the blocks the lowest electrical resistivity. The main result of this study is that these blocks are assumed to be probably a part of the recharge area; systematic electrical survey after raining event could be used to predict the beginning of the underground flow in order to give advice for preserving the Lascaux Cave.

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/content/papers/10.3997/2214-4609.20141976
2014-09-08
2024-04-23

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References

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How to Characterize a Recharge Area by ERT Time Lapse and Cluster Analysis - Application to Lascaux Cave
Conference Proceedings 2014, 1 (2014); https://doi.org/10.3997/2214-4609.20141976
/content/papers/10.3997/2214-4609.20141976
/content/papers/10.3997/2214-4609.20141976
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