Publications [John Stix]


  • Rooyakkers, S.M., Stix, J., Berlo, K., Barker, S.M., (2020). Emplacement of unusual rhyolitic to basaltic ignimbrites during collapse of a basalt-dominated caldera: The Halarauður eruption, Krafla (Iceland). GSA Bulletin, 132 (9-10), 1881–1902, doi:10.1130/B35450.1.

  • Beard, C.D., van Hinsberg, V.J., Stix, J., Wilke, M., (2019). Clinopyroxene/melt trace element partitioning in sodic alkaline magmas. Journal of Petrology, 60(9), 1797-1823.

  • D’Arcy, F., Boucher, É., De Moor, J.M., Hélie, J.F., Piggott, R., Stix, J., (2019). Carbon and sulfur isotopes in tree rings as a proxy for volcanic degassing. Geology, 47(9), 825-828.

  • de Moor, J.M., Stix, J., Avard, G., Muller, C., Corrales, E., Diaz, J.A., Alan, A., Brenes, J., Pacheco, J., Aiuppa, A., Fischer, T.P., (2019). Insights on hydrothermal‐magmatic interactions and eruptive processes at Poás volcano (Costa Rica) from high‐frequency gas monitoring and drone measurements. Geophysical Research Letters, 46(3), 1293-1302.

  • Beaudry, P., Longpré, M.A., Economos, R., Wing, B.A., Bui, T.H., Stix, J., (2018). Degassing-induced fractionation of multiple sulphur isotopes unveils post-Archaean recycled oceanic crust signal in hotspot lava. Nature communications, 9(1), 5093.

  • D’Arcy, F., Stix, J., de Moor, J.M., Rüdiger, J., Diaz, J.A., Alan, A. and Corrales, E., (2018). Drones swoop in to measure gas belched from volcanoes. Eos, Trans. Am. Geophys. Union, 99, doi:10.1029/2018EO102329.

  • Kennedy, B.M., Holohan, E.P., Stix, J., Gravley, D.M., Davidson, J., and Cole, J.W., (2018). Magma plumbing beneath collapse caldera volcanic systems. Earth-Sci. Rev, 177, 404-424.

  • Rooyakkers, S.M., Wilson, C.J.N., Schipper, C.I., Baker, S.J., and Allan, A.S.R., (2018). Textural and micro-analytical insights into mafic-felsic interactions during the Oruanui eruption, Taupo. Contrib. Mineral. Petrol., 173, 35, doi:10.1007/s00410-018-1461-6.

  • Seropian, G. and Stix, J., (2018). Monitoring and forecasting fault development at actively forming calderas: An experimental study. Geology, 46, 23-26, doi:10.1130/G39551.1.

  • Stix, J., (2018). Understanding fast and slow unrest at volcanoes and implications for eruption forecasting. Front. Earth Sci, 6, 56, doi:10.3389/feart.2018.00056.

  • Stix, J. and de Moor, J.M., (2018). Understanding and forecasting phreatic eruptions driven by magmatic degassing. Earth, Planets and Space, 70, 83, doi:10.1186/s40623-018-0855-z.

  • Stix, J., de Moor, J.M., Rüdiger, J., Alan, A., Corrales, E., D’Arcy, F., Diaz, J.A., and Liotta, M., (2018). Using drones and miniaturized instrumentation to study degassing at Turrialba and Masaya volcanoes, Central America. J. Geophys. Res., 123, 6501-6520, doi:10.1029/2018JB015655.

  • Stix, J., Gyakum, J., Caissy, K., Steeves-Fuentes, A., Yan, W.W., Roop, F., Vungoc, P.-A., Walker, C., Finkelstein, A., and Winer, L., (2018). A new Massive Open Online Course on natural disasters. Eos, Trans. Am. Geophys. Union, 99, doi:10.1029/EO091699.

  • Bray, B., Stix, J., and Cousens, B., (2017). Mafic replenishment of multiple felsic reservoirs at the Mono domes and Mono Lake islands, California. Bull. Volcanol., 79, 54, doi: 10.1007/s00445-017-1123-y.

