F. Albarède, B. Luais, G. Fitton, M. Semet, E. Kaminski et al., The Geochemical Regimes of Piton de la Fournaise Volcano (Reunion) During the Last 530 000 Years, Journal of Petrology, vol.38, issue.2, pp.171-201, 1997.
DOI : 10.1093/petroj/38.2.171

P. Allard, J. Carbonnelle, D. Dajlevic, J. Lebronec, P. Morel et al., Eruptive and diffuse emissions of CO2 from Mount Etna, Nature, vol.351, issue.6325, pp.387-391, 1991.
DOI : 10.1038/351387a0

R. Amundson, L. Stern, T. Baisden, and Y. Wang, The isotopic composition of soil and soil-respired CO2, Geoderma, vol.82, issue.1-3, pp.1-3, 1998.
DOI : 10.1016/S0016-7061(97)00098-0

R. Azzaro, S. Branca, S. Giammanco, S. Gurrieri, R. Rasà et al., New evidence for the form and extent of the Pernicana Fault System (Mt. Etna) from structural and soil???gas surveying, Journal of Volcanology and Geothermal Research, vol.84, issue.1-2, pp.143-152, 1998.
DOI : 10.1016/S0377-0273(98)00036-5

P. Bachèlery, Le Piton de la Fournaise (Ile de la Reunion) -Etude volcanologique, structurale et petrologique, 1981.

I. Basile-doelsch, R. Amundson, W. E. Stone, D. Borschneck, J. Y. Bottero et al., Mineral control of carbon pools in a volcanic soil horizon, Geoderma, vol.137, issue.3-4, pp.477-489, 2007.
DOI : 10.1016/j.geoderma.2006.10.006

URL : https://hal.archives-ouvertes.fr/hal-00725084

J. Battaglia, V. Ferrazzini, T. Staudacher, K. Aki, and J. L. Cheminée, Pre-eruptive migration of earthquakes at the Piton de la Fournaise volcano (Réunion Island) Geophys, 2005.

L. Bennati, A. Finizola, J. A. Walker, D. L. Lopez, I. C. Higuera-diaz et al., Fluid circulation in a complex volcano-tectonic setting, inferred from self-potential and soil CO2 flux surveys: The Santa Mar??a???Cerro Quemado???Zunil volcanoes and Xela caldera (Northwestern Guatemala), Journal of Volcanology and Geothermal Research, vol.199, issue.3-4, 2011.
DOI : 10.1016/j.jvolgeores.2010.11.008

A. Bernard and M. Munschy, Were the Mascarene and Laxmi Basins (western Indian Ocean) formed at the same spreading centre? CR Acad Sci Paris Sci de la Terre et des Planètes, Earth Planet. Sci, vol.330, pp.777-783, 2000.

P. Boivin and P. Bachèlery, Petrology of 1977 to 1998 eruptions of Piton de la Fournaise, La R??union Island, Journal of Volcanology and Geothermal Research, vol.184, issue.1-2, pp.109-125, 2009.
DOI : 10.1016/j.jvolgeores.2009.01.012

F. L. Bonali, C. Corazzato, and A. Tibaldi, Identifying rift zones on volcanoes: an example from La R??union island, Indian Ocean, Bulletin of Volcanology, vol.7, issue.4, pp.347-366, 2011.
DOI : 10.1016/0377-0273(80)90040-2

A. Bonforte, C. Federico, S. Giammanco, F. Guglielmino, M. Liuzzo et al., Soil gases and SAR measurements reveal hidden faults on the sliding flank of Mt. Etna (Italy), Journal of Volcanology and Geothermal Research, vol.251, pp.27-40, 2013.
DOI : 10.1016/j.jvolgeores.2012.08.010

G. Boudoire, Y. A. Brugier, D. Muro, A. Wörner, G. Arienzo et al., Deep magma storage and migration at oceanic volcanic islands: insights from Piton de la Fournaise (La Réunion Island, Indian Ocean), J. Petrol, 2017.

G. Boudoire, D. Muro, A. Liuzzo, M. Ferrazzini, V. Peltier et al., New perspectives for the volcanic monitoring in tropical environment: continuous soil CO 2 measurements at Piton de la Fournaise volcano (La Réunion Island), Geophys. Res. Lett, 2017.

