Open AccessDensity muon radiography of La Soufrière of Guadeloupe volcano: comparison with geological, electrical resistivity and gravity data
Author(s) -
Lesparre Nolwenn,
Gibert Dominique,
Marteau Jacques,
Komorowski JeanChristophe,
Nicollin Florence,
Coutant Olivier
Publication year - 2012
Publication title -
geophysical journal international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0956-540X
DOI - 10.1111/j.1365-246x.2012.05546.x
Subject(s) - volcano , geology , electrical resistivity and conductivity , lava , specific gravity , seismology , mineralogy , physics , quantum mechanics
SUMMARY 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 Soufrière 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.