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Localization of self-potential sources in volcano-electric effect with complex continuous wavelet transform and electrical tomography methods for an active volcano

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Academic year: 2021

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Figure

Figure 1. Cross-section of the plumbing system of the Piton de la Fournaise volcano [Le´nat et al., 2000].
Figure 4. DOP of an horizontal dipole source (q = 90), located at the depth z = 500 m and x = 2000 m.
Figure 7. 1993: DOP tomography. Reference level: no eruption. A reservoir (dipolar hydrothermal source) appears centred in z ’ 200 m, x ’ 2250 m with a penetration of 800 m.
Figure 10. 1998: CCWT of SP data. Volcanic eruption. A phase jump is detected in x 0 = 1075 m, z 0 = 32 m

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