  • Longpré, M.-A., Stix, J., Klügel, A., and Shimizu, N., (2017). Mantle to surface degassing of carbon- and sulphur-rich alkaline magma at El Hierro, Canary Islands. Earth Planet. Sci. Lett., 460, 268-280.

  • Malowany, K.S., Stix, J., de Moor, J.M., Chu, K., Lacrampe-Couloume, G., and Sherwood Lollar, B., (2017). Carbon isotope systematics of Turrialba volcano, Costa Rica, using a portable cavity ring-down spectrometer. Geochem. Geophys. Geosys., 18, 2769-2784, doi:10.1002/2017GC006856.

  • Stix, J., Lucic, G., and Malowany, K., (2017). Near real-time field measurements of δ13C in CO2 from volcanoes. Bull. Volcanol., 79, 62, doi:10.1007/s00445-017-1144-6.

  • Coumans, J.P. and Stix, J., (2016). Caldera collapse at near-ridge seamounts: an experimental investigation. Bull Volcanol., 78(10), 70, doi:10.1007/s00445-016-1065-9.

  • Coumans, J.P., Stix, J., Clague, D.A., Minarik, W.G., and Layne, G.D., (2016). Melt-rock interaction near the Moho: Evidence from crystal cargo in lavas from near-ridge seamounts. Geochimica et Cosmochimica Acta, 191, 139-164.

  • Lucic, G., Berg, A.-S., and Stix, J., (2016). Water-rich and volatile-undersaturated magmas at Hekla Evolcano, Iceland. Geochemistry, Geophysics, Geosystems, 17(8), 3111–3130.

  • Nadeau, O., Stix J., and Williams-Jones, A.E., (2016). Links between arc volcanoes and porphyry-epithermal ore deposits. Geology, 44(1), 11-14, doi:10.1130/G37262.1.

  • Coumans, J.P., Stix, J., Clague, D.A., and Minarik, W.G., (2015). The magmatic architecture of Taney Seamount-A, NE Pacific Ocean. Journal of Petrology, 56(6), 1037–1067, doi: 10.1093/petrology/egv027.

  • Kennedy, B., Stix, J., Hon, K., Deering, C., and Gelman S., (2015). Magma storage, differentiation, and interaction at Lake City caldera, Colorado, USA. Geol. Soc. Am. Bull, 128(5-6), 764-776, doi:10.1130/B31305.1.

  • Klügel, A., Longpré, M.-A., García-Cañada, L., and Stix, J., (2015). Deep intrusions, lateral magma transport and related uplift at ocean island volcanoes. Earth Planet. Sci. Lett., 431, 140-149.

  • Lucic, G., Stix, J., and Wing, B., (2015). Structural controls on the emission of magmatic carbon dioxide gas, Long Valley Caldera, USA. Journal of Geophysical Research B: Solid Earth, 120(4), 2262-2278.

  • Malowany, K., Stix, J., Van Pelt, A., and Lucic, G., (2015). H2S interference on CO2 isotopic measurements using a Picarro G1101-I cavity ring-down spectrometer. Atmos. Meas. Tech., 8, 4075-4082.

  • Longpré, M.-A., Klügel, A., Diehl, A., and Stix, J., (2014). Mixing in mantle magma reservoirs prior to and during the 2011-2012 eruption at El Hierro, Canary Islands. Geology, 42(4), 315-318.

  • Longpré, M.-A., Stix, J., Burkert, C., Hansteen, T., and Kutterolf, S., (2014). Sulfur budget and global climate impact of the AD 1835 eruption of Cosigüina volcano, Nicaragua. Geophys. Res. Lett., 41(19), 6667-6675, doi:10.1002/2014GL061205.

  • Longpré, M.-A., Stix, J., Costa, F., Espinoza, E., and Muñoz, A, (2014). Magmatic processes and associated timescales leading to the January 1835 eruption of Cosigüina Volcano, Nicaragua. Journal of Petrology, 55(6), 1173-1201.

