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Density muon radiography of La Soufrière of Guadeloupe volcano: comparison with geological, electrical resistivity and gravity data

Abstract : Density muon radiography is a new method to determine the average density of geological bodies by measuring the attenuation produced by rocks on the flux of cosmic muons. We present such density radiographies obtained for the Soufri'ere of Guadeloupe lava dome, both in the north-south and east-west planes. These radiographies reveal the highly heterogeneous density structure of the volcano, with low-density regions corresponding to recognized hydrothermally altered areas. The main structures observed in the density radiographies correlate with anomalies in electrical resistivity cross-sections and a density model obtained from gravity data.
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N. Lesparre, Dominique Gibert, Jacques Marteau, Jean-Christophe Komorowski, Florence Nicollin, et al.. Density muon radiography of La Soufrière of Guadeloupe volcano: comparison with geological, electrical resistivity and gravity data. Geophysical Journal International, Oxford University Press (OUP), 2012, 190 (2), pp.1008-1019. ⟨10.1111/j.1365-246X.2012.05546.x⟩. ⟨insu-00814387⟩

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