F. Brenguier, N. Shapiro, M. Campillo, A. Nercessian, and V. Ferrazzini, 3-D surface wave tomography of the Piton de la Fournaise volcano using seismic noise correlations, Geophysical Research Letters, vol.151, issue.13, p.2305, 2007.
DOI : 10.1007/978-94-011-3568-9_63

URL : https://hal.archives-ouvertes.fr/hal-00145673

H. Bureau, F. Pineau, N. Metrich, M. P. Semet, and M. Javoy, A melt and fluid inclusion study of the gas phase at Piton de la Fournaise volcano (R??union Island), Chemical Geology, vol.147, issue.1-2, pp.115-130, 1998.
DOI : 10.1016/S0009-2541(97)00176-9

M. R. Burton, G. M. Sawyer, and D. Granieri, Deep Carbon Emissions from Volcanoes, Reviews in Mineralogy and Geochemistry, vol.75, issue.1, pp.323-354, 2013.
DOI : 10.2138/rmg.2013.75.11

URL : http://rimg.geoscienceworld.org/content/gsrmg/75/1/323.full.pdf

M. Camarda, S. Gurrieri, and M. Valenza, CO2 flux measurements in volcanic areas using the dynamic concentration method: influence of soil permeability, J. Geophys. Res, vol.111, 2006.

M. Camarda, S. Gurrieri, and M. Valenza, In situ Permeability Measurements Based on a Radial Gas Advection Model: Relationships Between Soil Permeability and Diffuse CO2 Degassing in Volcanic Areas, Pure and Applied Geophysics, vol.163, issue.4, pp.897-914, 2006.
DOI : 10.1007/s00024-006-0045-y

A. Cannata, G. Giudice, S. Gurrieri, P. Montalto, S. Alparone et al., Relationship between soil CO2 flux and volcanic tremor at Mt. Etna: Implications for magma dynamics, Environmental Earth Sciences, vol.55, issue.3, pp.477-489, 2010.
DOI : 10.1016/B978-0-444-41141-9.50008-5

A. Cannata, G. Spedalieri, B. Behncke, F. Cannavò, D. Grazia et al., Pressurization and depressurization phases inside the plumbing system of Mount Etna volcano: Evidence from a multiparametric approach, Journal of Geophysical Research: Solid Earth, vol.93, issue.B5, pp.5965-5982, 2015.
DOI : 10.1029/JB093iB05p04249

. Fig, Distribution of seismic events since 1996 below the western flank of the volcano at mantellic level. Depth of hypocenters projected (a) along the N130° orientation; (b) along a N40° orientation with only events detected below Le Tampon, La Plaine des Cafres and La Plaine des Palmistes and; (c) along a N40° orientation taking into account only the NWRZ

T. E. Cerling, D. K. Solomon, J. A. Quade, and J. R. Bowman, On the isotopic composition of carbon in soil carbon dioxide, Geochimica et Cosmochimica Acta, vol.55, issue.11, pp.3403-34050016, 1991.
DOI : 10.1016/0016-7037(91)90498-T

L. Chevallier, Structures et évolution du volcan Piton des Neiges, île de la Réunion: Leurs relations avec les structures du Bassin des Mascareignes, Océan Indien occidental, 1979.

L. Chevallier and P. Bachèlery, Evolution structurale du volcan actif du Piton de la Fournaise, Ile de la R??union ??? Oc??an indien occidental, Bulletin Volcanologique, vol.271, issue.3/4, pp.723-741, 1981.
DOI : 10.1007/BF02597094

G. Chiodini, R. Cioni, M. Guidi, B. Raco, and L. Marini, Soil CO2 flux measurements in volcanic and geothermal areas, Applied Geochemistry, vol.13, issue.5, pp.543-552, 1998.
DOI : 10.1016/S0883-2927(97)00076-0

G. Chiodini, F. Frondini, C. Cardellini, D. Granieri, L. Marini et al., CO2 degassing and energy release at Solfatara volcano, Campi Flegrei, Italy, J.Geophys. Res, vol.106, 2001.
DOI : 10.1029/2001jb000246