  • Lucic, G., Stix, J., Sherwood Lollar, B., Lacrampe-Couloume, G., Muñoz, A., and Carcache, M.I., (2014). The degassing character of a young volcanic center: Cerro Negro, Nicaragua. Bulletin of Volcanology, 76(9), 1-23, doi: 10.1007/s00445-014-0850-6.

  • Helo, C., Clague, D.A., Dingwell, D.B., and Stix, J., (2013). High and highly variable cooling rates during pyroclastic eruptions on Axial Seamount, Juan de Fuca Ridge. Journal of Volcanology and Geothermal Research, 253, 54-64.

  • Mann, C.P., Wallace, P.J., and Stix, J., (2013). Phenocryst-hosted melt inclusions record stalling of magma during ascent in the conduit and upper magma reservoir prior to vulcanian explosions, Soufrière Hills volcano, Montserrat, West Indies. Bulletin of Volcanology, 75(2), 1-16.

  • Nadeau, O., Stix, J., and Williams-Jones, A.E., (2013). The behaviour of Cu, Zn and Pb during magmatic-hydrothermal activity at Merapi volcano, Indonesia. Chemical Geology, 342, 167-179.

  • Nadeau, O., Williams-Jones, A.E., and Stix, J., (2013). Magmatic-hydrothermal evolution and semi-closed-system devolatilization beneath Merapi volcano, Indonesia. J. Volcanol. Geotherm. Res., 261, 50-68.

  • Wilcock, J., Goff, F., Minarik, W.G., and Stix, J., (2013). Magmatic recharge during formation and resurgence of the Valles caldera, New Mexico, USA: evidence from quartz compositional zoning and geothermometry. J. Petrology, 54(4), 635-664, doi:10.1093/petrology/egs078 .

  • Berlo, K., Stix, J., Roggensack, K., and Ghaleb, B., (2012). A tale of two magmas, Fuego, Guatemala. Bull. Volcanol., 74(2), 377-390, doi:10.1007/s00445-011-0530-8.

  • Girard, G., and Stix, J., (2012). Future volcanism at Yellowstone caldera: insights from geochemistry of young volcanic units and monitoring of volcanic unrest. GSA Today, 22(9), 4-10, DOI:10.1130/GSATG143A.1.

  • Kennedy, B., Wilcock, J., and Stix, J., (2012). Caldera resurgence during magma replenishment and rejuvenation at Valles and Lake City calderas. Bull. Volcanol., 74(8), 1833-1847, doi: 10.1007/s00445-012-0641-x.

  • Stix, J., and Phillips, J.C., (2012). An analogue investigation of magma fragmentation and degassing: effects of pressure, volatile content, and decompression rate. J. Volcanol. Geotherm. Res., 211-212, 12-23.

  • Helo, C., M.-A. Longpré, N. Shimizu, D.A. Clague, and J. Stix, (2011). Explosive eruptions on mid-ocean ridges driven by CO2-rich magmas. Nature Geoscience, 4, 260-263.

  • Stix, J., and J.C. Phillips, (2011). An analogue investigation of magma fragmentation and degassing: effects of pressure, volatile content, and decompression rate. J. Volcanol. Geotherm. Res., 211-212, 12-23, doi:10.1016/j.jvolgeores.2011.10.001.

  • Girard, G., and Stix, J., (2010). Rapid extraction of discrete magma batches from a large differentiating magma chamber: the Central Plateau Member rhyolites, Yellowstone Caldera, Wyoming. Contributions to Mineralogy and Petrology, 160, 441-465.

  • Nadeau, O., Williams-Jones, A.E., and Stix, J., (2010). Sulphide magma as a source of metals in arc related magmatic hydrothermal ore fluids. Nature Geoscience, 3, 501-505.

  • Campbell, M.E., Hanson, J.B., Minarik, W.G., Stix, J., (2009). Thermal history of the Bandelier magmatic system: evidence for magmatic injection and recharge at 1.61 Ma as revealed by cathodoluminescence and titanium geothermometry. Journal of Geology, 117, 469-485.

