N. Adams, B. Houghton, and W. Hildreth, Abrupt transitions during sustained explosive eruptions: examples from the 1912 eruption of Novarupta, Alaska, Bulletin of Volcanology, vol.131, issue.2, pp.189-206, 2006.
DOI : 10.1007/s00445-006-0067-4

M. Bernard, M. Zamora, Y. Geraud, and G. Boudon, Transport properties of pyroclastic 541 rocks from Montagne Pelee volcano (Martinique, Lesser Antilles) Journal of, p.542, 2007.

J. Blower, J. Keating, H. Mader, and J. Phillips, Inferring volcanic degassing processes from vesicle size distributions, Geophysical Research Letters, vol.43, issue.8, pp.347-350, 2001.
DOI : 10.1029/2000GL012188

C. Bouvet-de-maisonneuve, O. Bachmann, and A. Burgisser, Characterization of juvenile 546 pyroclasts frmo the Kos Plateau Tuf (Aegean Arc): insights into the eruptive dynamics 547 of a rhyolitic caldera-forming eruption. Bull Volcanol, 2008.

H. Cheng and R. Lemlich, Errors in the measurement of bubble size distribution in foam, Industrial & Engineering Chemistry Fundamentals, vol.22, issue.1, pp.105-109, 1983.
DOI : 10.1021/i100009a018

A. Clarke, A. Neri, B. Voight, G. Macedonio, and T. Druitt, Computational modelling of 552 the transient dynamics of the, vulcanian explosions at Soufrière Hills 553, 1997.

A. Clarke, S. Stephens, R. Teasdale, R. Sparks, and K. Diller, Petrologic constraints on the decompression history of magma prior to Vulcanian explosions at the Soufri??re Hills volcano, Montserrat, Journal of Volcanology and Geothermal Research, vol.161, issue.4, pp.261-274, 2007.
DOI : 10.1016/j.jvolgeores.2006.11.007

N. Cluzel, D. Laporte, A. Provost, and I. Kannewischer, Kinetics of heterogeneous bubble nucleation in rhyolitic melts: implications for the number density of bubbles in volcanic conduits and for pumice textures, Contributions to Mineralogy and Petrology, vol.102, issue.6, pp.745-763, 2008.
DOI : 10.1007/s00410-008-0313-1
URL : https://hal.archives-ouvertes.fr/hal-00338420

A. Costa, Permeability-porosity relationship: A reexamination of the Kozeny-Carman equation based on a fractal pore-space geometry assumption, Geophysical Research Letters, vol.91, issue.2, p.565, 2006.
DOI : 10.1029/2005GL025134

J. Eichleberger, C. Carrigan, H. Westrich, and R. Price, Non- 566 explosive silicic volcanism, Letters Nature, vol.33, issue.323, pp.598-602, 1986.

W. Degruyter, O. Bachmann, and A. Burgisser, Controls on magma permeability in the 568 volcanic conduit during the climactic phase of the Kos Plateau Tuff eruption, 2009.

. Arc, Bull Volcanol DOI 10

J. Devine, M. Rutherford, G. Norton, . Young, and . Sr, Magma storage region processes 571 inferred from geochemistry of Fe-Ti oxides in andesitic magma, 2003.

K. Diller, A. Clarke, B. Voight, and A. Neri, Mechanisms of conduit plug formation: Implications for vulcanian explosions, Geophysical Research Letters, vol.63, issue.20, pp.20302-575, 2006.
DOI : 10.1029/2006GL027391

R. Herd, R. Lockett, G. Ryan, and B. Voight, Episodes of cyclic vulcanian explosive 577 activity with fountain collapse at Soufrière Hills Volcano, p.578, 2002.

J. Eichelberger, C. Carrigan, H. Westrich, and R. Price, Non-explosive silicic volcanism, Nature, vol.51, issue.6089, pp.598-602, 1986.
DOI : 10.1038/323598a0

Y. Formenti, T. Druitt, and K. Kelfoun, Characterisation of the 1997 Vulcanian explosions 583, 2003.

H. Gaonac-'h, S. Lovejoy, J. Stix, D. H. Schertzer, J. Stix et al., Scaling effects on vesicle shape, size and heterogeneity of lavas from Mount Etna, Journal of Volcanology and Geothermal Research, vol.74, issue.1-2, pp.131-153, 1996.
DOI : 10.1016/S0377-0273(96)00045-5

J. Gardner, Heterogeneous bubble nucleation in highly viscous silicate melts during 589 instantaneous decompression from high pressure, Chem. Geol, issue.236, pp.1-12, 2007.