G. Chiodini, S. Caliro, C. Cardellini, R. Avino, D. Granieri et al., Carbon isotopic composition of soil CO2 efflux, a powerful method to discriminate different sources feeding soil CO2 degassing in volcanic-hydrothermal areas, Earth and Planetary Science Letters, vol.274, issue.3-4, pp.372-379, 2008.
DOI : 10.1016/j.epsl.2008.07.051

D. Coppola, D. Muro, A. Peltier, A. Villeneuve, N. Ferrazzini et al., Shallow system rejuvenation and magma discharge trends at Piton de la Fournaise volcano (La R??union Island), Shallow system rejuvenation and magma discharge trends at Piton de la Fournaise volcano, pp.13-24, 2017.
DOI : 10.1016/j.epsl.2017.01.024

F. M. Deegan, V. R. Troll, C. Freda, V. Misiti, J. P. Chadwick et al., Magma???Carbonate Interaction Processes and Associated CO2 Release at Merapi Volcano, Indonesia: Insights from Experimental Petrology, Journal of Petrology, vol.51, issue.5, pp.1027-1051, 2010.
DOI : 10.1093/petrology/egq010

C. Deniel, G. Kieffer, and J. Lecoindre, New 230Th-238U and 14C age determinations from Piton des Neiges volcano, Reunion ??? A revised chronology for the Differentiated Series, Journal of Volcanology and Geothermal Research, vol.51, issue.3, pp.253-267, 1992.
DOI : 10.1016/0377-0273(92)90126-X

D. Muro, A. Métrich, N. Allard, P. Aiuppa, A. Burton et al., Magma Degassing at Piton de la Fournaise Volcano, Active Volcanoes of the Southwest Indian Ocean: Piton de la Fournaise and Karthala. Active Volcanoes of the World, 2016.

I. S. Diliberto, S. Gurrieri, and M. Valenza, Relationships between diffuse CO 2 emissions and volcanic activity on the island of Vulcano (Aeolian Islands, Italy) during the period 1984-1994, Bulletin of Volcanology, vol.64, issue.3-4, pp.219-228, 1984.
DOI : 10.1007/s00445-001-0198-6

S. M. Dionis, G. Melián, F. Rodríguez, P. A. Hernández, E. Padrón et al., Diffuse volcanic gas emission and thermal energy release from the summit crater of Pico do Fogo, Cape Verde, Bulletin of Volcanology, vol.179, issue.B10, 2015.
DOI : 10.1016/j.jvolgeores.2008.10.009

J. Elio, M. F. Ortega, B. Nisi, L. F. Mazadiego, O. Vaselli et al., A multi-statistical approach for estimating the total output of CO2 from diffuse soil degassing by the accumulation chamber method, International Journal of Greenhouse Gas Control, vol.47, pp.351-363, 2016.
DOI : 10.1016/j.ijggc.2016.02.012

F. Feder, Soil map update: Procedure and problems encountered for the island of R??union, CATENA, vol.110, pp.215-224, 2013.
DOI : 10.1016/j.catena.2013.06.019

A. Finizola, F. Sortino, J. F. Lénat, M. Aubert, M. Ripepe et al., The summit hydrothermal system of Stromboli. New insights from self-potential, temperature, CO 2 and fumarolic fluid measurements, with structural and monitoring implications, Bulletin of Volcanology, vol.65, issue.7, pp.486-504, 2003.
DOI : 10.1007/s00445-003-0276-z

URL : https://hal.archives-ouvertes.fr/hal-01452541

A. Finizola, J. F. Lénat, O. Macedo, D. Ramos, J. C. Thouret et al., Fluid circulation and structural discontinuities inside Misti volcano (Peru) inferred from self-potential measurements, Journal of Volcanology and Geothermal Research, vol.135, issue.4, pp.343-360, 2004.
DOI : 10.1016/j.jvolgeores.2004.03.009

URL : https://hal.archives-ouvertes.fr/hal-01452539

J. Folio, Distribution de la perméabilité dans le massif du Piton de la Fournaise: apport à la connaissance du fonctionnement hydrogéologique d'un volcan-bouclier, 2001.