  • Girard, G., and Stix, J., (2009). Magma recharge and crystal mush rejuvenation associated with early post-collapse Upper Basin Member rhyolites, Yellowstone caldera, Wyoming. Journal of Petrology, 50, 2095-2125.

  • Girard, G., and Stix, J., (2009). Buoyant replenishment in silicic magma reservoirs: experimental approach and implications for magma dynamics, crystal mush remobilization and eruption. Journal of Geophysical Research, 114, B08203, doi: 10.1029/2008JB005791.

  • Mueller, W.U., Stix, J., Corcoran, P.L., and Daigneault, R., (2009). Subaqueous calderas in the Archean Abitibi greenstone belt: an overview and new ideas. Ore Geology Reviews, 35, 4-46.

  • Kennedy, B.M., Jellinek, A.M., and Stix, J., (2008). Coupled caldera subsidence and stirring inferred from analogue models. Nature Geoscience, 1, 385-389.

  • Stix, J. and Kobayashi, T., (2008). Magma dynamics and collapse mechanisms during four historic caldera-forming events. J. Geophys. Res., 113, B09205, doi:10.1029/2007JB005073.

  • Kennedy, B. and Stix, J., (2007). Magmatic processes associated with caldera collapse at Ossipee ring dyke, New Hampshire. Geol. Soc. Am. Bull., 119, 3-17.

  • Longpré, M.-A., Staudacher, T. and Stix, J., (2007). The November 2002 eruption at Piton de la Fournaise volcano, La Réunion Island: ground deformation, seismicity, and pit crater collapse. Bull. Volcanol., 69, 511-525.

  • Stix, J., (2007). Stability and instability of quiescently active volcanoes: the case of Masaya, Nicaragua. Geology, 35, 535-538.

  • Rose, W.I. and Stix, J., (2006). Experimental multi-university graduate class in volcanology. EOS, Trans. Am. Geophys. Union, 87, 198.

  • Dartevelle, S., W.I. Rose, J. Stix, K. Kelfoun, and J.W. Vallance, (2004). Numerical modeling of geophysical granular flows: 2. Computer simulations of plinian clouds and pyroclastic flows and surges. Geochemistry, Geophysics, and Geosystems, 5(8), Q08004.

  • Kennedy, B., J. Stix, J.W. Vallance, Y. Lavallée, and M.-A. Longpré, (2004). Controls on caldera structure: results from analogue sandbox modeling. Geol. Soc. Am. Bull., 116, 515-524.

  • Lavallée, Y., B. Kennedy, J. Stix, M. Richer, and M.-A. Longpré, (2004). Caldera subsidence in areas of variable topographic relief: results from analogue modelling. J. Volcanol. Geotherm. Res., 129, 219-236.

  • Mann, C.P., J. Stix, M. Richer, and J.W. Vallance, (2004). Subaqueous intracaldera volcanism, Ilopango caldera, El Salvador, Central America. Geol. Soc. Am. Spec. Pap., 375, 159-174.

  • Richer, M., C.P. Mann, and J. Stix, (2004). Mafic magma injection triggering eruption at Ilopango caldera, El Salvador, Central America. Geol. Soc. Am. Spec. Pap., 375, 175-189.

  • Schatz, O.J., D. Dolejs, J. Stix, A.E. Williams-Jones, and G.D. Layne, (2004). Partitioning of boron among melt, brine and vapor in the system haplogranite-H2O-NaCl at 800°C and 100 Mpa. Chem. Geol., 210, 135-147.

  • Witter, J.B., V.C. Kress, P. Delmelle, and J. Stix, (2004). Volatile degassing, petrology, and magma dynamics of the Villarrica lava lake, southern Chile. J. Volcanol. Geotherm. Res., 134, 303-337.

  • Kennedy, B. and Stix, J., (2003). Igneous rock associations of Canada 2. Stages in the temporal evolution of calderas. Geoscience Canada, 30, 129-140.

  • Kennedy, B. and Stix, J., (2003). Igneous rock associations 1. Styles and mechanisms of caldera collapse. Geoscience Canada, 30, 59-72.

