Search Results - "Journal of volcanology and geothermal research"

NanoSIMS results from olivine-hosted melt embayments: Magma ascent rate during explosive basaltic eruptions by Lloyd, Alexander S., Ruprecht, Philipp, Hauri, Erik H., Rose, William, Gonnermann, Helge M., Plank, Terry

“…The explosivity of volcanic eruptions is governed in part by the rate at which magma ascends and degasses. Because the time scales of eruptive processes can be…”
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Sensitivity test and ensemble hazard assessment for tephra fallout at Campi Flegrei, Italy by Selva, J., Costa, A., De Natale, G., Di Vito, M.A., Isaia, R., Macedonio, G.

“…We present the results of a statistical study on tephra dispersal in the case of a reactivation of the Campi Flegrei volcano. To represent the spectrum of…”
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Degassing processes during lava dome growth: Insights from Santiaguito lava dome, Guatemala by Holland, A.S. Peter, Watson, I. Matthew, Phillips, Jeremy C., Caricchi, Luca, Dalton, Marika P.

“…Eruptions of intermediate magma may be explosive or effusive. The development of open system degassing has been proposed as a pre-requisite for effusion of…”
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Gas mass derived by infrasound and UV cameras: Implications for mass flow rate by Delle Donne, D., Ripepe, M., Lacanna, G., Tamburello, G., Bitetto, M., Aiuppa, A.

“…Mass Flow Rate is one of the most crucial eruption source parameter used to define magnitude of eruption and to quantify the ash dispersal in the atmosphere…”
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Real-time assessment of potential seismic migration within a monitoring network using Red-flag SARA by Tan, Chiou Ting, Taisne, Benoît, Neuberg, Jurgen, Basuki, Ahmad

“…Magma opening new fluid pathways through the crust can generate migrating seismic sources following the trail of the magma. By using Seismic Amplitude Ratio…”
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Benchmarking and developing numerical Finite Element models of volcanic deformation by Hickey, James, Gottsmann, Joachim

“…Volcanic deformation during an unrest episode can provide valuable insights into potential magmatic plumbing system dynamics. Paramount to this is a model…”
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SO2 degassing at Tungurahua volcano (Ecuador) between 2007 and 2013: Transition from continuous to episodic activity by Hidalgo, Silvana, Battaglia, Jean, Arellano, Santiago, Steele, Alexander, Bernard, Benjamin, Bourquin, Julie, Galle, Bo, Arrais, Santiago, Vásconez, Freddy

“…We present continuous SO2 measurements performed at Tungurahua volcano with a permanent network of 4 scanning DOAS instruments between 2007 and 2013. The…”
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Investigating lava flow rheology using video analysis and numerical flow models by Lev, Einat, Spiegelman, Marc, Wysocki, Robert J., Karson, Jeffery A.

“…Lava rheology is a major control on lava flow behavior and a critical parameter in flow simulations, but is very difficult to measure at field conditions or…”
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Bubble mobility in mud and magmatic volcanoes by Tran, Aaron, Rudolph, Maxwell L., Manga, Michael

“…The rheology of particle-laden fluids with a yield stress, such as mud or crystal-rich magmas, controls the mobility of bubbles, both the size needed to…”
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Deep fluid transfer evidenced by surface deformation during the 2014–2015 unrest at Piton de la Fournaise volcano by Peltier, Aline, Beauducel, François, Villeneuve, Nicolas, Ferrazzini, Valérie, Di Muro, Andrea, Aiuppa, Alessandro, Derrien, Allan, Jourde, Kevin, Taisne, Benoit

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Tephra fallout hazard assessment for a Plinian eruption scenario at Volcán de Colima (Mexico) by Bonasia, R., Capra, L., Costa, A., Macedonio, G., Saucedo, R.

“…Volcanic ash fallout associated with renewal of explosive activity at Colima, represents a serious threat to the surrounding urbanized area. Here we assess the…”
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Phenomenology of tremor-like signals observed over hydrocarbon reservoirs by Dangel, S, Schaepman, M.E, Stoll, E.P, Carniel, R, Barzandji, O, Rode, E.-D, Singer, J.M

“…We have observed narrow-band, low-frequency (1.5–4 Hz, amplitude 0.01–10 μm/s) tremor signals on the surface over hydrocarbon reservoirs (oil, gas and water…”
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Mantle plume heterogeneity versus shallow-level interactions: A case study, the São Nicolau Island, Cape Verde archipelago by Millet, Marc-Alban, Doucelance, Régis, Schiano, Pierre, David, Karine, Bosq, Chantal

“…We present new Sr–Nd–Pb isotopic data, as well as major- and trace-element concentrations, for 19 basaltic samples from São Nicolau Island, Cape Verde…”
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Magma yield stress and permeability: Insights from multiphase percolation theory by Walsh, Stuart D.C., Saar, Martin O.

“…Magmas often contain multiple interacting phases of embedded solid and gas inclusions. Multiphase percolation theory provides a means of modeling assemblies of…”
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The restless, resurgent Campi Flegrei nested caldera (Italy): constraints on its evolution and configuration by Orsi, G., De Vita, S., di Vito, M.

“…We have collected new stratigraphic data in the Campi Flegrei caldera through surface geological mapping and study of cores drilled to various depths. We…”
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Reventador Volcano 2005: Eruptive activity inferred from seismo-acoustic observation by Lees, Jonathan M., Johnson, Jeffrey B., Ruiz, Mario, Troncoso, Liliana, Welsh, Matt

“…Reventador Volcano entered an eruptive phase in 2005 which included a wide variety of seismic and infrasonic activity. These are described and illustrated:…”
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Azores hotspot signature in the upper mantle by Silveira, Graça, Stutzmann, Eléonore, Davaille, Anne, Montagner, Jean-Paul, Mendes-Victor, L., Sebai, Amal

“…The Azores archipelago occupies a lateral branch of the Mid-Atlantic Ridge near the triple junction of three large tectonic plates, the North American, the…”
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Magnetic versus crystallographic fabrics in a basaltic lava flow by Bascou, Jérôme, Camps, Pierre, Marie Dautria, Jean

“…Combined anisotropy of magnetic susceptibility (AMS) and crystallographic studies were performed within a quaternary lava flow, for which we have a thorough…”
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Experiments on rift zone evolution in unstable volcanic edifices by Walter, Thomas R., Troll, Valentin R.

“…Large ocean island volcanoes frequently develop productive rift zones located close to unstable flanks and sites of older major sector collapses. Flank…”
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Towards more realistic values of elastic moduli for volcano modelling by Heap, Michael J., Villeneuve, Marlène, Albino, Fabien, Farquharson, Jamie I., Brothelande, Elodie, Amelung, Falk, Got, Jean-Luc, Baud, Patrick

“…•We provide porosity-Young’s modulus data for 276 volcanic rock samples.•We present a method to upscale these laboratory measurements to the rock mass…”
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