F. R. Fontaine, G. Barruol, H. Tkal?i?, I. Wölbern, G. Rümpker et al., Crustal and uppermost mantle structure variation beneath La R??union hotspot track, Geophysical Journal International, vol.203, issue.1, pp.107-126, 2015.
DOI : 10.1093/gji/ggv279

URL : http://hal.univ-reunion.fr/hal-01236131/document

J. Gallart, L. Driad, P. Charvis, M. Sapin, A. Hirn et al., Perturbation to the lithosphere along the hotspot track of La R??union from an offshore-onshore seismic transect, Journal of Geophysical Research: Solid Earth, vol.108, issue.1-4, pp.2895-2908, 1999.
DOI : 10.1111/j.1365-246X.1992.tb00836.x

S. Giammanco and P. Bonfanti, Cluster analysis of soil CO2 data from Mt. Etna (Italy) reveals volcanic influences on temporal and spatial patterns of degassing, Bulletin of Volcanology, vol.56, issue.2, pp.201-218, 2009.
DOI : 10.1007/s00445-003-0322-x

S. Giammanco, S. Gurrieri, and M. Valenza, Soil CO2 degassing on Mt Etna (Sicily) during the period 1989?1993: discrimination between climatic and volcanic influences, Bulletin of Volcanology, vol.161, issue.3, pp.52-60, 1995.
DOI : 10.1007/BF00298707

S. Giammanco, S. Gurrieri, and M. Valenza, Soil CO2 degassing along tectonic structures of Mount Etna (Sicily): the Pernicana fault, Applied Geochemistry, vol.12, issue.4, pp.429-436, 1997.
DOI : 10.1016/S0883-2927(97)00011-5

S. Giammanco, M. Ottaviani, M. Valenza, E. Veschetti, E. Principio et al., MAJOR AND TRACE ELEMENTS GEOCHEMISTRY IN THE GROUND WATERS OF A VOLCANIC AREA: MOUNT ETNA (SICILY, ITALY), Water Research, vol.32, issue.1, pp.19-30, 1998.
DOI : 10.1016/S0043-1354(97)00198-X

S. Giammanco, S. Gurrieri, and M. Valenza, Fault-controlled Soil CO2 Degassing and Shallow Magma Bodies: Summit and Lower East Rift of Kilauea Volcano (Hawaii), 1997, Pure and Applied Geophysics, vol.163, issue.4, pp.853-867, 1997.
DOI : 10.1007/s00024-006-0039-9

S. Giammanco, F. Bellotti, G. Groppelli, and A. Pinton, Statistical analysis reveals spatial and temporal anomalies of soil CO2 efflux on Mount Etna volcano (Italy), Journal of Volcanology and Geothermal Research, vol.194, issue.1-3, pp.1-14, 2010.
DOI : 10.1016/j.jvolgeores.2010.04.006

P. Y. Gillot and P. Nativel, Eruptive history of the Piton de la Fournaise volcano, Reunion Island, Indian Ocean, Journal of Volcanology and Geothermal Research, vol.36, issue.1-3, pp.53-65, 1989.
DOI : 10.1016/0377-0273(89)90005-X

P. J. González, S. V. Samsonov, S. Pepe, K. F. Tiampo, P. Tizzani et al., Magma storage and migration associated with the 2011-2012 El Hierro eruption: Implications for crustal magmatic systems at oceanic island volcanoes, Journal of Geophysical Research: Solid Earth, vol.30, issue.18, pp.4361-4377, 2013.
DOI : 10.1029/2003GL018014

D. Granieri, G. Chiodini, W. Marzocchi, and R. Avino, Continuous monitoring of CO 2 soil diffuse degassing at Phlegraean Fields (Italy): influence of environmental and volcanic parameters, Earth and Planetary Science Letters, vol.212, issue.1-2, pp.167-179, 2003.
DOI : 10.1016/S0012-821X(03)00232-2

D. Granieri, R. Avino, and G. Chiodini, Carbon dioxide diffuse emission from the soil: ten years of observations at Vesuvio and Campi Flegrei (Pozzuoli), and linkages with volcanic activity, Bulletin of Volcanology, vol.34, issue.13, pp.102-118, 2010.
DOI : 10.1007/s00445-009-0304-8

S. Gurrieri and M. Valenza, Gas transport in natural porous mediums: a method for measuring CO2 flows from the ground in volcanic and geothermal areas, Rend. Soc. Ital. Mineral. Petrol, vol.43, pp.1151-1158, 1988.