  • Lewicki, J.L., Connor, C., St-Amand, K., Stix, J. and Spinner, W., (2003). Self-potential, soil CO2 flux, and temperature on Masaya volcano, Nicaragua. Geophys. Res. Lett., 30(15), HLS2/1, doi: 10.1029/2003GL017731 .

  • Najman, Y., Garzanti, E., Pringle, M., Bickle, M., Stix, J. and Khan I., (2003). Early-middle Miocene paleodrainage and tectonics in the Pakistan Himalaya. Geol. Soc. Am. Bull., 115, 1265-1277.

  • Stix, J., Kennedy, B., Hannington, M., Gibson, H., Fiske, R., Mueller, W. and Franklin, J., (2003). Caldera-forming processes and the origin of submarine volcanogenic massive sulfide deposits. Geology, 31, 375-378.

  • Stix, J., Layne, G.D. and Williams, S.N., (2003). Mechanisms of degassing at Nevado del Ruiz volcano, Colombia. J. Geol. Soc. (London, United Kingdom), 160, 507-521.

  • Wardell, L., Delmelle, P., Fischer,T., Lewicki, J., Malavassi, E., Stix, J. and Strauch, W., (2003). Volcanic gas workshop features state-of-the-art measurement techniques. EOS, Trans. Am. Geophys. Union, 84(47), 519-520.

  • Dartevelle, S., Ernst, G.G.J., Stix, J. and Bernard, A., (2002). Origin of the Mount Pinatubo climactic eruption cloud: Implications for volcanic hazards and atmospheric impacts. Geology, 30, 663-666.

  • Delmelle, P., Stix, J., Baxter, P.J., Garcia-Alvarez, J. and Barquero, J., (2002). Atmospheric dispersion, environmental effects and potential health hazard associated with the low-altitude gas plume of Masaya volcano, Nicaragua. Bull. Volcanol., 64, 423-434.

  • Harvey, D.C., Gaonac'h, H., Lovejoy, S. and Stix, J., (2002). Multifractal characterization of remotely sensed volcanic features: A case study from Kilauea Volcano, Hawaii. Fractals - Complex geometry patterns and scaling in nature and society, 10, 265-274.

  • Delmelle, P., Stix, J., Bourque, C. P-A., Baxter, P.J., Garcia-Alvarez, J. and Barquero, J., (2001). Dry deposition and heavy acid loading in the vicinity of Masaya Volcano, a major sulfur and chlorine source in Nicaragua. Environmental Science and Technology, 35, 1289-1293.

  • Stix, J., (2001). Flow evolution of experimental gravity currents: implications for pyroclastic flows at volcanoes. J. Geology, 109, 381-398.

  • Stix, J., and H. Gaonac'h, (2000). Gas, plume, and thermal modelling of volcanoes. in H. Sigurdsson, B. Houghton, S. McNutt, H. Rymer, and J. Stix (Editors), Encyclopedia of Volcanoes. Academic Press, , 1141-1163.

  • Ujike, O., and J. Stix, (2000). Geochemistry and origins of Ueno and On-take basaltic to andesitic rocks (<3 Ma) produced by distinct contributions of subduction components, central Japan. J. Volcanol. Geotherm. Res., 95, 49-64.

  • Watson, I.M., C. Oppenheimer, B. Voight, P.W. Francis, A. Clarke, J. Stix, A. Miller, D.M. Pyle, M.R. Burton, S.R. Young, G. Norton, S. Loughlin, B. Darroux, and MVO Staff, (2000). The relationship between degassing and ground deformation at Soufriere Hills volcano, Montserrat. J. Volcanol. Geotherm. Res., 98, 117-126.

  • Williams-Jones, G., J. Stix, M. Heiligmann, A. Charland, B. Sherwood Lollar, N. Arner, G. Garzón V., J. Barquero, and E. Fernandez, (2000). A model of diffuse degassing at three subduction-related volcanoes. Bull. Volcanol., 62, 130-142.