H. Gonnerman and M. Manga, The Fluid Mechanics Inside a Volcano, Annual Review of Fluid Mechanics, vol.39, issue.1, p.591, 2007.
DOI : 10.1146/annurev.fluid.39.050905.110207

B. Kennedy, O. Spieler, B. Scheu, U. Kueppers, J. Taddeucci et al., Conduit implosion during Vulcanian eruptions, Geology, vol.33, issue.7, pp.581-584, 2005.
DOI : 10.1130/G21488.1

R. Ketcham, Computational methods for quantitative analysis of three-dimensional features in geological specimens, Geosphere, vol.1, issue.1, pp.32-41, 2005.
DOI : 10.1130/GES00001.1

R. Ketcham, Three-dimensional grain fabric measurements using high-resolution X-ray computed tomography, Journal of Structural Geology, vol.27, issue.7, pp.1217-1228, 2005.
DOI : 10.1016/j.jsg.2005.02.006

C. Klug and K. Cashman, Permeability development in vesiculating magmas: implications for fragmentation, Bulletin of Volcanology, vol.58, issue.2-3, pp.87-100, 1996.
DOI : 10.1007/s004450050128

C. Klug, K. Cashman, and C. Bacon, Structure and physical characteristics of pumice 603 from the climatic eruption of Mount Mazama (Crater Lake), Oregon. Bull. Volcanol, vol.604, issue.64, pp.486-501, 2002.

W. Lindquist, 3DMA general users manual, 1999.

W. Lindquist and A. Venkatarangan, Investigating 3D geometry of porous media from 608 high resolution images. Physics and Chemistry of the Earth Part a-Solid Earth and 609, 1999.

W. Lindquist, A. Venkatarangan, J. Dunsmuir, and T. Wong, Pore and throat size distributions measured from synchrotron X-ray tomographic images of Fontainebleau sandstones, Journal of Geophysical Research: Solid Earth, vol.100, issue.B9, pp.21509-21527, 2000.
DOI : 10.1029/2000JB900208

R. Mason, A. Starostin, O. Melnik, and R. Sparks, From Vulcanian explosions to sustained explosive eruptions: The role of diffusive mass transfer in conduit flow dynamics, Journal of Volcanology and Geothermal Research, vol.153, issue.1-2, pp.148-165, 2006.
DOI : 10.1016/j.jvolgeores.2005.08.011

O. Melnik and R. Sparks, Modelling of conduit flow dynamics during explosive activity, p.617, 2002.

A. Namiki and M. Manga, Transition between fragmentation and permeable outgassing of low viscosity magmas, Journal of Volcanology and Geothermal Research, vol.169, issue.1-2, pp.48-60, 2008.
DOI : 10.1016/j.jvolgeores.2007.07.020

M. Polacci, D. Baker, L. Mancini, G. Tromba, and F. Zanini, Three-dimensional 627 investigation of volcanic textures by X-ray microtomography and implications for 628 conduit processes, Geophysical Research Letters, vol.33, issue.13, pp.629-639, 2006.

M. Polacci, D. Baker, B. Liping, and L. Mancini, Large vesicles record pathways of degassing at basaltic volcanoes, Bulletin of Volcanology, vol.158, issue.9, pp.1023-1029, 2008.
DOI : 10.1007/s00445-007-0184-8

M. Polacci, M. Burton, L. Spina, A. Murè, F. Favretto et al., The role of syn- 633, 2009.

M. Polacci, D. Baker, L. Mancini, S. Favretto, and R. Hill, Vesiculation in magmas from 636, 2009.

M. Prodanovic, W. Lindquist, and R. Seright, Porous structure and fluid partitioning in 639 polyethylene cores from 3D X-ray microtomographic imaging, Journal of Colloid, p.640, 2006.

M. Prodanovic, W. Lindquist, and R. Seright, 3D image-based characterization of fluid displacement in a Berea core, Advances in Water Resources, vol.30, issue.2, pp.214-226, 2007.
DOI : 10.1016/j.advwatres.2005.05.015

M. Saar and M. Manga, permeability-porosity relationship in vesicular baslts, Geophysical Research Letters, vol.644, issue.261, pp.111-114, 1999.

D. Sahagian and A. Proussevitch, 3D particle size distributions from 2D observations: stereology for natural applications, Journal of Volcanology and Geothermal Research, vol.84, issue.3-4, pp.173-196, 1998.
DOI : 10.1016/S0377-0273(98)00043-2

T. Shea, B. Houghton, L. Gurioli, K. Cashman, J. Hammer et al., Textural 648 studies of vesicles in volcanic rocks: An integrated methodology, J. Volcanol, 2010.

H. Shin, W. Lindquist, D. Sahagian, and S. Song, Analysis of the vesicular structure of basalts, Computers & Geosciences, vol.31, issue.4, pp.473-487, 2005.
DOI : 10.1016/j.cageo.2004.10.013

O. Spieler, D. Dingwell, and M. Alidibirov, Magma fragmentation speed: an experimental determination, Journal of Volcanology and Geothermal Research, vol.129, issue.1-3, pp.109-123, 2004.
DOI : 10.1016/S0377-0273(03)00235-X

O. Spieler, B. Kennedy, U. Kueppers, D. Dingwell, B. Scheu et al., The fragmentation threshold of pyroclastic rocks, Earth and Planetary Science Letters, vol.226, issue.1-2, pp.139-148, 2004.
DOI : 10.1016/j.epsl.2004.07.016

A. Toramaru, BND (bubble number density) decompression rate meter for explosive, 2006.