S. Gurrieri, M. Liuzzo, and G. Giudice, Continuous monitoring of soil CO2 flux on Mt. Etna: The 2004?2005 eruption and the role of regional tectonics and volcano tectonics, J. Geophys. Res, vol.113, 2008.

P. A. Hernández, N. M. Pérez, T. Fredriksson, J. Egbert, E. Ilyinskaya et al., Diffuse volcanic degassing and thermal energy release from Hengill volcanic system, Iceland, Diffuse volcanic degassing and thermal energy release from Hengill volcanic system, pp.2435-2448, 2012.
DOI : 10.1016/j.jvolgeores.2008.10.009

W. P. Irwin and I. Barnes, Tectonic relations of carbon dioxide discharges and earthquakes, Journal of Geophysical Research, vol.2, issue.2, 1980.
DOI : 10.1130/0016-7606(1970)81[2875:ERIOTS]2.0.CO;2

J. L. Join, J. L. Folio, and B. Robineau, Aquifers and groundwater within active shield volcanoes. Evolution of conceptual models in the Piton de la Fournaise volcano, Journal of Volcanology and Geothermal Research, vol.147, issue.1-2, 2005.
DOI : 10.1016/j.jvolgeores.2005.03.013

URL : http://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers16-06/010036696.pdf

A. De-junet, I. Basile-doelsch, D. Borschneck, A. Masion, S. Legros et al., Characterisation of organic matter from organo-mineral complexes in an Andosol from Reunion Island, Journal of Analytical and Applied Pyrolysis, vol.99, pp.92-100, 2013.
DOI : 10.1016/j.jaap.2012.10.020

URL : https://hal.archives-ouvertes.fr/hal-00813788

J. F. Lénat, B. Gibert-malengreau, and A. Galdeano, A new model for the evolution of the volcanic island of R??union (Indian Ocean), Journal of Geophysical Research: Solid Earth, vol.19, issue.12, pp.8645-8663, 2001.
DOI : 10.1029/92GL01125

J. F. Lénat, P. Bachèlery, and O. Merle, Anatomy of Piton de la Fournaise volcano (La R??union, Indian Ocean), Bulletin of Volcanology, vol.24, issue.1-2, pp.1945-1961, 2012.
DOI : 10.1023/B:GEOP.0000004188.67923.ac

O. Lengliné, Z. Duputel, and V. Ferrazzini, Uncovering the hidden signature of a magmatic recharge at Piton de la Fournaise volcano using small earthquakes, Geophysical Research Letters, vol.42, issue.47, 2016.
DOI : 10.1002/2015GL065165

M. Liuzzo, D. Muro, A. Giudice, G. Michon, L. Ferrazzini et al., New evidence of CO2 soil degassing anomalies on Piton de la Fournaise volcano and the link with volcano tectonic structures, Geochem. Geophys. Geosyst, vol.16, 2015.
URL : https://hal.archives-ouvertes.fr/hal-01351773

B. Marty, V. Meynier, E. Nicolini, E. Griesshaber, and J. P. Toutain, Geochemistry of gas emanations: A case study of the R??union Hot Spot, Indian Ocean, Applied Geochemistry, vol.8, issue.2, pp.141-152, 1993.
DOI : 10.1016/0883-2927(93)90030-K

F. Massin, Transferts et Stockages Magmatiques au Piton de la Fournaise, 2009.
URL : https://hal.archives-ouvertes.fr/tel-00710063

I. Mcdougall, The geochronology and evolution of the young volcanic island of R??union, Indian Ocean, Geochimica et Cosmochimica Acta, vol.35, issue.3, pp.261-288, 1971.
DOI : 10.1016/0016-7037(71)90037-8

S. Michel and J. Zlotnicki, Self-potential and magnetic surveying of La Fournaise volcano (R??union Island): Correlations with faulting, fluid circulation, and eruption, Journal of Geophysical Research: Solid Earth, vol.38, issue.6, 1998.
DOI : 10.5636/jgg.46.797

L. Michon, F. Saint-ange, P. Bachelery, N. Villeneuve, and T. Staudacher, Role of the structural inheritance of the oceanic lithosphere in the magmato-tectonic evolution of Piton de la Fournaise volcano (La R??union Island), Journal of Geophysical Research: Solid Earth, vol.40, issue.B3, pp.1-21, 2007.
DOI : 10.1016/0377-0273(90)90121-U

