1887

Abstract

Summary

This work presents the two-dimensional stochastic inverse modelling of a magnetotelluric profile from the Larderello geothermal area (Italy). For the first time, the algorithm Particle Swarm Optimization was applied to this kind of field data to investigate a complex electrical structure without the initial assumption given by an external starting model driving the inversion. The outcome was in good agreement with results of previous research with the advantage of a lower data misfit as well as the contribution that the modelling was not initially constrained by a priori information (e.g., from well-log or other geophysical methods) that, in geothermal areas, can be unavailable or even misleading.

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/content/papers/10.3997/2214-4609.201902507
2019-09-08
2024-03-29
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References

  1. Candansayar, M. E.
    [2008] Two-dimensional inversion of magnetotelluric data with consecutive use of conjugate gradient and least-squares solution with singular value decomposition algorithms.Geophysical Prospecting, 56, 141–157.
    [Google Scholar]
  2. De Matteis, R., Vanorio, T., Zollo, A., Ciuffi, S., Fiordelisi, A. and Spinelli, E.
    [2008] Threedimensional tomography and rock properties of the Larderello-Travale geothermal area, Italy.Physics of the Earth and Planetary Interiors, 168, 37–48.
    [Google Scholar]
  3. Fiordelisi, A., Mackie, R., Manzella, A., Watts, D. and Zaja, A.
    [1998] Electrical features of deep structures in Southern Tuscany (Italy).Annali di Geofisica, 41, 333–341.
    [Google Scholar]
  4. Ledo, J.
    [2005] 2-D versus 3-D Magnetotelluric data interpretation, Surveys in Geophysics26, 511–543, DOI 10.1007/s10712‑005‑1757‑8
    https://doi.org/10.1007/s10712-005-1757-8 [Google Scholar]
  5. Manzella, A.
    [2004] Resistivity and heterogeneity of Earth crust in an active tectonic region, Southern Tuscany (Italy).Annals of Geophysics, 47(1), 107–118.
    [Google Scholar]
  6. Pace, F., Santilano, A. and Godio, A.
    [2019]. Particle Swarm Optimization of 2D Magnetotelluric data.Geophysics, 84(3), E125–E141.
    [Google Scholar]
  7. Rodi, W., and Mackie, R.L.
    [2001] Nonlinear conjugate gradients algorithm for 2-D magnetotelluric inversion.Geophysics, 66, 174–187.
    [Google Scholar]
  8. Santilano, A., Godio, A., Manzella, A. and Dini, I.
    [2015] Electrical Resistivity Structures and their Relation to Geological Features at the Larderello Geothermal Field (Italy).21st European Meeting of Environmental and Engineering Geophysics, EAGE, Ext. Abstracts, Tu21B08.
    [Google Scholar]
  9. Santilano, A.
    [2017] Deep geothermal exploration by means of electromagnetic methods: New insights from the Larderello geothermal field (Italy). Ph.D. thesis, Politecnico di Torino.
    [Google Scholar]
  10. Siripunvaraporn, W.
    [2012] Three-Dimensional Magnetotelluric Inversion: An Introductory Guide for Developers and Users.Surveys in Geophysics, 33, 5–27.
    [Google Scholar]
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