L. Michon, D. Muro, A. Villeneuve, N. Saint-marc, C. Fadda et al., Explosive activity of the summit cone of Piton de la Fournaise volcano (La R??union island): A historical and geological review, Journal of Volcanology and Geothermal Research, vol.264, pp.117-133, 2013.
DOI : 10.1016/j.jvolgeores.2013.06.012

L. Michon, V. Ferrazzini, D. Muro, A. Villeneuve, N. Famin et al., Rift zones and magma plumbing system of Piton de la Fournaise volcano: How do they differ from Hawaii and Etna?, Journal of Volcanology and Geothermal Research, vol.303, pp.112-129, 2015.
DOI : 10.1016/j.jvolgeores.2015.07.031

URL : https://hal.archives-ouvertes.fr/hal-01241283

L. Michon, J. F. Lénat, P. Bachèlery, D. Muro, and A. , Geology and Morphostructural Evolution of Piton de la Fournaise, Active Volcanoes of the Southwest Indian Ocean: Piton de la Fournaise and Karthala. Active Volcanoes of the World, 2016.
DOI : 10.1007/978-3-642-31395-0_4

URL : https://hal.archives-ouvertes.fr/hal-01147341

P. Moldrup, S. Yoshikawa, T. Olesen, T. Komatsu, and D. E. Rolston, Gas Diffusivity in Undisturbed Volcanic Ash Soils, Soil Science Society of America Journal, vol.67, issue.1, pp.41-51, 2003.
DOI : 10.2136/sssaj2003.4100

W. G. Mook, J. C. Bommerson, and W. H. Staverman, Carbon isotope fractionation between dissolved bicarbonate and gaseous carbon dioxide, Earth and Planetary Science Letters, vol.22, issue.2, pp.169-176, 1974.
DOI : 10.1016/0012-821X(74)90078-8

A. Morandi, . Di, A. Muro, C. Principe, L. Michon et al., Prehistoric explosive activity at Piton de la Fournaise volcano, Active Volcanoes of the Southwest Indian Ocean: Piton de la Fournaise and Karthala. Active Volcanoes of the World, 2016.
DOI : 10.1007/978-3-642-31395-0_8

URL : https://hal.archives-ouvertes.fr/hal-01147342

R. Moretti and P. Papale, On the oxidation state and volatile behavior in multicomponent gas???melt equilibria, Chemical Geology, vol.213, issue.1-3, pp.265-280, 2004.
DOI : 10.1016/j.chemgeo.2004.08.048

M. Ort, D. Muro, A. Michon, L. Bachèlery, and P. , Explosive eruptions from the interaction of magmatic and hydrothermal systems during fl ank extension: the Bellecombe ashes of Piton de la Fournaise, Bull. Volcanol, 2016.

P. Papale, fluid in silicate liquids, American Mineralogist, vol.84, issue.4, pp.477-492, 1999.
DOI : 10.2138/am-1999-0402

P. Papale, R. Moretti, and D. Barbato, The compositional dependence of the saturation surface of H2O+CO2 fluids in silicate melts, Chemical Geology, vol.229, issue.1-3, pp.78-95, 2006.
DOI : 10.1016/j.chemgeo.2006.01.013

D. Patanè, A. Aiuppa, M. Aloisi, B. Behncke, A. Cannata et al., Insights into magma and fluid transfer at Mount Etna by a multiparametric approach: A model of the events leading to the 2011 eruptive cycle, Journal of Geophysical Research: Solid Earth, vol.93, issue.B4, pp.3519-3539, 2013.
DOI : 10.1029/JB093iB05p04249

A. Peltier, P. Bachèlery, and T. Staudacher, Magma transport and storage at Piton de La Fournaise (La R??union) between 1972 and 2007: A review of geophysical and geochemical data, Journal of Volcanology and Geothermal Research, vol.184, issue.1-2, pp.93-108, 2009.
DOI : 10.1016/j.jvolgeores.2008.12.008

A. Peltier, F. Beauducel, N. Villeneuve, V. Ferrazzini, D. Muro et al., Deep fluid transfer evidenced by surface deformation during the 2014???2015 unrest at Piton de la Fournaise volcano, Journal of Volcanology and Geothermal Research, vol.321, pp.140-148, 2016.
DOI : 10.1016/j.jvolgeores.2016.04.031

N. M. Pérez, G. D. Padilla, E. Padrón, P. A. Hernández, G. V. Melián et al., Precursory diffuse CO2 and H2S emission signatures of the 2011?2012 El Hierro submarine eruption Canary Islands, Geophys. Res. Lett, vol.39, 2012.

A. Revil, A. Finizola, S. Piscitelli, E. Rizzo, T. Ricci et al., diffuse degassing measurements, Journal of Geophysical Research, vol.55, issue.6, 2008.
DOI : 10.2118/1863-A

URL : https://hal.archives-ouvertes.fr/insu-00335616

A. Revil, A. Finizola, T. Ricci, E. Delcher, A. Peltier et al., Hydrogeology of Stromboli volcano, Aeolian Islands (Italy) from the interpretation of resistivity tomograms, self-potential, soil temperature and soil CO2 concentration measurements, Geophysical Journal International, vol.186, issue.3, pp.1078-1094, 2011.
DOI : 10.1111/j.1365-246X.2011.05112.x

URL : https://hal.archives-ouvertes.fr/insu-00681400

G. Roult, A. Peltier, B. Taisne, T. Staudacher, V. Ferrazzini et al., A new comprehensive classification of the Piton de la Fournaise activity spanning the 1985???2010 period. Search and analysis of short-term precursors from a broad-band seismological station, Journal of Volcanology and Geothermal Research, vol.241, issue.242, pp.241-242, 2012.
DOI : 10.1016/j.jvolgeores.2012.06.012

J. L. Seidel, A. Bonneville, and J. F. Lenat, Radon measurements related to Piton de la Fournaise (Réunion) from 1983 to 1987, C.R. Acad. Sci. Paris, vol.306, pp.89-92, 1988.

A. J. Sinclair, Selection of threshold values in geochemical data using probability graphs, Journal of Geochemical Exploration, vol.3, issue.2, pp.129-149, 1974.
DOI : 10.1016/0375-6742(74)90030-2

J. P. Toutain and J. C. Baubron, Gas geochemistry and seismotectonics: a review, Tectonophysics, vol.304, issue.1-2, pp.1-24, 1999.
DOI : 10.1016/S0040-1951(98)00295-9

J. P. Toutain, J. C. Baubron, and L. François, Runoff control of soil degassing at an active volcano. The case of Piton de la Fournaise, R??union Island, Earth and Planetary Science Letters, vol.197, issue.1-2, pp.83-94, 2002.
DOI : 10.1016/S0012-821X(02)00467-3

V. R. Troll, D. R. Hilton, E. M. Jolis, J. P. Chadwick, L. S. Blythe et al., Crustal CO2 liberation during the 2006 eruption and earthquake events at Merapi volcano, Indonesia, Geophys. Res. Lett, vol.39, 2012.
DOI : 10.1029/2012gl051307

T. Trull, S. Nadeau, F. Pineau, M. Polvé, and M. Javoy, C-He systematics in hotspot xenoliths: Implications for mantle carbon contents and carbon recycling, Earth and Planetary Science Letters, vol.118, issue.1-4, 1993.
DOI : 10.1016/0012-821X(93)90158-6

B. G. Upton, M. Semet, and J. L. Joron, Cumulate clasts in the Bellecombe Ash Member, Piton de la Fournaise, R??union Island, and their bearing on cumulative processes in the petrogenesis of the R??union lavas, Journal of Volcanology and Geothermal Research, vol.104, issue.1-4, pp.297-318, 2000.
DOI : 10.1016/S0377-0273(00)00212-2

N. Villeneuve and P. Bachèlery, Review of volcanic eruption typology at the Piton de la Fournaise, processes and hazards, Cybergeo, pp.1-25, 2006.
DOI : 10.2113/172.2.177

T. L. Wright and F. W. Klein, Deep magma transport at Kilauea volcano, Hawaii, Lithos, vol.87, issue.1-2, pp.50-79, 2006.
DOI : 10.1016/j.lithos.2005.05.004